Stow Coffee Grinder SFG10E User Manual

OPERATION AND PARTS MANUAL  
MODEL SFG10E  
ELECTRIC SURFACE GRINDER  
Revision #1 (07/16/07)  
To find the latest revision of this  
publication, visit our website at:  
THIS MANUAL MUST ACCOMPANYTHE EQUIPMENT AT ALLTIMES.  
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TABLE OF CONTENTS  
Electric Surface Grinder  
SFG10E  
As a continuing effort to update our parts  
book, contact the MULTIQUIP literature  
department for the latest revision of your  
"Operation and Parts Manual"  
Silicosis/Respiratory Warnings .................................. 2  
Table Of Contents ..................................................... 3  
Parts Ordering Procedures ....................................... 4  
Notice to Operators................................................ 5-6  
Operator Instructional Data Sheet ............................ 7  
Safety Precautions ............................................... 8-11  
Assembly Instructions/Operations ..................... 12-31  
Maintenance/Service ......................................... 32-35  
Troubleshooting ...................................................... 36  
Storage ................................................................... 37  
Specifications .......................................................... 38  
Explanation Of Code In Remarks Column .............. 40  
Suggested Spare Parts ........................................... 41  
Operator Handle Assembly................................ 42-43  
Electric Motor Assembly..................................... 44-45  
Wheel Dolly Assembly........................................ 46-47  
Frame Assembly ................................................ 48-49  
Safety and Dust Shield Assembly ...................... 50-51  
Scarifier Assembly ............................................. 52-53  
Scrape-R-Tach Assembly .................................. 54-55  
Grinding Block Assembly ................................... 56-57  
Decals ................................................................ 58-59  
Specification and part number are subject  
to change without notice.  
Terms and Conditions of Sale ................................. 60  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 3  
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PARTS ORDERING PROCEDURES  
When ordering parts,  
please supply the following information:  
Dealer account number  
Dealer name and address  
Shipping address (if different than billing address)  
Return fax number  
Applicable model number  
Quantity, part number and description of each part  
Specify preferred method of shipment:  
FedEx or UPS Ground  
Note: Unless otherwise indicated by customer, all  
FedEx or UPS Second Day or Third Day orders are treated as “Standard Orders”, and will  
ship within 24 hours.We will make every effort to  
ship “Air Shipments” the same day that the order  
is received, if prior to 2PM west coast time.Stock  
Orders” must be so noted on fax or web forms.  
FedEx or UPS Next Day  
Federal Express Priority One  
DHL  
Truck  
Place Your Parts Order Via Web or Fax  
For Even More Savings!  
Here’s how to get help...  
Please have the model and serial number  
on hand when calling.  
(Domestic USA Dealers Only)  
STOW MAIN OFFICE  
18910 Wilmington Ave.  
Carson, CA 90746  
800-421-1244  
FAX: 310-537-3927  
Extra Discounts!  
All parts orders which include complete part numbers and  
are received by our automated web parts order system, or  
by fax qualify for the following extra discounts:  
Email: stow@stowmfg.com  
Internet: www.stowmfg.com  
Ordered  
via  
Standard  
orders  
Stock orders  
SALES DEPARTMENT  
310-661-4242  
877-289-7869 (877-BUY-STOW)  
PARTS DEPARTMENT  
800-427-1244  
310-537-3700  
SERVICE DEPARTMENT  
800-478-1244  
310-537-3700  
TECHNICAL ASSISTANCE  
800-478-1244  
($750 list and above)  
Fax: 310-604-9237  
Fax  
3%  
5%  
10%  
10%  
Web  
FAX: 800-672-7877  
FAX: 310-637-3284  
Special freight allowances  
when you order 10 or more  
line items via Web or Fax!**  
FedEx Ground Service at no charge for freight  
No other allowances on freight shipped by any other  
FAX: 310-537-4259  
FAX: 310-631-5032  
FAX: 310-537-1173  
carrier.  
WARRANTY DEPARTMENT  
800-421-1244, EXT. 279  
310-537-3700, EXT. 279  
**Common nuts, bolts and washers (all items under $1.00  
list price) do not count towards the 10+ line items.  
NOTE: DISCOUNTS ARE SUBJECT TO CHANGE  
Direct TOLL-FREE access  
to our Parts Department:  
STOW CONSTRUCTION EQUIPMENT  
A DIVISION OF MULTIQUIP INC.  
Toll-free nationwide — 800-427-1244  
POST OFFICE BOX 6254  
888-252-STOW [888-252-7869]  
FAX: 310-537-1986  
CARSON, CA 90749  
310-537-3700  
FAX: 800-556-1986  
Toll-free FAX — 800-6-PARTS-7 (800/672-7877)  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 4  
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NOTICETO OPERATORS  
IF YOU CAN NOT READ OR DO NOT FULLY UN- These safety alert symbols identify important safety  
DERSTAND THE CONTENTS OF THIS MANUAL, messages in this manual. When you see these  
PLEASE CONTACT THE FACTORY FOR PROPER symbols, be alert to the possibility of personal injury  
ASSISTANCE BEFORE ATTEMPTING TO OPER- and carefully read the message that follows.  
ATE THIS PRODUCT.  
Do not allow anyone to operate the SURFACE  
SI TU NO PUEDES LE’ER O NO COMPRENDES GRINDER without first reading this Operator Manual  
EL CONTENIDO DE ESTE MANUAL FAVOR DE and becoming familiar with its operation. The manu-  
PONERSE EN CONTACTO CON LA. FABRICA facturer of the SURFACE GRINDER has gone to great  
PARA ASSISTENCIA- A PROPIA ANTES DE extremes to provide the owner(s) and/or operator(s)  
INTENTAR PARA OPERAR ESTE PRODUCTO.  
with the finest equipment available for its intended job  
SOLLTEN SIE DIESE GEBRAUCHSANWEISUNG function of removing covering materials from concrete  
NICHT LESEN KOENNEN ODER ES NICHT and wood floor surfaces.Yet, the possibility exists that  
VOLLKOMMEN VERSTEHEN, WENDEN SIE SICH the SURFACE GRINDER can be utilized in and/or  
BITTE AN DEN HERSTELLER FUER RICHTIGE subjected to job applications not perceived and/or  
HILFE EHE SIE VERSUCHEN DIESES PRODUKT anticipated by the manufacturer. Such misuse and/or  
ZU OPERIEREN.  
misapplication of the SURFACE GRINDER can lead  
to the possibility of serious damage, injury or even  
SI VOUS NE LISEZ OU NE COMPRENDRE death. It is the responsibility of the owner(s) and/or  
ENTIEREMENT LES MATIERES DE CE MANUEL, operator(s) to determine that the SURFACE  
S’IL VOUS PLAIT, CONTACTEZ LUSINE POUR GRINDER is being utilized and/or operated within the  
LASSISTANCE  
D’UTILISER LE PRODUIT.  
APPROPRIEE  
AVANT scope of its intended job function. It is the responsibil-  
ity of the owner(s) and/or operator(s) to establish,  
monitor and constantly upgrade all safety programs  
and/or practices utilized in and for the operation of  
the SURFACE GRINDER. The purpose of such pro-  
grams is to provide for owner(s’) and/or operator(s’)  
DANGER  
safety.Operators must be instructed to recognize and  
avoid unsafe conditions associated with their work  
(29 CFR 1926.21 (b)(2)) and/or applicable updated  
revisions. It is the responsibility of the owner(s) and/  
or operator(s) to determine that no modifications and/  
or alterations have been made to the SURFACE  
GRINDER. Modifications and/or alterations can lead  
to the possibility of serious damage, injury or even  
death. It is the responsibility of the owner(s) and/or  
operator(s) to make this Operator Manual available  
for consultation during all phases of operation. Refer  
to OSHA 2207 and/or applicable updated revisions  
which contains all OSHA job safety and health rules and  
regulations (1926 and 1910) covering construction.  
You WILL be KILLED or SERIOUSLY injured if you DO  
NOT follow directions.  
CAUTION  
You CAN be INJURED if you DO NOT follow directions.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 5  
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NOTICETO OPERATORS  
The concept of powered SURFACE GRINDER has medically related problem. Because of the diverse  
been successfully utilized for many years as a type of prevailing job applications, job site  
practical solution to many types of surfacve conditions, operator experience levels and  
preparation requirements. The basic concept is operator physical characteristics, no warranty,  
proven and well accepted within the associated guarantee, representation and/or liability is made  
marketplaces. Use of a SURFACE GRINDER by the manufacturer as to the absolute  
requires strenuous work activity.This type of work correctness or sufficiency of any operational  
activity can be considered to be greater in procedure, operational position and/or technique.  
magnitude than that experienced with the use of There is no absolute guarantee that an operator  
many other types of both light construction and of any given experience level, physical size and/  
lawn and garden related equipment. This type of or physical condition will be immune to the  
work activity should only be attempted by possibility of and/or probable physical side effects  
operators of adequate physical size and stature, of the normal use of the SURFACE GRINDER.  
mental awareness and physical strength and Each potential operator must be made aware of  
condition.The body parts most noticeably affected and assume the operational and physical liability  
during any specific process are the arms, hands, described and/or associated with the use of the  
wrists, shoulders, lower back and legs. The SURFACE GRINDER. Improper use of the  
process can also produce excessive stress/strain SURFACE GRINDER can result in property  
directly to the back muscles, spinal vertebrae and damage and/or personal injury, including death.  
many other body parts. Back related pain can be Each potential operator not willing to assume the  
a side effect of utilizing a SURFACE GRINDER. operational and physical liability described and/  
An operator with a chronic back related problem or associated with the use of the SURFACE  
or a history of back and/or other medically related GRINDER, should not operate it. Proper levels of  
problems should not attempt to utilize the operator experience, skill and common sense are  
SURFACE GRINDER. Use of the SURFACE essential for maximizing the safe and efficient  
GRINDER may only aggravate this and any other operation of the SURFACE GRINDER.  
Record the SURFACE GRINDER and electric motor serial numbers in the spaces provided below.  
__________________ Model Number  
__________________ Serial Number  
__________________ Electric Motor Serial Number  
__________________ Date of Purchase  
Specifications and design are subject to change without improvements or discontinue manufacture at any time  
notice or obligation. All specifications are general in nature without notice or obligation. STOW and its agents accept  
and are not intended for specific application purposes.STOW no responsibility for variations which maybe evident in  
A Division of Multiquip reserves the right to make changes actual products, specifications, pictures and descriptions  
in design, engineering or specifications and to add contained in this publication.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 6  
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OPERATOR INSTRUCTIONAL DATA SHEET  
The following undersigned operators of the SURFACE  
GRINDER described and/or pertaining to this Operator  
Manual have received formal safety and operational in-  
formation/instruction from the undersigned owner(s)/  
instructor(s) in accordance to OSHA 29 CFR 1926.21 (b)(2)  
and/or applicable updated revisions pertaining to, but not  
necessarily limited to the:  
4) LOCAL LAWS, REGULATIONS AND CUSTOMS  
RESEARCHED FOR AND/OR BYTHE OWNER OF  
THE SURFACE GRINDER AND DEEMED APPLI-  
CABLETOTHE SAFE AND PROPER USE AND/OR  
OPERATION OF THE SURFACE GRINDER FOR  
ANY SPECIFIC JOB APPLICATION.  
5) FORMALIZED MAINTENANCE PROGRAM FOR  
THE SURFACE GRINDERTO BE DEVISED BYTHE  
1) READING,  
COMPREHENSION  
AND  
OWNER OFTHE SURFACE GRINDER IN ACCOR-  
DANCE WITH, BUT NOT NECESSARILY LIMITED  
TO, THE SPECIFICATIONS, GUIDELINES AND  
OPERATIONAL INFORMATION CONTAINED INTHE  
APPLICABLE OPERATOR MANUAL.  
ACKNOWLEDGEMENT OFTHE MATERIAL COM-  
PRISING THE ENTIRE CONTENTS OF THE  
APPLICABLE OPERATOR MANUAL.  
2) FORMALIZED OPERATOR SAFETY PROGRAMTO  
BE DEVISED BY THE OWNER OF THE SURFACE  
GRINDER IN CONJUNCTION WITH THE CON-  
TENTS OFTHE APPLICABLE OPERATOR MANUAL  
ANDTHE APPLICABLE MATERIAL INCLUDED IN  
THE NATIONAL ELECTRICAL CODE®.  
6) COMPREHENSIVE OPERATIONAL INSTRUC-  
TIONS FORTHE CORRECT AND PROPER USE OF  
THE SURFACE GRINDER AS PERTHE CONTENTS  
OFTHE APPLICABLE OPERATOR’S MANUAL AND  
APPLICABLE MATERIAL INCLUDED IN THE NA-  
TIONAL ELECTRIC CODE®.  
3) OSHA AND NATIONAL ELECTRIC CODE® RULES  
AND REGULATIONS RESEARCHED FOR AND/OR  
BYTHE OWNER OFTHE SURFACE GRINDER AND  
DEEMED APPLICABLE TO THE SAFE AND  
PROPER USE AND/OR OPERATION OFTHE SUR-  
FACE GRINDER FOR ANY SPECIFIC JOB  
APPLICATION.  
_________________ Operator  
____________________ Owner/Instructor  
____________________ Owner/Instructor  
_____________ Date  
_____________ Date  
_____________ Date  
_____________ Date  
_____________ Date  
_____________ Date  
_________________ Operator  
_________________ Operator  
_________________ Operator  
_________________ Operator  
_________________ Operator  
____________________ Owner/Instructor  
____________________ Owner/Instructor  
____________________ Owner/Instructor  
____________________ Owner/Instructor  
NOTE: INSERT COPIES OF THIS PAGE WITHIN THE OPERATOR’S MANUAL IF SPACE FOR ADDITIONAL  
OPERATORS IS REQUIRED.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 7  
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SAFETY PRECAUTIONS  
2) Develop a comprehensive program for the safe operation  
of the SURFACE GRINDER by its owner(s) and/or  
operator(s). Such a program will include, but is not  
limited to: instructional requirements for operation,  
applicable OSHA requirements, local laws and  
regulations, job site safety and a SURFACE GRINDER  
maintenance program. Constantly examine and upgrade  
this program to guarantee owner(s) and/or operator(s)  
safety. Each operator must be fully instructed regarding  
the specifics of this safety program.  
DANGER  
THE FOLLOWING SAFETY PRECAUTIONS PROVIDE  
SOME COMMON SENSE GUIDES TO PROMOTE  
SAFETY AND EFFICIENCY WITH THE SURFACE  
GRINDER.NOWARRANTY,GUARANTEE OR REPRE-  
SENTATION IS MADE BYTHE MANUFACTURER AS  
TO THE ABSOLUTE CORRECTNESS OR SUFFI-  
CIENCY OF ANY INFORMATION OR STATEMENT.  
THESE SAFETY PRECAUTIONS ARE INTENDEDTO  
DEAL PRINCIPALLY WITH COMMON PRACTICES  
AND CONDITIONS ENCOUNTERED INTHE USE OF  
THE SURFACE GRINDER AND ARE NOT INTENDED  
TO BE ALL INCLUSIVE. PROPER LEVELS OF OP-  
ERATOR EXPERIENCE,SKILL AND COMMON SENSE  
ARE ESSENTIAL FOR SAFE AND EFFICIENT OP-  
ERATION.  
3) Determine that the SURFACE GRINDER is in its original,  
factory configuration and has not been modified in any  
manner. Many modifications can result in potentially  
dangerous configurations that can lead to property  
damage and/or personal injury.If there are any questions  
about possible modifications made to the SURFACE  
GRINDER, contact the Customer Service Department  
for specific information BEFORE utilization. There is  
no charge for this service.Do not operate the SURFACE  
GRINDER without the use of the original equipmentV-  
belt guard. Use of the SURFACE GRINDER without an  
approved belt guard can lead to property damage and/  
or personal injury.  
DANGER  
4) Minors should never be allowed to operate the SURFACE  
GRINDER. Bystanders, especially children and animals,  
should not be allowed in the area where the SURFACE  
GRINDER is in use.The grinding process can result in  
flying particles being emitted at high velocity and striking  
the operator and/or onlookers. This can lead to the  
possibility of property damage and/or personal injury.  
Keep all body parts, loose clothing, foreign objects and  
onlookers clear of the rotating disc, multi-accessory  
attachments and flying particles.  
INCORRECT USE OFTHE SURFACE GRINDER CAN  
RESULT IN PROPERTY DAMAGE, PERSONAL  
INJURY OR EVEN DEATH. TO REDUCE THIS  
POSSIBILITY, GIVE COMPLETE AND UNDIVIDED  
ATTENTION TO THE JOB AT HAND AND FOLLOW  
THESE SAFETY PRECAUTIONS:  
5) Operators must be in adequate physical condition,  
mental health and not under the influence of any  
substance (drugs, alcohol, etc.) which might impair  
vision, dexterity or judgment. Working with the  
SURFACE GRINDER is strenuous. If you have any  
condition that might be aggravated by strenuous work,  
check with your doctor BEFORE operating the  
SURFACE GRINDER. Guide against the possibility of  
back related injuries. Always lift the SURFACE  
GRINDER with leg muscles and not with the back.  
PREPARATION  
1) This SURFACE GRINDER is specialized type of  
powered equipment, designed for a specific job function  
and requires adequate and thorough instruction  
BEFORE it is operated. The size, power, complexity  
and operating characteristics of this type of powered  
equipment would dictate that each operator must receive  
adequate, professional instruction regarding the proper  
operation of this SURFACE GRINDER before being  
allowed to utilize it. BEFORE attempting to utilize this  
SURFACE GRINDER, read this Operator’s Manual and  
the material supplied by the motor manufacturer to  
familiarize each operator with its correct operating  
procedures. Avoid the urge not to take the necessary  
time to read this Operator’s Manual before operating  
the SURFACE GRINDER. DO NOT OPERATE THE  
SURFACE GRINDER UNTIL EACH OPERATOR  
COMPLETELY COMPREHENDSTHE CONTENTS OF  
THIS MANUAL.  
6) Prolonged use of the SURFACE GRINDER (or other,  
similar machines) exposes the operator to vibrations  
which may produce Whitefinger Disease (Raynaud’s  
Phenomenon). This phenomenon reduces the hand’s  
ability to feel and regulate temperature, produces  
numbness and burning sensations and may cause nerve  
and circulation damage and tissue necrosis. Anti-  
vibration systems do not guarantee that you will not  
sustainWhitefinger Disease.Therefore, continuous and  
regular users should closely monitor the condition of  
their hands and fingers. After each period of use,  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 8  
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SAFETY PRECAUTIONS  
exercise to restore normal blood circulation. If any of  
the symptoms appear, seek medical advice immediately.  
electrical cables, gas lines and other hazardous items  
can result in electrocution and/or an explosion.  
10) Know how the controls operate. Know how to stop the  
electric motor quickly in an emergency. Always start  
the electric motor according to the instructions as  
outlined in this manual to minimize the possibility of  
unexpected contact with the work surface. Unexpected  
contact with the work surface can cause loss of  
machine control, and the possibility of property damage  
and/or personal injury.  
7) Clothing must be sturdy and snug fitting, but allow  
complete freedom of movement. Never wear loose fitting  
jackets, scarves, neckties, jewelry, flared or cuffed  
pants or anything that could become caught on controls  
or moving parts. Wear long pants to protect your legs.  
Protect your hands with heavy duty, non-slip gloves to  
improve your grip.Good footing is most important when  
operating the SURFACE GRINDER.  
11) Ground the electrically powered SURFACE GRINDER  
motor securely.Determine that anygroundingwire and/  
or device is, in fact, properly grounding the motor.Failure  
to properly ground the motor may cause an electrical  
shock and/or electrocution, resulting in property  
damage and personal, injury including death. Electrical  
wiring and all connections should be performed by a  
qualified electrician. The electric motor is designed to  
operate from a 115 AC power source.  
Wear sturdy boots with non-slip soles. Steel-toed safety  
shoes are highly recommended. Never wear tennis  
shoes or other, similar type shoes which afford little or  
no protection. Wear an approved safety hard hat to  
protect the operator’(s’) head(s) where there is a danger  
of head injuries. Noise, generated by the SURFACE  
GRINDER and the actual process itself, can damage  
your hearing.Wear approved sound barriers (ear plugs  
or ear mufflers) to protect your hearing. Continuous and  
regular operators should have their hearing checked  
regularly.  
12) When operating the SURFACE GRINDERs on a surface  
containing water or other electrically conducting liquid,  
special precautions must be taken to minimize the  
possibility of operator electrocution. Once such  
precaution is to wire and operate the electric motor from  
a clean, 20 Ampere, 115 Volt AC power source in  
conjunction with a ground fault circuit interrupter (GFCI).  
A GFCI is a safety device that disconnects power from  
a circuit to a load when a potentially dangerous condition  
occurs. The GFCI opens the circuit when the fault  
current flow from a power line to a ground exceeds the  
safe limit for humans.  
8) Visually inspect the SURFACE GRINDER, components,  
tools and accessories for damaged or worn parts.  
BEFORE each use:  
a) Disconnect the power source cable.  
b) Clean and remove all accumulated foreign matter  
from the wheels and determine that each rotates  
freely.  
c) Clean and remove all accumulated foreign matter  
from inside the mainframe area.  
The GFCI protects against harmful electrical shock to  
a person caused by contact with a defective electrical  
product. A GFCI differs from a fuse or circuit breaker.A  
fuse or circuit breaker opens the circuit when the total  
current flow in the power line exceeds the safe limit of  
the power line. They are designed to protect against  
fire caused by overheating of the power line. Use of a  
GFCI gives on the job protection from electrical shock  
hazards caused by ground faults in commercial,  
industrial and residential applications.They are simple  
and easy to use:plug a portable GFCI into any suitable,  
grounded extension cord and plug the SURFACE  
GRINDER into the GFCI for automatic protection  
against ground faults.  
d) Inspect theV-belt drive for proper tension, wear and  
general condition. Replace each component as  
necessary.  
e) Inspect the multi-accessory disc and gimbal head  
assembly for excessive wear and structural  
integrity. Replace each component as necessary.  
The multi-accessory disc rotating at high speed  
during the specific process can be subject to high  
wear rates if the installed attachment is not properly  
maintained and/or replaced at regular service  
intervals.  
f) Determine that operator controls work freely, all  
safety devices are operative and information decals  
are readable.  
For specific information, consult current National  
Electrical Code® publications and OSHA publications  
210-22D (or current revision) for construction sites and  
555-3 (or current revision) for use around any area  
containing water.  
g) Check to see that the SURFACE GRINDER and all  
related accessories are in good, mechanical  
condition BEFORE utilization.  
h) Reconnect the power source cable as applicable.  
9) Contact appropriate representatives to determine if/  
where electrical cables, gas lines and other hazardous  
items are buried under the work surface BEFORE  
utilization. The SURFACE GRINDER and related  
accessories are not insulated. Contact with buried  
13) Never exceed the recommended capacities of the  
SURFACE GRINDER. Refer to the Specifications  
sections of this manual for more detailed information  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 9  
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SAFETY PRECAUTIONS  
OPERATION  
and fingers. Always make sure the operator handle is  
in good condition and free of moisture, pitch, oil or  
grease.Wear gloves to improve your grip. Never leave  
the SURFACE GRINDER running unattended.  
1) Give complete and undivided attention to the job at  
hand. Do not chew gum, smoke and/or use smokeless  
tobacco while utilizing the SURFACE GRINDER. Do  
not attempt to eat and/or drink while utilizing the 7) Special care must be exercised on slippery conditions  
SURFACE GRINDER.Determine that eyeglasses and/  
or hearing aid devices are properly secured.  
and on difficult, uneven surfaces.Watch for cracks, high  
spots and other, surface irregularities. Keep proper  
footing and balance at all times.The normal use of this  
machine is on level surfaces. Other terrains can be  
dangerous and should be avoided. Only properly trained  
operators should attempt these techniques.  
Use of the SURFACE GRINDER is strenuous and  
causes fatigue. Help prevent the cause of an accident.  
Plan to take work breaks as required to help maintain  
proper mental and physical alertness.  
8) Never start the electric motor with the SURFACE  
GRINDER directly over cracked, uneven or irregular  
surfaces.  
2) This SURFACE GRINDER is not sealed or insulated.  
Do not operate the SURFACE GRINDER in an explosive  
atmosphere or near combustible materials. Refer to  
9) Clean and remove all accumulated foreign matter from  
inside the mainframe area after each use.This practice  
will maximize bearing and V-belt service life.  
®
current OSHA rules and regulations.  
3) The SURFACE GRINDER is designed for use by one  
operator.Use of the SURFACE GRINDER by more than  
one operator can lead to confusion and loss of control,  
resulting in property damage and/or personal injury.If it  
is felt that more than one person is required to operate  
the SURFACE GRINDER, STOP and contact the  
Customer Service Department for specific operational  
and service/maintenance information.There is no charge  
for this service.  
10) Because this SURFACE GRINDER is classified as a  
low cost, hand held, low horsepower, portable type  
machine, it is limited in the number of practical and/or  
suitable job applications. A particular job site, actual  
surface conditions, job specifications and operator skill/  
common sense may dictate that a different type of  
machine (with characteristics of higher purchase cost,  
being mounted to a carrier vehicle, with greater  
horsepower and less mobility), method and/or process  
be utilized to properly complete the job with the degree  
of efficiency and safety required. Contact the Customer  
Service Department for specific information regarding  
suitable job applications, job sites surface conditions  
and operator experience/skill/common sense  
recommendations for this SURFACE GRINDER  
BEFORE utilization.There is no charge for this service.  
4) Do not operate the SURFACE GRINDER with onlookers  
close by. Caution all onlookers to stand clear. The  
grinding process can result in flying particles being  
emitted at high velocity and striking the operator and/  
or onlookers.This can lead to the possibility of property  
damage and/or personal injury. Keep all body parts,  
loose clothing and foreign objects clear of the rotating  
drum and flails.  
5) Start the electric motor according to the instructions  
as outlined in this manual to minimize the possibility of  
unexpected contact with the work surface. Unexpected  
contact with the work surface can cause the loss of  
machine control and the possibility of property damage  
and/or personal injury.  
6) Start and operate the SURFACE GRINDER only in a  
well ventilated area.Operate the SURFACE GRINDER  
only when/where visibility and light are adequate for  
the job at hand.Work carefully.Always hold the operator  
handle firmly with both hands.Wrap your fingers around  
the handle, keeping it cradled between your thumbs  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 10  
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SAFETY PRECAUTIONS  
MAINTENANCE, REPAIR AND STORAGE  
1) Use only genuine, approved replacement parts and  
accessories for maintenance and repair. Use of parts  
and accessories manufactured by others can result  
in property damage and/or personal injury.  
2) Follow the Service instructions as outlined in the  
appropriate section of this manual.  
3) Always stop the electric motor and disconnect the  
power source cable BEFORE checking or working on  
the SURFACE GRINDER.  
4) Always properly maintain the SURFACE GRINDER.  
Frequently check all fasteners and individual parts.  
Built in safety features are effective only if they are  
maintained in good working condition. Replace any  
questionable part or assembly with a genuine, factory  
approved, replacement part. Do not forsake proper  
maintenance for the price of a few replacement parts.  
Proper maintenance does not cost...it actually pays  
dividends. Do not attempt any maintenance repair work  
not described in this manual. Have such work  
performed at your dealer’s service facility.  
5) Do not operate the SURFACE GRINDER without the  
use of factory approved V-belt and diamond blade  
guards that are maintained in proper structural  
condition. Frequently inspect the guards for signs of  
wear, cracks and other signs of fatigue. If there is  
any question regarding the structural integrity and/or  
condition of the belt guard, properly dispose and  
replace with a genuine, factory approved, replacement  
part only.  
6) Maintain all safety and operation decals in proper  
condition. If any decal becomes damaged and/or  
unreadable, replace with a genuine, factory approved,  
replacement part only.  
7) The SURFACE GRINDER utilizes many self-locking  
type hexagon head nuts to minimize the effects of  
vibration. Replace all self-locking hardware with  
genuine, factory approved, replacement parts only.  
8) Consult the material supplied by the electric motor  
manufacturer for specific information relative to proper  
operational, lubrication and storage requirements.  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
1) To contain loose materials within the platform area of  
the SURFACE GRINDER as a direct result of a specific  
grinding process.This includes materials removed from  
the surface as well as any slurry mixture utilized to  
help maximize material removal efficiencies.  
Assembly  
The SFG10E SURFACE GRINDER is shipped from the  
factory secured on a specially designed wooden pallet  
and protected from external damage by a corrugated carton  
or wood crate. If shipped with a corrugated carton, the  
SURFACE GRINDER can be secured to the pallet by wood  
laths nailed to the pallet body.Remove the carton or crate  
immediately upon receipt using suitable tools to remove  
the nails.  
2) To provide a method for a vacuum system to help  
remove airborne dust related materials from within the  
skirt assembly. Dust related materials are usually  
created as a result of the grinding process. A specific  
job application may require the reduction and/or  
minimization of airborne dust related materials from the  
atmosphere while the SURFACE GRINDER is being  
operated. The kit includes a hose and necessary  
hardware to connect the skirt assembly to the 3 inch  
diameter vacuum attachment fitting located at the rear  
of the machine. Use of the kit along with a suitable  
vacuum system will not completely remove all airborne  
and loose materials directly from the work surface.  
REMOVING THE SURFACE GRINDER FROM THE  
PALLET  
Tools Required:  
1 set of pliers.  
1 claw hammer or a hammer and an appropriate pry bar.  
The SURFACE GRINDER is secured to the pallet with  
steel banding. Using the pliers, cut and remove the  
banding.The SURFACE GRINDER can then be removed  
from the pallet.  
DANGER  
THE USE OFTHE SFSG121000 SAFETY AND DUST  
SHIELD ASSEMBLY KIT ALONGWITH A SUITABLE  
VACUUM SYSTEM TO REMOVE HAZARDOUS  
CLASSIFIED, AIRBORNE MATERIALS FROM THE  
WORK SURFACE WILL NOT ELIMINATE THE  
REQUIREMENT FOR PROPER SAFETY RELATED  
EQUIPMENT, OPERATING PLAN AND/OR  
PROCEDURES.  
DANGER  
WEAR SAFETY GLASSES AND OTHER APPROPRI-  
ATE SAFETY APPARELWHEN CUTTINGTHE STEEL  
BANDING AND/OR REMOVINGTHE CORRUGATED/  
WOOD SHIPPING CRATE.  
Visually inspect the shipment for freight damage and/or  
missing parts. If shipping damage is evident, contact the  
delivering carrier immediately to arrange for an inspection  
of the damage by their claims representative. Federal law  
requires that a claim be filed within a specific time period. If  
missing parts are detected, notify your dealer who will assist  
you in obtaining them.  
DANGER  
USE OFTHESFSG121000 SAFETY AND DUST SHIELD  
ASSEMBLY KIT ALONG WITH A SUITABLE VACUUM  
SYSTEM WILL NOT COMPLETELY REMOVE ALL  
LOOSE MATERIALS FROM THE WORK SURFACE.  
HAZARDOUS CLASSIFIED,LOOSE MATERIALS MUST  
BE REMOVED FROMTHEWORK SURFACE BY PRO-  
CESSES AND/OR PROCEDURES MEETING THE  
APPLICABLE OSHA AND/OR EPA REQUIREMENTS.  
The SURFACE GRINDER is shipped from the factory  
completely assembled. If ordered with the SURFACE  
GRINDER, multi-accessory attachments are normally  
shipped separately to minimize the potential for loss during  
shipment.  
Check all fasteners for proper security. Consult a fastener  
torque chart for the proper torque value if any fastener is  
found to require retorquing.  
After April 1, 1996 all single head SURFACE GRINDERS  
are shipped from the factory with the SFSG121000 Safety  
and Dust Shield Assembly Kit. The SFSG121000 Safety  
and Dust Shield is designed to perform the following job  
functions:  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
the imbedded silicon carbide material. All stones have the  
identical 2" x 2" X 4" dimensions and are secured to the  
machine by the use of a plastic wedge.  
Operation  
THEORY OF OPERATION  
The SFG10E SURFACE GRINDERS operate on the principle  
of various multi-accessory attachments being utilized at  
rotational speeds to make direct contact with a work  
surface.Various types of multi-accessory attachments are  
secured to a recess provided in the rotating, aluminum disc  
located on the bottom of the machine.The specific type of  
multi-accessory attachment utilized during the grinding  
process directly affects the type of material removed, the  
material removal rate and the resulting flatness and  
smoothness of the surface.  
The grinding process is directly controlled by these  
conditions:  
1) The use of a suitable mechanism (multi-accessory  
attachment) of proper design and configuration to grind  
the work surface and remove material while delivering  
acceptable service life.  
2) Sufficient static weight supporting the multi- accessory  
attachment to allow it to effectively penetrate the work  
surface and remove material.  
FIGURE 4  
3) Adequate horsepower capable of propelling the multi-  
accessory attachment against the work surface to  
deliver acceptable productivity rates.  
The designation system for the grinding stones utilizes a  
system similarly utilized for most abrasive products: the  
larger the number, the finer the grain structure and usually,  
the smoother resulting finish.  
Since no two materials are exactly alike, no two work surface  
materials can be penetrated and removed by the exact same  
method. The nature of the grinding process, along with  
operator experience, skill and common sense, would  
suggest that efficient and productive material removal is a  
matter of trial and error. Combinations of multi-accessory  
attachment type, condition, and feed rate are direct factors  
that will also determine the overall success of the job  
application.  
a) The C06 and C10 coarse grade stones are the most  
popular utilized stones and result in maximum material  
removal rates.They are utilized for general grinding and the  
removal of trowel marks, high spots and rough sections on  
concrete surfaces.The average service life is approximately  
4 to 10 hours.  
b)The C24 medium grade stone will result in lower material  
removal rates. It is utilized for finer finish grinding of concrete  
and rough grinding on terrazzo and other types of stone  
floor configurations.The average service life is approximately  
6 to 10 hours.  
MULTI-ACCESSORY ATTACHMENTS AND APPLICATIONS  
While individual multi-accessory attachment design and  
configuration may vary, basic operational characteristics  
are identical: impact upon a work surface material and  
remove a percentage of the material. This common  
operational characteristic has led to the development of  
the following popular multi-accessory attachments:  
c)The C80 fine grade stone will result in still lower material  
removal rates. It is utilized for polishing concrete and  
medium grinding on terrazzo and other types of stone floor  
configurations with a water/slurry mixture only.The average  
service life is approximately 8 to 20 hours.  
Grinding Stones  
Grinding stones are available in a number of grades,  
including: C06 extra coarse, C10 coarse, C24 medium, C80  
fine and C120 super fine grade. FIGURE 4. All stones  
incorporate silicon carbide as the abrasive medium and  
employ a clay binder as the matrix material. Vitrified type  
stones utilize an oven baking process that produces greater  
service life over other manufacturing processes. As the  
clay material wears away, it exposes new, sharp, edges of  
d)The C120 super fine grade stone will result in the lowest  
material removal rates. It is utilized for final polishing on  
terrazzo and other types of stone floor configurations with  
a water/slurry mixture only. The average service life is  
approximately 40 to 75 hours.  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
Tungsten Carbide Grinding Block  
insert flails. In turn, these costs must be compared to  
This multi-accessory attachment is most often utilized on anticipated service life. All flails will eventually wear to the  
larger concrete grinding projects where increased production point of requiring replacement.The amount of unproductive  
and service life are required. The block utilizes tungsten time spent to replace worn flails on a job can be substantially  
carbide balls approximately 1/16 inch diameter that are greater than the actual replacement cost of many flails. It  
deposited in a molten matrix material during the then becomes a balance between purchase cost,  
manufacturing process at a controlled rate.The end effect productivity, service life and labor cost.  
is a multi layer deposit of tungsten carbide balls in the matrix  
material. As the softer matrix material wears with use, it c) Surface finish and texture. The finest grained surface  
exposes a new layer of fresh tungsten carbide balls to finish available from the scarifying process is comparable  
continue the grinding process.The tungsten carbide grinding to a “swept or broomed” like finish. If a smooth, flat finish is  
block is considerably more aggressive than the C10 silicon desired, the scarifying process must be followed with a  
carbide grinding stone.With the ability to renew itself during grinding or polishing type process. Many job requirements  
usage, the normal life expectancy for this accessory can may call for large amounts of material to be removed, but  
approach several hundred hours.The nominal dimensions for followed with additional specifications requiring a finer  
the tungsten carbide grinding block is 2" x 2" x 4" and is secured surface finish or texture. Many times these jobs dictate the  
to the machine with a plastic wedge. FIGURE 5.  
use of an aggressive flail configuration because of  
productivity and cost considerations. Less aggressive flail  
configurations can then be utilized for the final finishing  
sequence. Generally speaking, the more aggressive the flail  
configurations, the more coarse the resulting finish and  
texture.  
Many flail configurations are available to meet a wide variety  
of job applications and surface material specifications. To  
give additional perspective to each configuration, a rating  
system of 1 to 10 (10 being highest) has been devised.  
FIGURE 5  
Scarifier Blocks  
These multi-accessory attachments are comprised of flails  
and spacer washers secured in a rigid steel case. FIGURE  
6. Rotation of the multi-accessory disc causes the flails to  
impact against the work surface with a variety of results.  
Scarifier blocks are secured to the machine with plastic  
wedges.  
Several factors directly affect the selection of a flail design  
for a specific job application:  
FIGURE 6  
a)The type and amount of material to be removed from the  
work surface. Materials of higher yield and tensile strengths  
along with the actual volume of material to be removed will  
generally be the first factors under consideration.  
Star Flail  
The star flail is manufactured from high carbon steel that is  
through hardened for additional service life. It is highly  
effective for light cleaning or scarifying and delivers a finer  
surface finish texture. FIGURE 7.  
b) Purchase cost versus service life.The original purchase  
cost of plain, heat-treated steel flails must be compared  
against the substantially higher costs of the tungsten carbide  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
COST 1  
PRODUCTIVITY 5  
SERVICE LIFE 2  
The beam flail should be replaced when the outside diameter  
is worn to approximately 1-5/16 inch or the inside diameter  
elongates to approximately 3/4 inch.  
Pentagonal Flail  
The pentagonal type flail is manufactured from high carbon  
steel that is through hardened for additional service life.  
Each section of the five sided design features a small,  
tungsten carbide insert that is held in position with copper  
brazing. It is highly effective for scabbling or scarifying and  
delivers medium to coarse finish texture. FIGURE 9.  
FIGURE 7  
Suggested Applications:  
1) Removal of thin coatings and encrusted accumulations.  
2) Cleaning concrete and asphaltic surfaces  
3) Removing thick material build-ups of greases, paints,  
oils, vegetable powders and some resins from floors.  
4) Light scarifying prior to the application of coatings,  
toppings or sealers.  
COST 1  
PRODUCTIVITY 3  
SERVICE LIFE 1  
The star flail should be replaced when the outside diameter  
is worn to approximately 1-5/16 inch or the inside diameter  
elongates to approximately 3/4 inch.  
FIGURE 9  
Suggested Applications:  
Beam Flail  
The beam type flail is manufactured from high carbon steel  
that is through hardened for additional service life. It is highly  
effective for scabbling or scarifying and delivers medium to  
coarse surface finish texture. FIGURE 8.  
1) Heavy duty asphalt and concrete scarifying.  
2) Heavy duty descaling of steel decks.  
The pentagonal flail is designed for more aggressive and  
rapid removal of a surface in comparison to the beam flail.  
The addition of the tungsten carbide inserts contributes to  
its long service life and higher production rates.The use of  
tungsten carbide is also the main reason for the cost  
differential between it and the other flails. The design  
configuration yields a rather coarse surface finish and  
texture. For many job applications, this finish and texture  
will be satisfactory. Some applications may require an  
additional smoothing process. If the resulting surface finish  
is too coarse to meet specifications, it can be smoothed  
with the use of the star or beam flail.  
FIGURE 8  
Suggested Applications:  
COST 10  
1) Medium duty asphalt and concrete scarifying.  
2) Descaling steel decks.  
PRODUCTIVITY 8  
SERVICE LIFE 10  
The pentagonal flail should be replaced when two successive  
3) Removing thick material build-ups of greases, paints, tungsten carbide inserts break off or the inside diameter  
oils, vegetable powders and some resins from floors.  
elongates to approximately 3/4 inch. In service, the flail  
body will wear much faster than the tungsten carbide inserts.  
The copper brazing used to weld the inserts into the body  
can fail and an insert break off.The flail can still be used in  
service. It will just wear a little faster and more uneven in  
4) Dried, fully cured, carpet and tile adhesive removal.  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
that particular area. As a general rule, a pentagonal flail Scarifier Block Bushing  
can be utilized until body wear will no longer support the Scarifier block bushings are designed to be discarded  
tungsten carbide inserts.  
whenever the flails are replaced. FIGURE 11. Normal wear  
should be uniform about the bushing circumference.  
Uneven bushing wear would suggest the following problems:  
SpacerWasher  
Spacer washers are stamped from high carbon steel and  
heat-treated for additional service life. FIGURE 10.  
Spacer washers serve the following functions:  
FIGURE 10  
1) Reduces the number of flails required to be mounted  
on the scarifier block, thus reducing purchase and  
operational costs.  
2) Arrange the flails in a sequence or pattern that minimize  
“blind” or “open” spots. Normally, at least one spacer  
washer is inserted between two consecutive flails. A  
scarifier block set up with only star, beam or pentagonal  
flails will not penetrate the work surface at satisfactory  
rates. This configuration will minimize the hammering  
or impact action of the flails.  
FIGURE 11  
1) Inadequate free play exists between the flails/spacer  
washers and the scarifier block case. If the flails and  
spacer washers do not have complete freedom of  
movement, they will not be capable of properly rotating  
about the scarifier block bushing.The result is bushing  
wear usually confined to two locations that are 180  
degrees apart. Variances in flail and spacer washer  
thicknesses affect free play when assembled on the  
scarifier block.  
Variances in material thickness and manufacturing  
processes can affect the final thickness of both flails and  
spacer washers. Because of this occurrence, trial and error  
is important for assembling flails and spacer washer on the  
scarifier block. By mixing and matching flails and spacer  
washers of specific thicknesses, the required number of  
components can be assembled on a block in a minimum  
amount of time.  
Because free play is also created during the scarifying  
process due to actual flail and spacer washer wear, a  
certain amount of “tightness” can sometimes be  
tolerated without affecting the service life of the  
bushings and flails.The specific amount of “tightness”  
can usually be determined through trial and error.If the  
flails and spacer washers appear too tight on the  
scarifier block, remove an appropriate flail or washer  
and reassemble the block. If a short, operational test  
indicates normal component wear patterns, the apparent  
problem has been solved. A general rule for  
consideration: it is better to have the flails and spacer  
washers a “little too loose than a little too tight”.  
DANGER  
USE ONLY FACTORY SUPPLIED SPACERWASHERS  
ONTHE SCARIFIER BLOCK. OTHERWASHERTYPES  
AND/OR CONFIGURATIONS CAN PRODUCE ABNOR-  
MAL WEAR AND ELONGATION, RESULTING IN  
COMPLETE SEPARATION FROM THE SCARIFIER  
BLOCK. INADVERTENT SPACERWASHER SEPARA-  
TION CAN LEADTO PROPERTY DAMAGE AND/OR  
PERSONAL INJURY.  
2) Mixing both worn and new flails on the scarifier block.  
Proper flail action against the work surface material  
requires that the flails be of the same approximate  
dimensions. Flails with various inside and outside  
dimensions will not impact the work surface material  
with the same intensity and deliver the same results.  
Flail bushing wear is directly proportional to the amount  
of force it must supply against each individual flail.When  
a bushing can no longer supply adequate force against  
the flails, it will break, allowing the flails to be hurdled  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
against the inside of the SURFACE GRINDER frame. Floor Brushes  
The more aggressive flails require greater forces to keep Eleven inch diameter, silicon carbide impregnated, floor  
them contained on the block. These forces, in turn, brushes are available in a number of styles and designs for  
create faster and/or uneven bushing wear rates.  
general maintenance and cleaning projects. FIGURE 14.  
They are especially effective cleaning soiled concrete floors  
with the addition of water soluble solvents. These types of  
brushes are directly mounted to the multi-accessory disc  
with the included 1/2 inch x 2 inch long Grade 5 capscrews.  
A kidney shaped drive plate is provided on the back side of  
the brush.This drive plate fits into a recess provided in the  
multi-accessory disc. FIGURE 15.  
Because scarifier bushings are a critical component of  
the actual scarifying process, it is important that each  
bushing be inspected on a regular basis to determine  
proper structural integrity.  
Wire brushes  
Typical applications include light scarifying and cleaning of  
concrete, asphalt, steel and tile surfaces. Wire brushes are  
secured to the machine with plastic wedges. FIGURE 12.  
FIGURE 14  
FIGURE 12  
Wire brushes are available in a number of flat wire sizes and  
resulting configurations.With continuous use, the flat wire will  
take asetthat can limit effectiveness and overall productivity.  
FIGURE 13. For best results, flat wire brushes should be rotated  
end for end in the aluminum multi-accessory disc a minimum  
of once for every one hour of operation. External weight applied  
to the SURFACE GRINDER will not normally increase  
productivity rates and only accelerate flat wire wear rates.  
FIGURE 15  
SCRAPE-R-TACH® Industrial Floor Coatings Removal  
System  
This multi-accessory attachment is designed to remove  
many urethanes, epoxies, paints, mastics and other, similar  
material accumulations from concrete floor surfaces.  
FIGURE 16. Each assembly utilizes two tungsten carbide  
inserts set at a precise angle.The rotating inserts “cut and  
shave” against the work surface material with a “scraping”  
action that removes materials with highly productive results.  
To increase the effectiveness of the inserts, the scraper  
block design incorporates a Lord® type rubber mount that  
helps absorb damaging shocks while allowing the inserts  
to more easily follow local variations in the surface contour.  
Units are secured to the machine with plastic wedges.  
FIGURE 13  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
shear from the concrete floor material. The occurrence is  
also aggravated by higher ambient temperatures. This  
problem can be significantly reduced with the addition of  
various amounts of water or a water saturated, fine sand  
combination placed on the floor.The use of the Safety and  
Dust Shield Assembly with the SURFACE GRINDER is  
highly recommended to contain the water/sand slurry mixture  
from damaging surrounding walls and other vertical surfaces.  
FIGURE 16  
The productivity of the product is directly dependent upon the  
yield and tensile strength of the material being removed.  
Material thickness has also shown to have a direct effect on  
overall productivity. For example, the SCRAPE-R-TACH  
system is a highly productive method for removing thick paint  
accumulations from factory floors. Production rates of up to  
several hundred square feet per hour can be realized.However,  
many thin film ( ie: 5 mill thickness and thinner) urethane  
coatings present a much more difficult removal problem. Since  
removal rates are also directly affected by applied down force,  
up to 300 lbs of external weight can be applied to the SURFACE  
GRINDER to increase productivity. Cement blocks, stacked  
bags of cement or weighted drums make excellent weights  
and can be secured with “bungy” cords. FIGURE 17.  
FIGURE 18  
To index the tungsten carbide insert, proceed as follows:  
Tools required:  
1 each, 5/32 Allen wrench.  
1) Clean the SCRAPE-R-TACH unit with a suitable safety  
solvent to remove excess material build-up. Remove  
as much foreign material from the female hexagon  
socket area of the capscrew.This will allow the wrench  
to make full contact and maximize the torque transfer  
to the cap screw.  
CAUTION  
Follow all safety precautions for the safety solvent.  
2) Remove the cap screw from the unit. Clean the newly  
exposed areas of the insert and SCRAPE-R-TACH unit  
with the safety solvent. Clean and inspect the threaded  
holes found in older units for excess wear. New style  
SCRAPE-R-TACH units feature a through hole design.  
FIGURE 17  
3) Index the insert to expose a new edge. Reinstall the  
capscrew and apply a torque value that properly seats  
the insert firmly against the body of the unit.  
Each insert provides 8 scraping edges.As an edge become  
dull and worn, the insert can be turned and reinstalled to  
expose a new, sharp edge. FIGURE 18. When all 4 edges  
of one side become worn and dull, the insert can be turned  
over to expose an additional 4 edges.  
Many materials such as adhesives, rubber deposits and  
mastics have the tendency to extrude or smear rather than  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
Multi-Segmented, Dry Diamond Disc  
CAUTION  
An insufficient seating torque value will allow the  
insert to become loose from the unit body, resulting  
in premature component wear and improper  
scraping action. An excessive torque value will strip  
the threads of the capscrew or unit body.  
Many times increased concrete removal rates can be  
achieved with the use of multi-segmented, dry diamond  
discs. FIGURE 21. These discs are designed to operate  
dry or can also be utilized with water. If the wet option is  
chosen, an external source for providing water must be  
devised. No provision for water use is provided with the  
SURFACE GRINDER. Typical discs are approximately 10  
inch diameter and feature up to 20 diamond segments that  
are welded or brazed to each assembly.  
4) Determine that the unit body is free to rotate about the  
5/16 inch diameter capscrew that retains the body to  
the unit. A body that does not freely rotate indicates  
that a material build-up exists between the rubber mount  
and retaining capscrew exits. This build-up must be  
removed by disassembling the body from the unit and  
cleaning all contact areas with the safety solvent.  
FIGURE 20.  
To install the multi-segmented, dry diamond disc, the  
standard, aluminum, multi-accessory disc is first removed  
from the SURFACE GRINDER. The diamond disc fastens  
directly to the gimbal head with 3/8 inch diameter x 1 inch  
long Allen head capscrews. FIGURE 22. The rear wheel  
assembly is then placed in the lowest position to  
compensate for the thickness variance of the diamond discs.  
FIGURE 23.  
The SCRAPE-R-TACH system is designed to be installed  
with the edge of the tungsten carbide inserts facing the  
direction of rotation. Markings are provided to indicate proper  
direction of rotation.  
FIGURE 21  
FIGURE 20  
CAUTION  
Installing the SCRAPE-R-TACH system with the  
tungsten carbide inserts facing opposite the  
rotation direction will not deliver satisfactory  
material removal rates and result in premature  
component wear requiring early replacement.  
FIGURE 22  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
INSTALLING A MULTI-ACCESSORY ATTACHMENT (not  
including multi-segmented, dry diamond discs) IN THE  
ROTATING DISC  
Tools Required:  
1 Small Hammer  
Parts Required:  
6 each, P/N 29019-017 Plastic Mounting Wedge  
DANGER  
WHEN INSTALLING A MULTI-ACCESSORY ATTACH-  
MENT ON THE SURFACE GRINDER ALWAYS WEAR  
THE APPROPRIATE SAFETY EYEWEAR AND AP-  
PARELTO MINIMIZETHE POTENTIAL FROM FLYING  
DEBRIS.FLYING DEBRIS CAN RESULT IN PROPERTY  
DAMAGE AND/OR PERSONAL INJURY.  
FIGURE 23  
1) Properly disconnect the extension cord or SURFACE  
GRINDER from the power source.  
Diamond Segment Block  
The diamond insert block is designed to compliment the  
multi-segmented diamond disc where a quick changeover  
feature to other attachments is desired.  
2) Tilt the SURFACE GRINDER back until the operator  
handle comes in contact with the surface. Appropriate  
wheel chocks are recommended. FIGURE 25.  
Diamond segments are retained into a steel block assembly  
and deliver up to 5 times greater productivity rates than the  
silicon carbide stones. FIGURE 24. The design resists  
clogging while delivering a conservative service life up to  
15 times longer than the stones. Diamond is the ideal choice  
for larger concrete removal projects and the removal of  
epoxies, paints and many thin film coatings.  
The concept is especially useful for removing a thin layer of  
concrete in final preparation for a new coating application. Can  
be used in both wet and dry job applications.Worn inserts are  
easily replaced in a matter of seconds. Service life is dependent  
upon many variables, but can approach 35,000 square feet  
per set, making it a cost efficient solution for many job  
applications.  
FIGURE 25  
3) Mount the multi-accessory attachment into the slots  
provided in the multi-accessory disc. If the attachment  
is directional in design, determine that its mounting  
position in the disc allows for proper operation.  
4) Force a MountingWedge P/N 229019-017 into the area  
between the multi-accessory attachment and the inside  
rib of the aluminum disc by hand. The straight side of  
the mounting wedge contacts the multi-accessory  
attachment. The angled side of the mounting wedge  
contacts the rib of the disc. FIGURE 26. An improper  
mounting configuration is depicted in FIGURE 27.  
FIGURE 24  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 20  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
5) Using a hammer, strike the wider side of the mounting  
wedge with controlled, direct blows to firmly seat the  
multi-accessory attachment into the aluminum disc.  
Usually one or two direct blows will be sufficient to  
properly retain the attachment.  
CAUTION  
Do not apply excessive impact force to the mounting  
wedge to cause splitting. Once the multi-accessory  
attachment is seated in the aluminum disc, further  
impact force on the wedge will not increase the  
seating force.  
FIGURE 26  
CAUTION  
Improper seating force created by an excessive blow  
to the mounting wedge will not allow the attachment  
to properly release from the aluminum disc if direct  
contact with a foreign object is made. Such  
occurrence can result in property damage and/or  
personal injury. The correct seating force for a  
specific job application is that which is sufficient to  
retain the attachment, yet still allows it to release  
from the aluminum disc when direct contact with a  
foreign object is made.  
6) Determine that the multi-accessory attachment is in  
full contact with the aluminum disc. If not in proper  
contact, refer to REMOVING A MULTI-ACCESSORY  
ATTACHMENT (not including multi-segmented, dry  
diamond blades) FROMTHE ROTATING DISC for proper  
removal procedures.  
FIGURE 27  
DANGER  
DO NOT OPERATETHE SURFACE GRINDERWITHTHE  
229019-017 MOUNTING WEDGES IN AN IMPROPER  
MOUNTING CONFIGURATION. MOUNTING AWEDGE  
BETWEEN THE MULTI-ACCESSORY ATTACHMENT  
ANDTHE OUTSIDE RIB OFTHE ALUMINUM DISC CAN  
ALLOWTHEWEDGETO COME IN DIRECT CONTACT  
WITH AVERTICALWALL AND/OR FLOOR OBSTRUC-  
TION. SUCH OCCURRENCE CAN RESULT IN LOSS  
OF MACHINE CONTROL, PROPERTY DAMAGE AND/  
OR PERSONAL INJURY.  
7) Return the SURFACE GRINDER to its normal operating  
position.  
8) If the machine is to be used immediately, reconnect  
the extension cord or SURFACE GRINDER to the power  
source. Determine that the ON/OFF switch located on  
the operator handle is in the OFF position.  
DANGER  
BEFORE OPERATINGTHE SURFACE GRINDERWITH  
ANY MULTI-ACCESSORY ATTACHMENT,DETERMINE  
THAT NO PORTION OF THE ATTACHMENT AND/OR  
MOUNTINGWEDGE EXTENDS BEYONDTHE NORMAL  
PERIMETER OFTHE ALUMINUM DISC.  
UNEXPECTED MACHINE START UP CAN RESULT IN  
PROPERTY DAMAGE AND/OR PERSONAL INJURY.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 21  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
REMOVING A MULTI-ACCESSORY ATTACHMENT (not 4) Return the SURFACE GRINDER to its normal operating  
including multi-segmented,dry diamond discs) FROMTHE  
ROTATING DISC  
position.  
5) If the machine is to be used immediately, reconnect  
the extension cord or SURFACE GRINDER from the  
power source. Determine that the ON/OFF switch located  
on the operator handle is in the OFF position.  
Tools Required:  
1 Small Hammer  
1 Drift Punch or Small Pry Bar  
DANGER  
DANGER  
WHEN REMOVING A MULTI-ACCESSORY ATTACH-  
MENT FROM THE SURFACE GRINDER, ALWAYS  
WEAR APPROPRIATE SAFETY EYEWEAR AND AP-  
PARELTO MINIMIZETHE POTENTIAL FROM FLYING  
DEBRIS. FLYING DEBRIS CAN RESULT IN PROP-  
ERTY DAMAGE AND/OR PERSONAL INJURY.  
UNEXPECTED MACHINE START UP CAN RESULT IN  
PROPERTY DAMAGE AND/OR PERSONAL INJURY.  
TRANSPORTINGTHE SURFACE GRINDER  
1) Disconnect the extension cord or SURFACE GRINDER  
from the power source.  
The SURFACE GRINDER has an operational weight that  
prohibits one person from loading and/or unloading it alone  
by conventional, physical efforts.  
2) Tilt the SURFACE GRINDER back until the operator  
handle comes in contact with the surface. Appropriate wheel  
chocks are recommended.  
DANGER  
3) The multi-accessory attachment can be removed by  
both the use of a drift punch or small, pry bar.If utilizing the  
drift punch, strike the narrow end of the mounting wedge  
with controlled, direct blows until the attachment is released  
from the aluminum disc. If utilizing the pry bar, position the  
bar between the aluminum disc and the attachment. Use  
controlled, direct blows to the bar in order to force the  
attachment loose from the aluminum disc. FIGURE 28.  
DO NOT ATTEMPTTO LIFTTHE SURFACE GRINDER  
UP INTO A TRANSPORTATION VEHICLE WITH THE  
USE OF ONE PERSON ALONE. DO NOT ATTEMPT  
TO LOWERTHE SURFACE GRINDER FROM ATRANS-  
PORTATION VEHICLE WITH THE USE OF ONE  
PERSON ALONE. LIFT AND/OR LOWER THE SUR-  
FACE GRINDER ONLY BY THE USE OF A POWER  
TAILGATE UNIT, A SUITABLE HOIST UNIT OF  
PROPER CAPACITY AND/OR CONFIGURATION OR  
BYTHE USE OF A PROPER QUANTITY OF PERSON-  
NEL IN PROPER PHYSICAL CONDITION.  
1) A lifting bail device can be used to facilitate lifting by a  
mechanical device incorporating a chain and suitable  
attachment device. The location of the lifting bail may  
not always locate the exact position of the center of  
gravity for the SURFACE GRINDER.Lifting handles are  
also provided on both sides of the transmission case.  
These handles can be utilized by personnel whenever  
lifting/lowering the SURFACE GRINDER or as  
attachment points for a chain sling whenever a suitable  
hoisting device is utilized. FIGURE 29.  
FIGURE 28  
CAUTION  
Do not utilize excessive force when removing a multi-  
accessory attachment with the pry bar. Excessive  
force can result in damage to the aluminum disc.  
Proper removal techniques by both methods will  
result in minimal damage to the aluminum disc.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 22  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
ADJUSTINGTHE OPERATOR HANDLE HEIGHT  
The SFG10E SURFACE GRINDER incorporates a handle  
that can be adjusted to compensate for variances in operator  
heights. Correct handle height can increase overall machine  
productivity and reduce operator fatigue.  
DANGER  
EXERCISE EXTREME CAUTIONWHEN UTILIZING A  
MECHANICAL DEVICE FOR LIFTINGTHE SURFACE  
GRINDER. UTILIZE THE MECHANICAL DEVICE IN  
ACCORDANCETO BOTH ITS STATED STATIC AND  
DYNAMIC LOADING ENVELOPES. DO NOT UTILIZE  
THE MECHANICAL DEVICE UNTILTHIS INFORMA-  
TION IS PROPERLY KNOWN AND UNDERSTOOD BY  
ALL APPLICABLE PERSONNEL.FAILURETO PROP-  
ERLY UTILIZE THE MECHANICAL DEVICE CAN  
RESULT IN PROPERTY DAMAGE AND/OR PER-  
SONAL INJURY.  
1) Loosen both knobs on the lower handle. FIGURE 30.  
2) Pull the top handle until the desired height is reached.  
3) Tighten both knobs on the lower handle.  
2) To minimize the possibility of damage to the  
SURFACE GRINDER, always transport in its normal,  
upright position. All equipment must be secured in/on  
vehicles with suitable strapping or tie-downs. Personnel  
should not be transported in the same compartment as  
equipment and fuel supplies. Consult applicable OSHA,  
AGA, CGA, etc. regulations for the proper transportation  
flammable gases.  
FIGURE 30  
STARTING THE SFG10E SURFACE GRINDER ON THE  
JOBSITE  
1) Position the SURFACE GRINDER on a flat and level  
surface of firm foundation.  
2) Determine that the ON/OFF switch located on the  
operator handle is in the OFF position.  
DANGER  
UNEXPECTED MACHINE START UP CAN RESULT IN  
PROPERTY DAMAGE AND/OR PERSONAL INJURY.  
FIGURE 29  
3) The motor is designed to operate from a clean, 20  
ampere, 115VAC, 60 Hz nominal power source.A clean  
power source refers to the amperage available on the  
individual electrical circuit selected. Additional electrical  
products already utilizing the same circuit will reduce  
the available amperage, resulting in starting and  
operational difficulties.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 23  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
CAUTION  
Operating the SURFACE GRINDER from a power  
source of improper voltage and amperage will result  
in un-repairable damage to the electric motor and  
related controls.  
DANGER  
PROPERLY INSPECT ALL EXTENSION CORDS AND  
WIRING DEVICES FOR STRUCTURAL INTEGRITY.DO  
NOT UTILIZE A CORDWITH AWORN OR CUT OUTER  
JACKET MATERIAL. DO NOT UTILIZE A CORDWITH  
EXPOSED INNER WIRES OR INSULATION MATE-  
RIAL. DO NOT UTILIZE A CORD THAT HAS BEEN  
REPAIREDWITH ELECTRICALTAPE. USE OF A AN  
EXTENSION CORD OF IMPROPER STRUCTURAL  
INTEGRITY CAN RESULT IN PROPERTY DAMAGE  
AND/OR PERSONAL INJURY.  
4) The motor is equipped with automatic thermal protection  
device that will stop it before major internal damage  
can result. After the motor has cooled to an acceptable  
temperature level, the switch must be manually  
activated to restart. FIGURE 32.  
DANGER  
ALL ELECTRICAL WIRING MUST BE INSTALLED  
AND/OR APPROVED IN ACCORDANCE TO LOCAL  
ELECTRICAL CODES AND PRACTICES. AN IM-  
PROPER WIRING INSTALLATION CAN RESULT IN  
PROPERTY DAMAGE AND/OR PERSONAL INJURY.  
5) Determine that the power outlet to be utilized is properly  
grounded.This can be accomplished with proper testing  
equipment and procedures. If there are any questions  
regarding the suitability of a specific power outlet,  
contact the Customer Service Department for  
assistance BEFORE utilizing the SURFACE GRINDER.  
There is no charge for this service. A qualified electrician  
can also be consulted. If a 115 VAC power outlet is  
selected, it is recommended that a properly tested,  
externally mounted, ground fault circuit interrupter  
(GFCI) be utilized at all times as an additional safety  
precaution. FIGURE 34.  
FIGURE 32  
To minimize the voltage drop to the motor, all extension  
cords should be copper stranded, 8 AWG or larger. A  
NEMA 6-20R twist-lock type receptacle is provided with  
the SFG10E SURFACE GRINDER as a standard  
accessory.The twist clock feature allows the extension  
cord to be pulled by the SURFACE GRINDER without  
becoming detached. Wire the NEMA 6-20R receptacle  
to the appropriate extension cord that will be coupled  
to the NEMA 6-20P plug provided on the SURFACE  
GRINDER. FIGURE 33.  
FIGURE 34  
FIGURE 33  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 24  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
OPERATING THE SURFACE GRINDER ON THE  
JOBSITE  
DANGER  
FOR MAXIMUM PROTECTION AGAINST A FAULT,  
ALWAYS CONFIGURETHE GROUND FAULT CIRCUIT  
INTERRUPTERTO BE PLUGGED INTOTHE EXTEN-  
SION CORD. A CONFIGURATIONWITHTHE GROUND  
FAULT CIRCUIT INTERRUPTER PLACED BETWEEN  
THE POWER SOURCE ANDTHE EXTENSION CORD  
WILL NOT AFFORD MAXIMUM PROTECTION  
AGAINST A POTENTIAL FAULT.  
DANGER  
THE GRINDING PROCESS PRODUCES EXCESSIVE  
NOISE, VIBRATION AND FLYING DEBRIS. ALL  
OPERATORS AND WORK PERSONNEL IN THE  
VICINITY OFTHE SURFACE GRINDER MUSTWEAR  
APPROPRIATE SAFETY EYEWEAR AND HEARING  
PROTECTION DEVICES. OTHER SAFETY APPAREL  
AND/OR PROCEDURES, DEEMED NECESSARY BY  
SUPERVISORY PERSONNEL MUST ALSO BEWORN  
AND/OR PRACTICED BY ALL APPROPRIATE  
PERSONNEL.  
6) Couple the NEMA 6-20R receptacle and the NEMA 6-  
20P plug together.  
7) Grasp the operator handle with firm gripping. When  
starting the electric motor, apply a down force directly  
to the operator handle to help reduce the amount of  
machine weight against the work surface.Turn the ON/  
OFF switch to the ON position. Reduce the amount of  
applied down force on the operator handle as the electric  
motor attains its operational speed.  
DANGER  
EXERCISE EXTREME CAUTIONWHEN OPERATING  
THE SURFACE GRINDER INTHEVICINITY OF DECK  
INSERTS, PIPES, COLUMNS, OPENINGS, LARGE  
CRACKS, UTILITY OUTLETS OR ANY OBJECT  
PROTRUDING FROMTHE SURFACE. CONTACTWITH  
SUCH OBJECTS CAN LEADTO LOSS OF MACHINE  
CONTROL, RESULTING IN PROPERTY DAMAGE  
AND/OR PERSONAL INJURY.  
When operating on 115 VAC, the electric motor will  
require additional starting time to help compensate for  
the additional starting amperage requirement.This time  
is usually within two seconds of activating the ON/OFF  
switch.  
8) The SFG10E SURFACE GRINDER is not equipped with  
a centrifugal clutch assembly. The electric motor is  
directly coupled to the multi-accessory disc by a V-  
belt/spur gear transmission.  
1) The SURFACE GRINDER incorporates a rotating disc  
for mounting a wide variety of multi-accessory  
attachments. Direct contact with a protruding  
obstruction from the floor can result in rapid and jerky  
directional movement of the machine. In most operating  
situations, direct contact with such an obstruction will  
result in the multi-accessory attachment becoming  
dislodged from the rotating disc. This occurrence is  
intended to protect the SURFACE GRINDER from  
excessive damage and allow the operator to remain in  
proper control of the machine.  
DANGER  
AS SOON ASTHE ELECTRIC MOTOR HAS STARTED,  
THE OPERATOR MUST BE IN A POSITION TO  
ASSUME DIRECT AND FULL CONTROL OF THE  
SURFACE GRINDER. FAILURETO ASSUME DIRECT  
AND FULL CONTROL CAN RESULT IN PROPERTY  
DAMAGE AND/OR PERSONAL INJURY.  
9) The SFG10E SURFACE GRINDER is stopped by  
moving the ON/OFF switch located on the operator  
handle to the OFF position. For safety considerations,  
it is also recommended that the extension cord be  
disconnected from both the SURFACE GRINDER and  
electric power source whenever the SURFACE  
GRINDER is not in use on the job site.  
DANGER  
ALWAYS MAINTAIN PROPER CONTROL OF THE  
SURFACE GRINDER.IF AN OPERATOR LOSES CON-  
TROL OF THE MACHINE, A “RUNAWAY” SURFACE  
GRINDER CAN RESULT IN PROPERTY DAMAGE  
AND/OR PERSONAL INJURY. BECAUSE OF THE  
UNIQUE OPERATING CHARACTERISTICS OF THE  
SURFACE GRINDER,THERE IS NO PROVISION FOR  
THE ELECTRIC MOTORTO AUTOMATICALLY STOP  
IF THE OPERATOR FAILS TO MAINTAIN PROPER  
CONTROL.  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
3) Proper operator posture and stance will enhance  
operational safety and overall productivity.FIGURE 38.  
For most job applications, operate the engine at  
maximum, governed speed. Consult the material  
supplied by the engine manufacturer and the  
SPECIFICATIONS section for specific information.  
DANGER  
WHEN OPERATING THE SURFACE GRINDER ON  
ABOVE GROUND FLOOR LEVELS, EXERCISE EX-  
TREME CAUTIONTO PREVENT LOSS OF CONTROL  
THAT COULD ALLOWTHE MACHINE AND/OR OPERA-  
TORTO FALL DOWNTO LOWER LEVELS. SUCH AN  
OCCURRENCE CAN RESULT IN PROPERTY DAMAGE  
AND/OR PERSONAL INJURY.  
4) The wide variety of potential work surface materials  
along with the corresponding variety of job site  
environments, makes it impossible to develop a  
standardized operating procedure for the SURFACE  
GRINDER.Use of the SURFACE GRINDER will require  
constant trial and error testing until satisfactory results  
are achieved. Experience gained over time and common  
sense will help minimize the amount of necessary  
testing. Many factors will directly affect the operating  
parameters and/or techniques utilized for a specialized  
job application. Some of these factors include:  
2) Productivity rates with the various multi-accessory  
attachments can be increased with the addition of  
external weight being applied to the area over the rotating  
disc. FIGURE 36. Maximum allowable external weight  
is 300 lbs. Exceeding this figure can result in permanent  
structural damage to the SURFACE GRINDER.  
Provisions for securing the weight by the means of  
strapping or other, appropriate methods is provided.  
a) Work surface material yield and tensile values. As  
a general rule, these values will determine material  
removal rate per unit of time. Materials with high  
yield and tensile values will characteristically resist/  
limit material penetration. For such materials, the  
accepted procedure is to make a number of multiple  
passes over the work surface rather than attempt  
to make a single, deep pass. The net effect is to  
actually increase productivity: more material  
removed in less time. Other added benefits to this  
technique are decreased vibration, less operator  
fatigue and increased component service life.  
FIGURE 36  
DANGER  
DO NOT OPERATETHE SURFACE GRINDER WITH-  
OUT ALL EXTERNALWEIGHT PROPERLY SECURED  
TOTHE MAIN FRAME.A SUDDEN CHANGE IN MOVE-  
MENT OR DIRECTION CAN ALLOW THE  
UNSECUREDWEIGHTTO FALL OFFTHE SURFACE  
GRINDER, RESULTING IN LOSS OF MACHINE CON-  
TROL, PROPERTY DAMAGE AND/OR PERSONAL  
INJURY.THIS PROCEDURE IS ESPECIALLY IMPOR-  
TANTWHEN OPERATINGTHE SURFACE GRINDER  
ON FLOORS AND/OR SURFACES ABOVE GROUND  
LEVEL.  
FIGURE 38  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 26  
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b. Higher material removal rates can sometimes be  
achieved by making a series of shallow passes 90  
degrees to each other to form a waffle like pattern.  
This technique is especially useful when removing  
deeper accumulations of rubber, paint, dirt debris,  
etc. from industrial floors.  
5) The grinding process on many work surface materials  
can produce sparks, dust and other foreign particle  
contamination.  
DANGER  
SPARKS PRODUCED BY THE ACTIONS OF MULTI-  
ACCESSORY OPTIONS AGAINST THE WORK  
SURFACE (FOR EXAMPLE: STRIKING ANCHOR  
BOLTS) MAY COME IN CONTACTWITH MATERIALS  
THAT CAN RESULT IN A FIRE AND/OR EXPLOSION.  
THIS OCCURRENCE CAN RESULT IN PROPERTY  
DAMAGE AND/OR PERSONAL INJURY.  
FIGURE 39  
DANGER  
ALWAYS UTILIZE AVACUUM SYSTEM DESIGNEDTO  
OPERATEWITHINTHE SPECIFIC JOB SITE REQUIRE-  
MENT. DUST MATERIAL CAN MEET CLASS II OR  
CLASS III SPECIFICATIONS OFTHE NATIONAL ELEC-  
TRIC CODE® FOR HAZARDOUS LOCATION  
CLASSIFICATIONS.CONSIDERATION MUST ALSO BE  
GIVEN TO THE CREATION OF HAZARDOUS TYPE  
MATERIALS REQUIRING SPECIFIC DISPOSAL PRO-  
CEDURES.DETERMINETHATTHEVACUUM SYSTEM  
IS PROPERLY DESIGNEDTO OPERATEWITHINTHESE  
ATMOSPHERES. CONSULT CURRENT NATIONAL  
ELECTRIC CODE®, OSHA AND ENVIRONMENTAL  
PROTECTION AGENCY REGULATIONS FOR SPECIFIC  
INFORMATION.  
DANGER  
THE CREATION OF DUST AND OTHER FOREIGN  
PARTICLE CONTAMINATION FROM THE  
OPERATIONAL PROCESS CAN RESULT IN  
PROPERTY DAMAGE AND/OR PERSONAL INJURY.  
FOR SUCH OPERATING CONDITIONS, ALWAYS  
WEAR A NIOSH/MSHA APPROVED DUST/MIST  
RESPIRATOR. CONSULT APPLICABLE OSHA  
REGULATIONS FOR SPECIFIC INFORMATION.  
6) Dust and other particle contamination can be controlled  
by the following methods:  
b) Water/sand slurry mixture applied directly to the  
work surface can be an effective method of  
reducing the effects of grinding and other material  
removal processes. This method can be a  
productive alternative when removing adhesives  
containing asbestos. A negative effect of this  
method is that the water/sand slurry mixture can  
be classified as a hazardous material, requiring  
proper disposal procedures.  
a) The SURFACE GRINDER is equipped with a 3 inch  
outside diameter vacuum tube adaptor located at  
the rear of the machine. An industrial type vacuum  
system and front shield assembly can be attached  
to the SURFACE GRINDER to remove/control dust  
and other particle contamination from the work  
surface. A hose clamp is sometimes required to  
properly secure the vacuum hose to the vacuum  
tube. FIGURE 39.  
7) Normal usage of the SURFACE GRINDER will allow  
the build-up and accumulation of work surface materials  
on interior surfaces. It is highly recommended that both  
the interior and exterior surfaces be properly cleaned  
after the completion of each usage.  
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OPERATIONAL PARAMETERS AND TECHNIQUES FOR  
THE SFG10E SURFACE GRINDER  
CAUTION  
Failure to properly clean the interior surfaces of the  
SURFACE GRINDER can result in dried material  
build-up and accumulation directly affecting bearing  
service life.  
Early Age Grinding  
Early age grinding is an alternative to floating and trowelling.  
It gets it name from the fact that the concrete is ground at  
an early age, after it has set but before it has gained much  
structural strength. The process usually involves the  
following steps:  
DANGER  
1) Normal screeding of the floor.  
EXERCISE EXTREME CAUTION WHEN UTILIZING  
ANY SOLVENTTO REMOVE ACCUMULATED MATE-  
RIALS FROMTHE SURFACES OFTHE MACHINE AND  
RELATED COMPONENTS. MANY SOLVENTS ARE  
FLAMMABLE. DO NOT SMOKE OR INTRODUCE  
FLAME INTHEWORK AREA. PROVIDE ADEQUATE  
VENTILATION AND WEAR PROPER SAFETY AP-  
PAREL.  
2) Smoothing the floor surface with a skip float.  
3) Cover the floor with polyethane sheeting.  
4) Removing the sheeting and grinding the floor down a  
uniform depth of approximately 1/32 inch within 24 to  
48 hours of the initial pouring.  
The C06 and C10 silicon carbide grinding stones are usually  
used for the process, although the multi segmented, dry  
diamond blades can be use as an alternative with  
substantially greater productivity rates.The main benefit of  
early age grinding is that it eliminates late work in cold  
weather.With ordinary finishing methods, a slab cast in the  
morning of a cold weather day might not get finished  
trowelled until very late at night. With grinding, the  
construction crew are able to leave the job at the end of a  
normal work day and return 1 or 2 days later to finish the  
job. Early age grinding may not reduce the total number of  
work hours, but it usually eliminates the need for work at  
overtime rates, which can substantially increase total project  
costs.  
DANGER  
PROPERLY DISPOSE OF ALL ACCUMULATED MA-  
TERIALS PER OSHA AND ENVIRONMENTAL  
PROTECTION AGENCY CODES AND REGULATIONS.  
MANY ACCUMULATED MATERIALS CAN BE CLAS-  
SIFIED AS HAZARDOUS AND REQUIRE PROPER  
DISPOSAL PROCEDURES. CONTACT THE APPLI-  
CABLE GOVERNMENT AND/OR PRIVATE AGENCIES  
FOR SPECIFIC INFORMATION.  
One side benefit of early age grinding is that the process  
demands less skill than conventional floating and trowelling.  
This makes it an attractive process where skilled crew  
personnel may not be available. It is also an excellent  
procedure for concrete floors that will be eventually covered  
by carpet or an applied coating.  
8) On job applications where the work process creates a  
considerable amount of loose material, it can become  
almost impossible to determine proper material removal  
depths and the extent of work already accomplished.  
The problem can be compounded if a vacuum system  
is not utilized. Loose material should be removed by  
sweeping or other, appropriate processes and the  
SURFACE GRINDER utilized until conditions again  
warrant removing the accumulated material.  
Definitions of floor flatness and levelness  
The terms flatness and levelness have poorly understood  
meanings in everyday speech, but have important  
distinctions in floor construction.  
STOPPINGTHE SFG10E SURFACE GRINDER  
Flatness is defined as planarity or lack of curvature. A more  
simple definition is that a flat floor is smooth and free of  
bumps and dips. An unflat floor is bumpy and wavy.  
Levelness is defined as horizontality or lack of slope. A  
level floor is horizontal. A floor that is unlevel is sloped or  
tilted.  
1) Stopping the SURFACE GRINDER is accomplished by  
moving the ON/OFF switch located on the operator  
handle to the OFF position. For safety considerations,  
it is also recommended that the extension cord be  
disconnected from both the SURFACE GRINDER and  
electric power source whenever the SURFACE  
GRINDER is not in use on the jobsite  
A floor can be flat, but still not level. Some floors are  
specifically designed to be unlevel; they can be intentionally  
sloped for drainage considerations. Very few, if any, floors  
are specifically designed to be unflat. Unfortunately, many  
turn out that way.Flatness and levelness are both desirable,  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 28  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
but have different implications for the floor user. Flatness is The F number system utilizes a pair of numbers to define  
critical where the user’s main concern is the behavior of surface regularity. The flatness number, Ff, is based upon  
wheeled type vehicles.Levelness is critical where the user’s the curvature over a horizontal distance of 24 inches. The  
main concern is with fixed structures such as shelving, levelness number, Fl, is based upon the floor slope over a  
racks and the placement of machine tools.  
horizontal distance of 10 feet. The standard test for F  
numbers is specified in ASTM E1155 and/or most recent  
Exceptions exist, but for most users, flatness is more version.  
important than levelness. The reasoning is that fixed  
equipment can be shimmed or adjusted to compensate. With both Ff and Fl, higher numbers mean greater surface  
However, it is not as easy to adapt a wheeled vehicle to a regularity. Though the scale ranges from zero to infinity,  
floor that is not flat enough to allow for proper action.  
almost all floors have F numbers between 10 and 100 for  
both flatness and levelness. Since the scale is linear, an  
Flatness and levelness also have different implications for Ff50 floor is exactly twice as flat as an Ff25 floor.  
the floor contractor. Flatness is determined mainly by  
finishing methods. Levelness is determined mainly by the Most F number specifications are written in a two tier format.  
side forms.  
The overall F numbers apply to the floor taken as a whole.  
The local F numbers apply to each individual slab and are  
usually only one half to two thirds the overall values.  
DefinedVersus RandomTraffic Patterns  
Floors are subject to two kinds of traffic patterns: defined  
and random. On a defined traffic floor, vehicle movement is  
confined to fixed paths. On a random traffic floor, vehicles  
are free to roam, though inevitably, some traffic patterns  
are used more than others.  
The overall F numbers are not just simple averages. ASTM  
E1155 covers how to combine F numbers.  
The two tier format encourages contractors to achieve good  
surface regularity while allowing for minor defects. The  
attempt is to pour the entire floor to the specified overall F  
numbers. If, for instance, the construction crew has a bad  
day and fails to meet the specified overall numbers for the  
slab, the slab can still be accepted provided it meets the  
specified local numbers.  
The distinction is important because the two kinds of traffic  
demand different methods of measuring surface regularity.  
On a defined traffic floor, a continuous (or nearly continuous)  
profile in each of the paths can be measured. But where  
traffic is random, the possible travel paths are infinite in  
number.What usually results is statistical sampling;selected  
points or lines are checked and assumed that they represent  
the whole floor surface.  
Such an occurrence serves as a warning to the crew that it  
must strive for a better performance on later slabs, so as to  
bring the overall F numbers up to the specified values. If a  
slab fails to meet even the specified local numbers, it must  
be repaired or replaced, but such failures seldom occur if  
all parties understand what is expected from the start.  
The highest degree of surface regularity is found among  
the defined traffic floors. Defined traffic floors allow the  
designer and contractor to focus on a limited number of  
critical areas.When a defined traffic floors is out of tolerance,  
it is relatively easy to identify the defects for correction—  
usually by employing a grinding process.  
Designers are not obligated to use this two tier format. Some  
designers specify a single F number pair (Ff and Fl) which  
applies to each individual slab. But this also raises the risk  
that slabs will be rejected.  
How to Define Surface Regularity  
Since the middle 1980s, new methods of defining surface  
regularity have been adopted as national standards. Older  
methods will continue to be utilized, although they are less  
effective. The following methods will be discussed:  
1) The F number system for random traffic floors  
FIGURE 40 depicts the overall and minimum F numbers  
for various floor classes.The floor classification is from the  
American Concrete Institute. Although the F number system  
is only a few years old, it offers these advantages:  
2) The TR 34 system for defined traffic floors  
a) The system controls both flatness and levelness.  
b) There is a standard test method.  
Both methods are not of equal value. For random traffic  
floors, F numbers provide the most complete and consistent  
system. For defined traffic floors, the TR34 system is  
superior.  
c) The system recognizes the statistical nature of profile  
testing on random traffic floors.  
d) The system is infinitely variable.  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
The Superflat category is intended for very narrow aisle  
warehouses where the highest standards are required.  
Category 1 is suggested for very narrow aisle warehouses  
where the vertical lift height is between 26 and 43 feet.  
Category 2 is for very narrow aisle warehouses where the  
vertical lift height is under 26 feet and the use of low rise,  
automatically controlled vehicles. No matter which category  
of surface regularity is specified, it is accomplished by  
measuring elevations on 12 inch centers.This is very similar  
to an F number survey, but with an important distinction. In  
an F number survey, the elevation profiles are made on the  
floor at random. With the TR 34 System, the survey  
measurements are made on the actual paths of the vehicles  
that will utilize the floor.  
FIGURE 40  
Improving the wear resistance of concrete floors by  
grinding with the SFG10E SURFACE GRINDER  
Poor wear resistance can often be traced back to a surface  
that is weaker than underlying levels of the pour. This  
occurrence can result from bad finishing techniques,  
improper curing or early freezing.  
One of the major limitations of the F number system is that  
it does not control the surface regularity at joints. Because  
joints are statistical anomalies, the standard test method  
forbids measurements within 24 inches. The designer  
specifying by F number has two methods to accommodate  
the problem.The first solution is to locate joints at locations  
where surface regularity is not important. The second  
solution is to design specifications for the joints themselves.  
Where surface weakness is a problem, grinding can be a  
solution.The process is similar to the early age technique.  
The grinding depth is typically 1/16 to 1/8 inch. A large  
project should not be attempted until a small test area has  
proven that the technique will produce the desired results.  
Usually only a square yard of floor is ground with the normal  
wear tests performed.  
TheTR 34 tolerances for defined traffic floors  
The TR 34 System divides defined traffic floors into three  
categories:  
Repair costs can be minimized by grinding only those floor  
areas that accommodate traffic. For example, in a pallet  
rack warehouse, it may be necessary to grind only the aisle  
areas and not under any of the racks.The grinding process  
can adversely affect the surface regularity. Where specific  
properties are important, it may be necessary to survey  
the floor during the grinding process to ensure that flatness  
and levelness specifications are maintained.  
a) Superflat  
b) Category 1  
c) Category 2  
For each category, the TR 34 System specifies limits for  
three properties:  
Cleaning concrete floors to improve the wear resistance  
with the SFG10E SURFACE GRINDER  
Property 1 is the difference in elevation between two points  
12 inches apart, measured in the direction of vehicle traffic.  
This is the levelness tolerance.  
Clean concrete floors have a longer service life than dirty,  
poorly maintained floors. Loose debris produces three-bodied  
wear by allowing particles to roll between the traffic and the  
floor surface. With some types of debris, especially when  
lodged in vehicle wheels, wear can be immediate and  
severe.  
Property 2 is the difference in slope over 24 inches  
measured in the direction of vehicle traffic. This is the  
flatness tolerance. It is identical as the 24 inch curvature  
utilized in the F number system.  
The SFG10E SURFACE GRINDER can be utilized with a  
number of multi accessories to clean and extend concrete  
floor service life. The SCRAPE-R-TACH® floor coatings  
removal system readily removes food, oil and rubber  
accumulations from high traffic floor areas. The Clean  
Sweep™ silicon impregnated, rotary brushes along with a  
biodegradable detergent applied to floors removes ground  
in dirt and debris from shop and industrial floors.Dry diamond  
segmented discs and blocks can be utilized to remove  
surface imperfections.  
Property 3 is the difference in elevation between opposite  
points in the left and right wheel path, measured  
perpendicular to the direction of vehicle traffic. As with  
Property 1, it is a levelness tolerance. The TR 34 System  
specifies different values for Property 3 depending upon  
whether the distance between left and right wheel paths is  
more or less than 5 nominal feet  
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ASSEMBLY INSTRUCTIONS/OPERATIONS  
CHECKINGV-BELTTENSION AND ALIGNMENT  
Maintenance/Service  
PREVENTATIVE MAINTENANCE CHECK LIST  
ProperV-belt tension and alignment are essential for smooth  
transmission of horsepower and extended service life.  
Improper tension and alignment will accelerateV-belt wear  
and contribute to decreased productivity. The V-belt is  
tensioned at the factory with the maximum recommended  
tension force. Check the belt tension at least two times  
during the first day of operation as there will normally be a  
rapid decrease in belt tension until it has been run in. Check  
the belt tension every eight hours of operation thereafter  
and maintain tension within the recommended range. The  
correct operating tension for a V-belt drive is the lowest  
tension at which it will not slip under peak load conditions.  
The normal operation of the SURFACE GRINDER produces  
extreme dirt and dust, along with levels of random vibration.  
Before operating the SURFACE GRINDER, the following  
service list should be accomplished.This list is for reference  
only and is not intended to be all inclusive. Other subject  
areas can be added at the discretion of the owner(s) and/or  
operator(s):  
1) Check all fasteners for proper torque values. If a fastener  
requires re-torquing, consult a torque chart for proper  
value. Properly discard and replace any worn fastener  
with a factory approved, replacement part.  
Tools Required:  
2) Check the V-belts for wear. Adjust or replace as  
necessary.Check pulleys for wear and proper alignment.  
Many loose materials created as a result of operating  
processes can be extremely abrasive.  
1 16 inch minimum length straightedge.  
1 10 lbs minimum capacity, tension scale or belt tension  
tool.  
3) Keep the SURFACE GRINDER clean. Wash the unit  
after each use. Determine that the interior sections of  
the frame are free of material build-ups. Such build-ups  
can restrict the operating process and present a potential  
safety hazard. Clean and remove any material build-up  
from the SURFACE GRINDER after each use.  
1) Disconnect the extension cord or SURFACE GRINDER  
from the power source.  
2) Position the SURFACE GRINDER on a suitable work  
bench with the V-belt approximately at waist level.  
3) Remove the belt guard from the main frame. Clean the  
inside of the belt guard with an appropriate solvent.  
Check for signs of wear and damage.  
4) Remove material accumulations from the exterior  
surfaces of the electric motor. The electric motor is a  
totally enclosed, fan cooled (TEFC) design. Keep the  
fan fins clear of material accumulations to enhance  
airflow over the motor exterior for cooling purposes.  
CAUTION  
Observe all applicable safety precautions for the  
solvent.  
DANGER  
DO NOT PERFORM PREVENTATIVE MAINTENANCE  
CHECKS WITH THE ELECTRIC MOTOR RUNNING.  
STOPTHE POWER SOURCE AND DISCONNECTTHE  
SPARK PLUG OR EXTENSION CORD BEFORE PER-  
FORMING ANY MAINTENANCE TO THE SURFACE  
GRINDER.TURNTHE ON/OFF SWITCHTOTHE OFF  
POSITION BEFORE RECONNECTING THE EXTEN-  
SION CORD. IMPROPER PROCEDURES CAN  
RESULT IN PROPERTY DAMAGE AND/OR PER-  
SONAL INJURY.  
4) Check the belt tension using the spring scale or belt  
tension tool midway between the engine clutch pulley  
and the transmission pulley. Belt tension should mea-  
sure approximately 0.22 inch at 3-1/4 to 4-3/8 lbs.  
measured force range. FIGURE 41. If tension is within  
specifications, proceed to Step 5. If tension is not within  
specifications, refer to INSTALLING A REPLACEMENT  
V-BELT for specific information.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 31  
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MAINTENANCE/SERVICE  
INSTALLING A REPLACEMENTV-BELT OR PULLEY  
Tools Required:  
2 1/2 wrenches.  
1 16 inch minimum length straightedge.  
1 10 lbs minimum capacity, tension scale or belt tension  
tool.  
1 belt tension tool.  
Parts Required:  
1 V-Belt, P/N SFB45  
1 Pulley Assy. P/N SFSG120400  
FIGURE 41  
5) Belt alignment is checked with the straightedge. Place  
the straightedge squarely against the transmission  
pulley. Properly aligned pulleys should also place the  
straightedge squarely against the motor pulley.Remove  
the straightedge and rotate the motor pulley 120  
degrees. FIGURE 42. Recheck alignment with the  
straightedge. Repeat the process until the motor pulley  
is rotated a full 360 degrees. Maximum allowable  
misalignment is + - 1/32 inch. If pulley alignment is not  
within specifications, refer to INSTALLING A  
REPLACEMENT V-BELT for specific information.  
6) Install the belt guard to the main frame. Determine that  
all safety related decals affixed to the belt guard are  
fully readable. If any decal is not fully readable, replace  
with a factory approved, replacement part only.  
1) Position the SURFACE GRINDER on a suitable work  
surface with the V-belt approximately at waist level.  
2) Remove the belt guard from the main frame. Clean the  
inside of the belt guard with an appropriate solvent.  
Check for signs of wear and damage. Secure in a proper  
storage area.  
CAUTION  
Observe all applicable safety precautions for the  
solvent.  
7) If the machine is to be used immediately, reconnect  
the extension cord or SURFACE GRINDER to the power  
source. Determine that the ON/OFF switch located on  
the operator handle is in the OFF position  
3) Using the 1/2-inch wrenches, loosen the motor mounting  
plate cap screws.  
4) With the same wrenches, rotate the motor take-up cap  
screws counterclockwise to loosen theV-belts and allow  
the electric motor to slide toward the front of the main  
frame. FIGURE 43.  
DANGER  
UNEXPECTED MACHINE START UP CAN RESULT IN  
PROPERTY DAMAGE AND/OR PERSONAL INJURY.  
FIGURE 42  
FIGURE 43  
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MAINTENANCE/SERVICE  
1) Disconnect the extension cord or SURFACE GRINDER  
from the power source.  
5) Remove the wornV-belt.Inspect the electric motor and  
transmission pulleys for wear and damage. Install the  
replacement belt, P/N SFB45.  
2) Position the SURFACE GRINDER on a suitable work  
bench with the multi-accessory disc at waist level  
a) Do not install replacement belt if the pulleys have  
excessively worn grooves. Such pulleys should be  
replaced to insure proper belt fit. Operating the V-  
belt in worn pulley grooves will accelerate wear, 3) Remove the belt guard from the main frame. Clean the  
reduce horsepower and torque levels and  
significantly reduce component service life.  
inside of the belt guard with an appropriate safety  
solvent. Check for signs of wear and damage. Secure  
in a proper storage area.  
b) AV-belt should never be forced over a pulley.More  
belts are broken from this cause than from actual  
failure in service.  
CAUTION  
c) Keep the belt as clean and free of foreign material  
as possible. Do not use belt dressing  
Observe all applicable safety precautions for the  
solvent.  
6) Rotate the take-up cap screws clockwise until the V-  
belt has enough tension to not allow it to fall off the  
pulleys.  
4) Tilt the SURFACE GRINDER back until the operator  
handle comes in contact with the surface. Appropriate  
wheel chocks are recommended.  
REPLACINGTHE LORD®TYPE ELASTOMERIC MOUNTS  
ONTHE MULTI-ACCESSORY DISC  
Lord® type elastomeric rubber mounts are utilized to allow  
each multi-accessory disc to maintain full contact with the  
work surface.The rubber mounts afford a constant flex rate  
for the multi-accessory disc throughout its service life.The  
rubber compound is resistive to the effects of ultraviolet  
radiation and most common chemicals encountered when  
operating the SURFACE GRINDER .  
5) Utilizing the Allen wrench, remove the affected  
aluminum multi-accessory disc (if still attached) from  
the SURFACE GRINDER.  
6) Utilizing the 9/16-inch wrenches, remove the cap screws  
that retain the Lord® rubber mounts to both the mounting  
plate and transmission shaft.  
During the manufacturing process, the rubber mounts are  
pressed into specially machined cavities in the disc  
mounting plate. Under normal usage and job applications,  
the Lord® type rubber mounts will deliver appropriate  
performance for the expected service life of the SURFACE  
GRINDER. However, an attachment mounted in the multi-  
accessory disc that directly strikes a vertical floor  
obstruction with sufficient impact force can cause one or  
more of the mounts to become separated from the mounting  
plate. This occurrence will not allow the multi-accessory  
disc to maintain full contact with the work surface. This  
occurrence is also intended to protect the transmission gears  
and bearings from costly damage and the operator from an  
impact force that could cause personal injury.  
7) Inspect the appropriate cavities in the mounting plate  
for wear and damage. Any nick or burr must be removed  
by the use of an appropriate file, followed by the use of  
240 grit sandpaper.  
8) Apply the installation lubricant to the exterior surface  
of the elastomeric mount to minimize damage when  
pressing into the mounting disc. If the factory supplied  
lubricant is not available, an acceptable alternative is  
the use of common liquid soap.  
Tools Required:  
1 each, 5/16 allen wrench.  
2 each, 5/8 wrenches.  
1 each, arbor press of sufficient capacity and stability.  
Parts Required:  
Elastomeric Mount, P/N SFJ62502 (as required).  
1 container each: Installation Lubricant (or approved  
equivalent).  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 33  
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MAINTENANCE/SERVICE  
LUBRICATION REQUIREMENTS  
CAUTION  
Parts Required:  
Do not install an elastomeric mount without the use  
of an approved lubricant. Installation without an  
approved lubricant can produce tears in the mount,  
resulting in substandard operational performance  
and service life.  
1 each, standard grease gun filled with one of the following:  
ESSO Beacon 325, Shell Alvania #2, Chevron SRI, or  
equivalent.  
1 each, container of dry film lubricant.  
9) Support the elastomeric mount, socket and mounting  
plate as depicted in FIGURE 50. The mounting plate  
must be suspended from the arbor press to allow the  
mount to clear when the pressing process is completed.  
A short section of 1-1/2 inch inside diameter steel tubing  
can be utilized for this purpose. Using the arbor press,  
apply a steady force in a straight line direction to the  
mount until it fully penetrates the cavity in the mounting  
disc. Do not attempt to push the elastomeric mount  
through the mounting disc with excessive force.  
Damage to the elastomeric mount will result.  
1) Lubricate the caster wheel bearings with a dry film  
lubricant only.Dry film lubricants dry immediately upon  
contact. Use sparingly.Excess lubricant will attract the  
fine grained, powdered materials described and directly  
affect bearing service life.  
CAUTION  
Do not lubricate the caster wheels with any type of  
grease material. Grease will attract foreign material  
accumulations that can accelerate bearing wear.  
10) Reassemble the mounting disc to the transmission shaft.  
11) Reassemble the mounting plate to the mounting disc.  
2) The transmission gears are supported by extra capacity,  
ball bearing units. Bearings are lubricated at the time of  
manufacture and do not require additional servicing  
when placing the unit in initial service. Zerk grease  
fittings can promote improper service schedules and  
an excessive amount of over lubrication. Excess  
grease escaping from around the bearing insert seals  
will attract foreign material accumulations that can  
drastically shorten their service life.Excessive amounts  
of grease in the bearing race cavity can actually  
increase friction and resulting heat increases that can  
also dramatically shorten bearing service life.  
12) Reassemble the aluminum multi-accessory disc to the  
mounting plate.  
13) Check to determine that the replacement elastomeric  
mounts allow for proper position of the aluminum multi-  
accessory disc. If the elastomeric mounts are not  
properly positioned, they will require removal and  
reinstallation.The removal process can produce tears  
and abrasions in the mount that will require new  
replacements.  
FIGURE 50  
FIGURE 51. LUBRICATION POINTS  
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MAINTENANCE/SERVICE  
3) The transmission gears are lubricated at the time of  
assembly with approximately 24 ounces of Lubricate  
GR132 grease or equivalent.This lubricant has an EP  
additive to better allow it to cling to the gears. The  
transmission should not require additional lubrication  
or the lubrication to be changed until service work to  
the gears is performed. FIGURE 51.  
4) Standard greasing intervals will range from once every  
8 hour work day to approximately once every work week.  
Always maintain sufficient grease around the  
circumference of the bearing insert to provide its self-  
aligning feature and prevent the formation of corrosion.  
5) Do not apply belt dressing materials to the V-belts for  
the purpose of minimizing slippage. These products  
typically attract foreign material accumulations that can  
accelerate component wear.ExcessiveV-belt slippage  
can be eliminated with proper V-belt tension and  
alignment.  
ELECTRIC MOTOR SERVICE  
The electric motor is capable of operating for many years  
with a reasonably small amount of maintenance. Before  
attempting to service the motor, disconnect the SURFACE  
GRINDER from the power source. Clean the motor surfaces  
periodically, preferably with a vacuum cleaner. Heavy  
accumulations of dirt and lint will result in overheating and  
premature failure of the motor.  
The electric motor is equipped with higher capacity ball  
bearings and under normal service and ambient temperatures  
should not require relubrication for many years. If you feel  
that the motor requires relubrication, contact the local  
representative of the motor manufacturer for specific  
information.  
The seals utilized with the motor are intended to deliver a  
longer service life in a concrete dust environment. When  
replacing the seals, utilize only components meeting the  
original factory specifications.  
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TROUBLESHOOTING  
Worn or damaged gimbal head Lord® rubber mounts.  
Replace mounts.  
Troubleshooting  
ELECTRIC MOTOR  
Accumulation of foreign material on the multi-accessory  
attachment. Clean and/or replace the attachment  
components as necessary.  
MOTOR FAILSTO START  
ON/OFF switch in the OFF position. Turn the switch to the  
ON position.  
Flails and spacer washers are mounted too tight on the  
scarifier frame. Remove and/or replace flails and spacer  
washers. See MULTI-ACCESSORY ATTACHMENTS AND  
APPLICATIONS.  
SURFACE GRINDER and/or extension cord is not plugged  
into the power source. Determine that all electrical  
connections have been properly made. The NEMA 6-20  
Series cap and receptacle set is of a twist lock configuration  
and requires a twist motion to ensure a proper connection.  
EXCESSIVE JUMPING ONTHEWORK SURFACE  
Incorrect installation of the attachment in the aluminum  
rotating disc. See INSTALLING A MULTI- ACCESSORY  
ATTACHMENT ONTHE ROTATING DISC.  
Improper extension cord size and capacity. Operate the  
SURFACE GRINDER with copper stranded, 8 AWG or larger  
extension cords. Improper extension cord size and capacity  
will result in significant heat rise and corresponding voltage  
and amperage drop.  
Worn or damaged gimbal head Lord® rubber mounts.  
Replace mounts.  
Loose gimbal head fasteners. Retorque fasteners as  
required.  
Thermal protection device activated. To protect the motor  
against heat related damage, an automatic thermal protection  
switch is provided near the voltage selection switch. High  
operating temperatures will activate the switch and shut the  
motor off. After the motor has cooled to an acceptable  
temperature level,depress the switch to restart.  
ACCELERATEDV-BELTWEAR  
Misaligned and/or improperly tensioned pulleys. Readjust  
pulleys and V-belt. See SERVICE section.  
Worn pulleys.Replace pulleys as required.See INSTALLING  
A REPLACEMENT V-BELT OR PULLEY.  
ELECTRIC MOTOR LOSES POWER  
Improper V-belt. Replace with a name brand B45 series V-  
belt. See INSTALLING A REPLACEMENT V-BELT OR  
PULLEY.  
Improper extension cord size and capacity. Replace with  
cords meeting the required specifications.  
Excessive extension cord length. Even with proper  
extension cord size and capacity, excessive cord length  
can reduce the available voltage and amperage to the motor.  
Measure the available voltage to the motor where the  
extension cord connects to the SURFACE GRINDER with a  
voltmeter.Reduce the extension cored length as required to  
achieve the minimum voltage operating specification as  
required by the motor manufacturer.  
ACCELERATED BEARINGWEAR AND/OR FAILURE  
Misaligned and/or improperly tensioned pulleys. Readjust  
pulleys and V-belt. See SERVICE section.  
Bent transmission input or output shaft. Replace affected  
shaft(s).  
Improper lubrication.See LUBRICATION REQUIREMENTS.  
UNEVEN GRINDING ACTION  
Excessive material build-up on the caster wheel face  
surface. Remove the material.  
Insufficient available voltage and amperage at the power  
source. Measure the available voltage at the power source  
(usually a receptacle) with a voltmeter.If the available voltage  
is below the minimum operating specification as required by  
the motor manufacturer, utilize an alternative power source.  
Excessive caster wheel bearing wear. Replace the caster  
wheel. Excessive axle wear. Replace axle.  
Improper motor cooling. See ELECTRIC MOTOR SERVICE.  
Flails and/or spacer washers are mounted too tight on the  
scarifier frame. Remove and/or replace flails and spacer  
washers. See MULTI ACCESSORY ATTACHMENTS AND  
APPLICATIONS.  
Excessive load to the motor. See OPERATING THE  
SURFACE GRINDER ONTHE JOBSITE.  
Mixing new and worn flails, silicon carbide stones, etc.  
Remove and replace with components of the same,  
approximate size and diameter. See MULTI ACCESSORY  
ATTACHMENTS AND APPLICATIONS.  
OPERATIONAL PROBLEMS  
UNEVEN MULTI-ACCESSORY ATTACHMENTWEAR  
Incorrect installation of the attachment in the aluminum disc.  
See INSTALLING A MULTI-ACCESSORY ATTACHMENT  
ONTHE ROTATING DISC.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 36  
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STORAGE  
Storage  
Proper procedure for long term storage of the SURFACE  
GRINDER will protect it against the effects of corrosion  
and damage. If the SURFACE GRINDER is not to be  
operated for a period of 30 days or more, proceed to store  
as follows:  
1) Clean all accumulated foreign material from the  
SURFACE GRINDER utilizing an appropriate  
safety solvent.  
CAUTION  
Observe all applicable safety precautions for the  
solvent.  
2) Check all visible parts for wear, breakage or damage.  
Order any part not required to make the necessary  
repair.This will avoid a needless delay when operating  
the SURFACE GRINDER at next use.  
3) Apply a dry film lubricant to all exposed metal  
components to prevent the formation of rust.  
4) Store the SURFACE GRINDER inside.If the SURFACE  
GRINDER must be stored outside, protect it with a  
suitable covering.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 37  
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SPECIFICATIONS  
Specifications  
STRUCTURE ................................................................... Unitized, Welded Steel Plate  
DRIVE REDUCTION SYSTEM ........................................ B45 Series Belt/Pulley/Spur Gear transmission.  
MAXIMUM GRINDING WIDTH ........................................ 10 inches (254 mm)  
OVERALL MACHINEWIDTH ........................................... 27-1/2 inches (699 mm)  
OVERALL MACHINE LENGTH ........................................ 55.25 inches (1,403 mm)  
TYPICAL OPERATOR HANDLE HEIGHT ........................ 38 inches (965 mm)  
VACUUM CLEANER CONNECTION DIAMETER ............. 3 inches (76 mm)  
BASIC WEIGHT .............................................................. 235 lbs (107 kg)  
SFG10E ELECTRIC MOTOR, 1.5 hp, 1725 RPM, 13.7 amperes @ 115VAC, 60 Hz.The electric motor requires a clean  
(no other electric products on the same circuit) 20 ampere capacity circuit to properly function on 115 VAC, 60 Hz.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 38  
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NOTE PAGE  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 39  
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EXPLANATION OF CODE IN REMARKS COLUMN  
The following section explains the different symbols and  
QTY. Column  
remarks used in the Parts section of this manual. Use the help  
numbers found on the back page of the manual if there are any  
questions.  
Numbers Used - Item quantity can be indicated by a  
number, a blank entry, or A/R.  
A/R (As Required) is generally used for hoses or other parts  
that are sold in bulk and cut to length.  
The contents and part numbers listed in the parts section are  
subject to change without notice. Multiquip does not  
guarantee the availibility of the parts listed.  
A blank entry generally indicates that the item is not sold  
separately. Other entries will be clarified in the “Remarks”  
Column.  
REMARKS Column  
Sample Parts List:  
Some of the most common notes found in the “Remarks”  
Column are listed below.Other additional notes needed to  
describe the item can also be shown.  
NO. PART NO. PART NAME  
QTY. REMARKS  
1
2
2
3
4
12345  
BOLT ...................... 1 ......INCLUDES ITEMS W/  
WASHER, 1/4 IN. .............NOT SOLD SEPARATELY  
WASHER, 3/8 IN. ... 1 ......MQ-45T ONLY  
HOSE ................... A/R ....MAKE LOCALLY  
BEARING ............... 1 ......S/N 2345B AND ABOVE  
*
*
*
12347  
12348  
12349  
Assembly/Kit - All items on the parts list with the same  
unique symbol will be included when this item is purchased.  
Indicated by:  
“INCLUDES ITEMS W/(unique symbol)”  
NO. Column  
Unique Symbols - All items with same unique symbol  
Serial Number Break - Used to list an effective serial  
number range where a particular part is used.  
( , #,  
+
, %, or >) in the number column belong to the same  
*
assembly or kit, which is indicated by a note in the “Remarks”  
column.  
Indicated by:  
“S/N XXXXX AND BELOW”  
“S/N XXXX AND ABOVE”  
“S/N XXXXTO S/N XXX”  
Duplicate Item Numbers - Duplicate numbers indicate  
multiple part numbers are in effect for the same general  
item, such as different size saw blade guards in use or a  
part that has been updated on newer versions of the same  
machine.  
Specific Model Number Use - Indicates that the part is  
used only with the specific model number or model number  
variant listed. It can also be used to show a part is NOT  
used on a specific model or model number variant.  
When ordering a part that has more than one  
item number listed, check the remarks column  
for help in determining the proper part to order.  
Indicated by:  
“XXXXX ONLY”  
“NOT USED ON XXXX”  
“Make/Obtain Locally” - Indicates that the part can be  
purchased at any hardware shop or made out of available  
items. Examples include battery cables, shims, and certain  
washers and nuts.  
PART NO. Column  
Numbers Used - Part numbers can be indicated by a  
number, a blank entry, orTBD.  
“Not Sold Separately” - Indicates that an item cannot be  
purchased as a separate item and is either part of an  
assembly/kit that can be purchased, or is not available for  
sale through Multiquip.  
TBD (To Be Determined) is generally used to show a part  
that has not been assigned a formal part number at time of  
publication.  
A blank entry generally indicates that the item is not sold  
separately or is not sold by Multiquip. Other entries will be  
clarified in the “Remarks” Column.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 40  
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SUGGESTED SPARE PARTS  
SFG10E SURFACE GRINDER 1 TO 3 UNITS  
Qty.  
P/N  
Description  
1 ............ SF3100081 .............. CABLE, THROTTLE  
1 ............ SFSG120330 ........... SWITCH, 115V  
2 ............ SFB45 ...................... V-BELT, TRANSMISSION  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 41  
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OPERATOR HANDLE ASSY.  
OPERATOR HANDLE ASSY.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 42  
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OPERATOR HANDLE ASSY.  
OPERATOR HANDLE ASSY.  
NO. PART NO.  
PART NAME  
QTY.  
1
1
1
1
2
1
2
REMARKS  
1
SFSG120180  
SFSG120110  
SF3100030  
SFSG120415  
SFSG120280  
SFSG120190  
SF6600900  
HANDLE, LOWER  
2
3
4
HANDLE, TOP  
THROTTLE, TWIST CONTROL, PLASTIC, COMPL.  
GRIP, 7/8", BLACK  
CLAMP, HOSE  
COVER, SWITCH  
5
6
7
MOUNT, RUBBER  
8
9
SFWS277  
ASSEMBLY, SWIVEL  
SPRING, COMPRESSION  
GROMMET  
E-CLIP, 7/32" EXTERNAL  
CABLE, THROTTLE  
SWITCH, 115V  
1
1
1
1
1
1
2
SFSG120350  
SFCS160300  
SFSG120340  
SF3100081  
SFSG120330  
SFSG120050  
SF37041300  
10  
11  
12  
13  
14  
15  
KNOB ASSY  
SCREW, MACHINE, PAN HEAD PHILLIPS,  
1/4-20 UNC X 1-5/8", PLATED  
CAM, SWITCH  
TUBE, PIVOT  
LEVER, SWITCH  
5
1
1
1
2
2
5
5
1
3
1
1
1
2
2
4
2
2
2
2
2
4
4
2
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
SFSG120170  
SFSG120150  
SFSG120160  
SFSG120380  
SF17060000  
SF16040000  
SF90040000  
SFCS161000  
SFWIRE NUT Y  
SFSG120260  
SFSG120270  
SFHUB4720C  
SFCS160210  
SF62081400  
SFCS160340  
SF86060000  
SFCG5050  
SCREW, WOOD, FLAT HEAD PHILLIPS, #12 X 7/8"  
WASHER, FLAT, 3/8", PLATED  
WASHER, LOCK, 1/4", PLATED  
NUT, ACRON, 1/4-20 UNC, PLATED  
EXTENSION CORD, GFCI  
NUT, WIRE, YELLOW  
CABLE, SWITCH TO PLUG  
CABLE, SWITCHTO MOTOR  
PLUG, TWIST LOCK, MALE, 15A  
PIN WITH LANYARD  
BOLT, SHOULDER, 1/2" X 1-3/4"  
BUSHING, BRONZE, 1/2" ID  
NUT, HEXAGON, FLANGE, 3/8-16 UNC, PLATED  
RELIEF, STRAIN  
NUT, BULKHEAD (INCLUDED WITH ITEM 32)  
SCREW, CAP, 3/8-16 UNC X 1", PLATED  
WASHER, LOCK, 3/8", PLATED  
SCREW, CAP, 5/16-18 UNC X 1/2", PLATED  
WASHER, LOCK, 5/16", PLATED  
RING, KICK OUT  
SF801  
SF15060800  
SF16060000  
SF15050400  
SF16050000  
KIC172  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 43  
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ELECTRIC MOTOR ASSY.  
ELECTRIC MOTOR ASSY.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 44  
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ELECTRIC MOTOR ASSY.  
ELECTRIC MOTOR ASSY.  
NO.  
1
2
3
4
PART NO.  
PART NAME  
QTY.  
REMARKS  
SFSG120030  
SFSG120250  
SFCG5050  
SF801  
MOTOR, ELECTRIC, 1-1/2 HP, 115 VAC  
MOUNT, ELECTRIC MOTOR  
RELIEF, STRAIN  
1
1
1
NUT, BULKHEAD (INCLUDED WITH ITEM 3) ............................................. REFERENCE  
5
6
SFSG120400  
SF31050600  
PULLEY  
1
SCREW, SET, CUP POINT, 5/16-18 UNC X 3/8"  
(INCLUDED WITH ITEM 5)  
KEY, SQUARE, 3/16" X 3/16" X 1"  
SCREW, CAP, 3/8-16 UNC X 3-1/2", FULL THREAD, PLATED  
WASHER, FLAT, 3/8", PLATED  
WASHER, LOCK, 3/8", PLATED  
NUT, HEXAGON, 3/8-16 UNC, PLATED  
WASHER, FLAT, 1/4", PLATED  
NUT, HEXAGON, NYLOC, 5/16-18 UNC, PLATED  
SCREW, CAP, 5/16-18 UNC X 1", PLATED  
BELT, V TYPE  
1
1
2
6
4
6
4
4
4
1
7
8
9
10  
11  
12  
13  
14  
15  
SF63030800  
SFCS80470  
SF17060000  
SF16060000  
SF18060000  
SF17040000  
SF53050000  
SF15050800  
SFB45  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 45  
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WHEEL DOLLY ASSY.  
WHEEL DOLLY ASSY.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 46  
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WHEEL DOLLY ASSY.  
WHEEL DOLLY ASSY.  
NO.  
1
2
3
4
5
6
7
8
PART NO.  
PART NAME  
QTY.  
REMARKS  
SFSG240190  
SFSG240260  
SFSG120370  
SF62121200  
SF17120000  
SF22022400  
SF20031200  
SF15081000  
SF16080000  
SF6600410  
ARM, SWING  
2
2
2
2
2
2
2
2
2
2
2
2
1
WHEEL  
SCRAPER, WHEEL  
BOLT, SHOULDER, 3/4-10 UNC X 1-1/2"  
WASHER, FLAT, 3/4", PLATED  
PIN, COTTER, 5/32" X 1-1/2", PLATED  
PIN, ROLL, 3/16" X 1-1/4", PLATED  
SCREW, CAP, 1/2-13 UNC X 1-1/4", PLATED  
WASHER, LOCK, 1/2", PLATED  
BEARING, OILITE  
WASHER, FLAT, 5/8", PLATED  
NUT, HEXAGON, 5/8-11 UNC, PLATED  
AXLE, PLATED  
9
10  
11  
12  
13  
SF17100000  
SF18100000  
SFSG120200  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 47  
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FRAME ASSY.  
FRAME ASSY.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 48  
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FRAME ASSY.  
FRAME ASSY.  
NO. PART NO.  
PART NAME  
QTY.  
1
1
1
1
2
2
1
1
REMARKS  
1
2
3
4
5
6
7
8
9
SFSG120010  
SFSG120360  
SFSG120020  
SFSG120410  
SF91060600  
SF34061600  
SFSG240140  
SFSG240130  
SFSG240120  
FRAME, MAIN  
WEIGHT  
COVER, BELT  
PULLEY  
SCREW, THUMB, 3/8-16 UNC X 3/4", PLATED  
SCREW, MACHINE, ROUND HEAD, 3/8-16 UNC X 2", PLATED  
DISC, MULTI-ACCESSORY, LH  
BAR, MOUNTING  
DISC, MOUNTING  
1
10 SFSG120240  
11 SFHSF20516G  
12 SF516098  
13 SFSG120130  
14 SF18060000  
15 SF16060000  
16 SF31050600  
SHAFT  
BEARING  
RING, SNAP  
1
2
2
2
8
8
CONNECTOR, GREASE, 1/4-28 UNF  
NUT, HEXAGON, 3/8-16 UNC, PLATED  
WASHER, LOCK, 3/8", PLATED  
SCREW, SET, CUP POINT, 5/16-18 UNC X 3/8"  
(INCLUDED WITH ITEM 4)  
KEY, SQUARE, 1/4" X 1/4" X 1-1/2"  
NUT, HEXAGON, LOCKING, 7/16-14 UNC, PLATED  
MOUNT, RUBBER  
SCREW, CAP, 1/16-14 UNC X 2", PLATED  
SCREW, SOCKET, 3/8-16 UNC X 1-1/2", PLATED  
SCREW, COUNTERSUNK, 7/16-14 UNC X 2-1/4"  
FITTING, GREASE, STRAIGHT  
CONNECTOR, GREASE, 1/8 PIPE  
HOSE, GREASE, 5/32", CLEAR (13" LENGTH)  
1
1
6
6
3
4
3
2
2
2
17 SF63041200  
18 SF53070000  
19 SFJ62502  
20 SF15071600  
21 SF60061200  
22 SF27071800  
23 SFSP80590  
24 SFSG120120  
25 SFSG120140  
26 SF6600560  
TIE, NYLON, 6" LONG  
1
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 49  
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SAFETY AND DUST SHIELD ASSY.  
SAFETY AND DUST SHIELD ASSY.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 50  
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SAFETY AND DUST SHIELD ASSY.  
SAFETY AND DUST SHIELD ASSY.  
NO.  
1#  
2#  
3#  
4#  
5#  
6#  
7#  
8#  
9
PART NO.  
PART NAME  
QTY.  
REMARKS  
SFSG120230  
SFSG120220  
SFSG120060  
SF56480000  
SFSG120040  
SF53050000  
SF15050700  
SF61040800  
SFSG121000  
SKIRT ASSY  
1
1
1
2
2
4
4
7
BUMPER, RUBBER  
HOSE, VACUUM  
CLAMP, HOSE, 3"  
STRAP, SKIRT  
NUT, HEXAGON, NYLOC, 5/16-18 UNC, PLATED  
SCREW, CAP, 5/16-18 UNC X 7/8", PLATED  
SCREW, COUNTERSUNK, 1/4-20 UNC X 1", PLATED  
SAFETY AND DUST SHIELD ASSY. KIT ....................... 1 .......... INCLUDES ITEMS W/#  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 51  
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SCARIFIER ASSY.  
SCARIFIER ASSY.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 52  
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SCARIFIER ASSY.  
SCARIFIER ASSY.  
NO.  
1
2
3
4
5
5
5
6
PART NO.  
PART NAME  
QTY.  
REMARKS  
SSG241900012 HOUSING  
1
2
2
29018-083  
87052000  
29019-013  
29019-010  
29019-011  
29019-012  
08233-006  
29019-017  
BUSHING  
BOLT CARRIAGE 3/8"-16 UNC X 2-1/2 UNC, PLATED  
WASHER, FLAT 5/8", HEAT TREATED ........................... 12 .......... SEE NOTE 1  
FAIL, STAR HEAT TREATED STEEL .............................. 12 .......... SEE NOTE 2  
FAIL, BEAM HEAT TREATED STEEL ............................. 12 .......... SEE NOTE 2  
FAIL, PENTAGONAL HEAT TREATED STEEL................ 12 .......... SEE NOTE 2  
NUT, HEX 3/8" UNC, NYLOCK PLATED  
WEDGE, PLASTIC  
2
1
7
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 53  
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SCRAPE-R-TACH ASSY.  
SCRAPE-R-TACH ASSY.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 54  
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SCRAPE-R-TACH ASSY.  
SCRAPE-R-TACH ASSY.  
NO.  
1
PART NO.  
29018-082  
29018-084  
29018-085  
29018-086  
29019-019  
29018-087  
06500-020  
08233-005  
29019-017  
07033-004  
07029-004  
PART NAME  
HOUSING  
HOLDER, INSERT  
QTY.  
REMARKS  
1
1
1
2
2
2
1
1
1
2
2
2
3
MOUNT, RUBBER  
4
5
6
7
8
9
SPACER  
INSERT, TUNGSTEN CARBIDE  
SCREW, C/S 1/4" UNC X 1-1/4"  
BOLT CARRIAGE 5/16 UNC X 2-1/2" PLATED GD. 5  
NUT, NYLOCK 5/16"-1/8" UNC, PLATED  
WEDGE, PLASTIC  
10  
11  
NUT, HEX 1/4"-20 PLATED  
WASHER, LOCK1/4" PLATED  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 55  
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GRINDING BLOCK ASSY.  
GRINDING BLOCK ASSY.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 56  
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GRINDING BLOCK ASSY.  
GRINDING BLOCK ASSY.  
NO.  
1
2
3
4
PART NO.  
PART NAME  
BLOCK  
O-RING  
PIN, RETAINING, STAINLESS STEEL  
WEDGE PLASTIC  
QTY.  
REMARKS  
SG242101010  
SG242101030  
83040901  
1
3
3
1
29019-017  
5
5
5
5
SSG242100020 PIN, DIAMOND PURPLE 40-50 GRIT ............ 3 ................AGGRESS GRINDING  
SSG242101020 PIN, DIAMONDYELLOW 40-50 GRIT ............ 3 ................GENERAL PURPOSE  
SSG242102020 PIN, DIAMOND BLACK 40-50 GRIT............... 3 ................EPOXY, MORTAR & ASPHALT  
SSG242103020 PIN, DIAMOND GREEN 40-50 GRIT .............. 3 ................CONCRETE AND ASPHALT  
SSG242104020 PIN, DIAMOND RED 40-50 GRIT ................... 3 ................GRINDING AND POLISHING  
5
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 57  
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DECALS  
DECALS  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 58  
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DECALS  
DECALS  
NO.  
1
2
3
4
5
6
7
8
PART NO.  
PART NAME  
QTY.  
REMARKS  
29020-045  
DECAL,WARNING  
1
1
2
2
1
1
1
1
SFSP85061  
29020-048  
29022-035  
SFSP85020  
SFDCLSDP  
29020-049  
DECAL, GREASE BEARINGS  
DECAL,WARNING  
DECAL,WARNING  
DECAL, MOTOR START/STOP  
DECAL, STOW (LARGE)  
DECAL,WARNING  
SFSP8E5HP5020  
DECAL,WARNING  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 59  
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Effective: July 15, 2003 TERMS AND CONDITIONS OF SALE — PARTS  
Terms and Conditions of Sale  
STOW Construction Equipment  
PAYMENT TERMS  
DROP SHIPMENTS  
The sender will be notified of any material  
received that does not meet the above  
provisions. Such material will be held for 30  
days from notification pending instructions. If  
a reply is not received within 30 days, the  
material will be returned to the sender at his  
expense with no credit issued.  
Terms of payment for unit sales are 2% 15  
days net 30 days from date of invoice unless  
otherwise specifically stated on our invoice.  
Parts invoices have terms of net 10 days.  
Minimum parts billing is $15.00 net.  
Applicable discounts will be computed on  
merchandise value only.Late charges will be  
assessed at prevailing rates. Cash discounts  
cannot be taken on current billings if any  
previously billed amounts are past due.  
STOW reserves the right to refuse Drop  
Shipments outside the normal service area of  
the purchasing dealer.  
FIELDWAREHOUSES  
Field Warehouses are currently located in  
California, Georgia, Idaho, Iowa, and New  
Jersey  
PRICING, REBATES AND  
SPECIFICATIONS  
SPECIAL EXPEDITING SERVICE  
Every effort will be made to provide adequate  
notice of changes; however, prices and  
equipment specifications are subject to  
change without notice.  
The higher of a $35.00 surcharge or actual  
costs will be added to the invoice for special  
handling, including bus shipments, or in cases  
where STOW personnel must personally  
deliver the equipment or parts to the carrier.  
FREIGHT POLICY  
Freight policy is established to offer  
Price changes are effective on a specific date  
and all orders received on or after that date  
will be billed at the revised price.  
customers every advantage possible. Due to  
bulk freight ratings on some equipment and  
other shipping considerations, freight policies  
differ by equipment type. Actual back freight  
may be charged for shipments originating  
from other than specified FOB warehouses.  
See Freight Policy for details.  
RETURNED GOODS POLICY  
Return shipments may be accepted and  
credit allowed, subject to the following  
provisions.  
Rebates for price reductions and added  
charges for price increases will not be made  
for stock in dealer inventory at the time of a  
price change.  
1. A Returned Material Authorization (RMA)  
must be approved by STOW prior to  
shipment. Approvals for returned goods  
must be with just cause and are at the  
sole discretion of STOW. A copy of the  
Authorization must accompany the  
STOW reserves the right to quote and sell  
direct to Government agencies and to  
Original Equipment Manufacturer accounts  
who use our products as integral parts of  
their own products.  
All STOW domestic sales are FOB nearest  
available designated MQ/STOW warehouse.  
Export orders are ex-works factory located in  
Carson, CA or Boise, ID.  
shipment to the designated Warehouse.  
LIMITATION OF SELLER’S LIABILITY  
Additions to orders already shipped cannot  
be accepted for freight minimums.  
2. Parts being returned must be listed as  
currently supplied on the current parts list.  
STOW shall not be liable hereunder for  
damages in excess of the purchase price of  
the item with respect to which damages are  
claimed and in no event shall STOW be liable  
for loss of profit or good will or for any other  
special, consequential or incidental damages.  
Should STOW elect to make partial  
shipments of an order originally complying  
with the “freight allowed” requirements,  
transportation charges will be absorbed by  
STOW on any subsequent shipment applying  
to that order.  
3. Parts must be in new and resalable  
condition in the original package, with part  
numbers clearly marked.  
4. Units and accessories must be current  
models in the latest price list and in new  
and resalable condition.  
LIMITATION OF WARRANTIES  
All other orders will be shipped collect or  
prepaid with charges added to the invoice.  
STOW’s responsibility ceases when a signed  
manifest has been obtained from the carrier,  
and any claim for shortage or damage must  
be settled between the consignee and the  
carrier.  
There are no warranties, express or implied,  
made by STOW. hereunder on Products  
manufactured or distributed by it except the  
warranty against defects in material and  
workmanship on new Products to the original  
purchaser, as set forth in the STOW New  
Product Limited Warranty.  
5. Special order items are not returnable for  
credit.  
6. Credit on returned parts and units will be  
issued at actual dealer net price at time of  
purchase less 15% restocking charge.  
7. All returned shipments are to be made to  
the STOW designated receiving point,  
freight prepaid at the sender’s expense.  
Parts: FOB Carson, California or Boise,  
Idaho. See Freight Policy for details and  
additional discounts.  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 60  
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NOTE PAGE  
SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 61  
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OPERATION AND PARTS MANUAL  
HERE'S HOW TO GET HELP  
PLEASE HAVETHE MODEL AND SERIAL  
NUMBER ON-HANDWHEN CALLING  
UNITED STATES  
Multiquip Corporate Office  
18910 Wilmington Ave.  
Carson, CA 90746  
MQ Parts Department  
800-427-1244  
Tel. (800) 421-1244  
Fax (800) 537-3927  
Fax:800-672-7877  
Fax:310-637-3284  
310-537-3700  
Contact: [email protected]  
Mayco Parts  
800-306-2926  
310-537-3700  
Warranty Department  
800-421-1244, Ext. 279 Fax:310-537-1173  
310-537-3700, Ext. 279  
Fax:800-672-7877  
Fax:310-637-3284  
Service Department  
800-421-1244  
Technical Assistance  
800-478-1244  
Fax:310-537-4259  
Fax:310-631-5032  
310-537-3700  
MEXICO  
MQ Cipsa  
UNITED KINGDOM  
Multiquip (UK) Limited Head Office  
Hanover Mill, Fitzroy Street,  
Ashton-under-Lyne,  
Carr. Fed. Mexico-Puebla KM 126.5  
Momoxpan, Cholula, Puebla72760Mexico  
Tel: (52) 222-225-9900  
Fax: (52) 222-285-0420  
Tel: 0161 339 2223  
Fax: 0161 339 3226  
Lancashire OL7 0TL  
CANADA  
Multiquip  
BRAZIL  
Multiquip  
4110IndustrielBoul.  
Laval, Quebec, Canada H7L 6V3  
Tel: (450) 625-2244  
Fax: (450) 625-8664  
Av. Evandro Lins e Silva, 840 - grupo 505 Tel: 011-55-21-3433-9055  
Barra de Tijuca - Rio de Janeiro Fax: 011-55-21-3433-9055  
STOW CONSTRUCTION EQUIPMENT  
A DIVISION OF MULTIQUIP INC.  
POST OFFICE BOX 6254  
PARTS DEPARTMENT:  
800-427-1244  
FAX: 800-672-7877  
SERVICE DEPARTMENT/  
TECHNICAL ASSISTANCE:  
800-478-1244  
CARSON, CA 90749  
310-537-3700 • 888-252-STOW [888-252-7869]  
FAX:310-537-1986 • FAX: 800-556-1986  
WWW: stowmfg.com  
FAX:310-631-5032  
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