Stow Model Vehicle MS20E User Manual
PARTS AND OPERATION MANUAL  
A
D
IVISION OF MU
L
T
IQUIP INC.  
PLASTER/MORTAR MIXER  
MS20H (Steel-Gasoline)  
MS20E (Steel-Electric)  
Effective S/N SEC55001  
Revision #3 (08/10/06)  
STOWCONSTRUCTIONEQUIPMENT  
A DIVISION OF MULTIQUIP INC.  
POST OFFICE BOX 6254  
DIVISION OF MULTIQUIP INC.  
PARTS DEPARTMENT:  
800-427-1244  
FAX: 800-672-7877  
A
CARSON, CALIFORNIA 90749  
SERVICE DEPARTMENT/TECHNICAL ASSISTANCE:  
800-478-1244  
FAX:310-631-5032  
310-537-3700 • 888-252-STOW [888-252-7869]  
FAX:310-537-1986 • FAX:800-556-1986  
E-MAIL: stow@multiquip.com • WWW: stowmfg.com  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HERE'S HOW TO GET HELP  
PLEASE HAVE THE MODEL AND SERIAL NUMBER  
ON-HAND WHEN CALLING  
PARTS DEPARTMENT  
800-427-1244 or 310-537-3700  
FAX: 800-672-7877 or 310-637-3284  
SERVICE DEPARTMENT/TECHNICAL ASSISTANCE  
800-478-1244 or 310-537-3700  
FAX: 310- 537-4259  
WARRANTY DEPARTMENT  
888-661-4279, or 310-661-4279  
FAX: 310- 537-1173  
MAIN  
800-421-1244 or 310-537-3700  
FAX: 310-537-3927  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
TABLE OF CONTENTS  
Here's How To Get Help ........................................... 3  
Table Of Contents .................................................... 4  
Parts Ordering Procedures ...................................... 5  
Safety Messages Alert Symbols ...........................6-7  
Rules For Safe Operation ...................................8-10  
Operation and Safey Decals .................................. 11  
Specifications ......................................................... 12  
General Information ............................................... 13  
HONDA GX240K1HA2 ENGINE  
Air Cleaner Assembly........................................ 52-53  
Camshaft Assembly .......................................... 54-55  
Carburetor Assembly ........................................ 56-57  
Control Assembly .............................................. 58-59  
Crankcase Cover Assembly.............................. 60-61  
Crankshaft Assembly ........................................ 62-63  
Cylinder Barrel Assembly.................................. 64-65  
Cylinder Head Assembly ................................... 66-67  
Fan Cover Assembly ......................................... 68-69  
Flywheel Assembly ........................................... 70-71  
Muffler Assembly .............................................. 72-73  
Fuel Tank Assembly .......................................... 74-75  
Ignition Coil ....................................................... 76-77  
Piston Assembly................................................ 78-79  
Recoil Starter .................................................... 80-81  
Gear Reduction Assembly ................................ 82-83  
Label Assembly................................................. 84-85  
MQ-STOW — Plaster/Mortar  
Mixer  
Basic Engine Components..................................... 14  
Electric Motor ....................................................15-16  
Controls.................................................................. 17  
Towing Guidelines .................................................. 18  
Safety Chain Connection ....................................... 19  
Trailer Safety Guidelines ...................................20-21  
Paddle Blade Adjustment ....................................... 22  
Pre-Inspection ...................................................23-24  
Initial Start-up....................................................25-27  
Maintenance .......................................................... 28  
Troubleshooting (Engine)..................................29-30  
Troubleshooting (Mixer/Motor)............................... 31  
Electric Motor Wiring Diagram ............................... 32  
Explanation Of Codes In Remarks Column ........... 34  
Suggested Spare Parts .......................................... 35  
Nameplate and Decals......................................36-37  
Honda Engine Assembly...................................38-39  
Electric Motor Assembly....................................40-41  
Steel Tub Assembly ...........................................42-43  
Paddle Shaft Assembly .....................................44-45  
Axle Assembly ...................................................46-47  
Frame Assembly ...............................................48-49  
Engine Cover Assembly ....................................50-51  
Terms and Conditions Of Sale — Parts ................. 86  
PAGE 4 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PARTS ORDERING PROCEDURES  
When ordering parts,  
please supply the following information:  
❒
Dealeraccountnumber  
❒
❒
❒
❒
❒
❒
Dealernameandaddress  
Shipping address (if different than billing address)  
Returnfaxnumber  
Applicable model number  
Quantity,part number and description of each part  
Specifypreferredmethodofshipment:  
✓
✓
✓
✓
✓
✓
FedEx or UPS Ground  
FedEx or UPS Second Day or Third Day  
FedEx or UPS Next Day  
Federal Express Priority One  
DHL  
Note:Unlessotherwiseindicatedbycustomer, all  
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.  
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  
carrier.  
FAX: 310-537-4259  
FAX: 310-631-5032  
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.  
FAX: 310-537-1173  
NOTE:DISCOUNTSARESUBJECTTOCHANGE  
Direct TOLL-FREE access  
to our Parts Department:  
STOWCONSTRUCTIONEQUIPMENT  
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  
INTERNET:www.stowmfg.com  
Toll-free FAX — 800-6-PARTS-7 (800/672-7877)  
E-MAIL: stow@multiquip.com  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS-20 MIXER — SAFETY MESSAGE ALERT SYMBOLS  
FORYOUR SAFETY ANDTHE SAFETY OF OTHERS!  
HAZARD SYMBOLS  
Safety precautions should be followed at all times when operating  
this equipment. Failure to read and understand the Safety  
Messages and Operating Instructions could result in injury to  
yourself and others.  
Lethal Exhaust Gases  
Engine exhaust gases contain poisonous  
carbon monoxide. This gas is colorless and  
odorless, and can cause death if inhaled.  
NEVER operate this equipment in a confined  
area or enclosed structure that does not  
provide ample free flow air.  
NOTE  
This Owner's Manual has been developed to provide  
complete instructions for the safe and efficient operations  
of the MQ STOW mortar and plaster mixer. Refer to the  
engine manufacturers instructions for data relative to its  
safe operation.  
Before using this mixer, ensure that the operating  
individual has read and understands all instructions  
in this manual.  
Explosive Fuel  
Gasoline is extremely flammable, and its  
vapors can cause an explosion if ignited. DO  
NOT start the engine near spilled fuel or  
combustible fluids. DO NOT fill the fuel tank  
while the engine is running or hot. DO NOT  
overfill tank, since spilled fuel could ignite if it  
comes into contact with hot engine parts or  
sparks from the ignition system. Store fuel in  
approved containers, in well-ventilated areas  
and away from sparks and flames. NEVER  
use fuel as a cleaning agent.  
SAFETY MESSAGE ALERT SYMBOLS  
The three (3) Safety Messages shown below will inform you  
about potential hazards that could injure you or others. The  
Safety Messages specifically address the level of exposure to  
the operator, and are preceded by one of three words: DANGER,  
Burn Hazards  
DANGER: You WILL be KILLED or  
SERIOUSLY injured if you do not follow  
directions.  
Engine components can generate extreme heat.  
To prevent burns, DO NOT touch these areas  
while the engine is running or immediately after  
operations. NEVER operate the engine with  
heat shields or heat guards removed.  
WARNING: You CAN be KILLED or  
SERIOUSLY injured if you do not follow  
directions.  
CAUTION: You CAN be injured if you  
Potential hazards associated with operation of the mixer will be  
referenced with Hazard Symbols which appear throughout this  
manual, and will be referenced in conjunction with Safety  
Message Alert Symbols.  
PAGE 6 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS-20 MIXER — SAFETY MESSAGE ALERT SYMBOLS  
Accidental Starting  
Respiratory Hazard  
ALWAYS place the ON/OFF switch in the OFF  
position, disconnect the spark plug lead before  
servicing the engine or equipment. Ground  
the lead to prevent sparks that could ignite a  
fire.  
ALWAYS wear approved respiratory  
protection.  
Equipment Damage Messages  
Sight and Hearing hazard  
Other important messages are provided throughout this manual  
to help prevent damage to your concrete saw, other property, or  
the surrounding environment.  
ALWAYS wear approved eye and hearing  
protection.  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 7  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — RULES FOR SAFE OPERATION  
■
■
■
Whenever necessary, replace nameplate, operation and  
safety decals when they become difficult read.  
CAUTION:  
Failure to follow instructions in this manual  
may lead to serious injury or even death!  
This equipment is to be operated by  
trained and qualified personnel only!This  
equipment is for industrial use only.  
Manufacture does not assume responsibility for any accident  
due to equipment modifications.  
NEVER use accessories or attachments, which are not  
recommended by Multiquip for this equipment. Damage to  
the equipment and/or injury to user may result.  
The following safety guidelines should always be used when  
operating the MS20H/MS20E mortar and plaster mixers:  
■
NEVERtouchthehotexhaustmanifold,  
muffler or cylinder.Allowthese parts to  
cool before servicing engine or mixer.  
GENERAL SAFETY  
■
DO NOT operate or service this equipment  
beforereadingthisentiremanual.  
■
■
This equipment should not be operated  
by persons under 18 years of age.  
■
■
HighTemperatures – Allow the engine to cool before adding  
fuel or performing service and maintenance functions. Contact  
with hot! components can cause serious burns.  
NEVER operate this equipment without proper  
protective clothing, shatterproof glasses, steel-  
toed boots and other protective devices required  
by the job.  
The engine section of this mixer requires an adequate free  
flow of cooling air. NEVER operate the mixer in any enclosed  
or narrow area where free  
flow of the air is restricted. If  
the air flow is restricted it will  
cause serious damage to  
the mixer or engine and  
may cause injury to people.  
Remember the mixer's  
engine gives off DEADLY  
carbon monoxide gas.  
■
■
NEVER operate this equipment when not  
feeling well due to fatigue, illness or taking  
medicine.  
NEVER operate this equipment under the  
influence or drugs or alcohol.  
■
ALWAYS refuel in a well-ventilated area, away from sparks  
and open flames.  
■
■
ALWAYS check the machine for loosened threads or bolts  
before starting.  
■
ALWAYS use extreme caution when  
ALWAYS wear proper respiratory (mask),  
hearing and eye protection equipment when  
operating the mixer.  
working with flammable liquids. When  
refueling, stop the engine and allow it to  
cool. DO NOT smoke around or near the  
machine. Fire or explosion could result from  
fuel vapors, or if fuel is spilled on a hot  
engine.  
■
NEVER operate the mixer in an explosive atmosphere or  
near combustible materials. An explosion or fire could result  
causing severe bodily harm or even death.  
PAGE 8 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — RULES FOR SAFE OPERATION  
■
■
■
Stop the engine when leaving the mixer unattended.  
Transporting  
■
ALWAYS shutdown engine before transporting.  
Block the unit when leaving or when using on a slope.  
■
Tighten fuel tank cap securely and close fuel cock to prevent  
fuel from spilling.  
Maintain this equipment in a safe operating condition at all  
times.  
■
Drain fuel when transporting mixer over long distances or  
bad roads.  
■
■
■
■
■
ALWAYS stop the engine before servicing, adding fuel and  
oil.  
Maintenance Safety  
■
NEVER Run engine without air filter. Severe engine may  
occur.  
NEVER lubricate components or attempt service on a running  
mixer.  
ALWAYS service air cleaner frequently to prevent carburetor  
malfunction.  
■
ALWAYS allow the mixer a proper amount of time to cool  
before servicing.  
ALWAYS be sure the operator is familiar with proper safety  
precautions and operations techniques before using mixer.  
■
■
Keep the mixer in proper running condition.  
Fix damage to the mixer immediately and always replace  
broken parts.  
ALWAYS store equipment properly when it is not being used.  
Equipment should be stored in a clean, dry location out of the  
reach of children.  
■
■
Dispose of hazardous waste properly.Examples of potentially  
hazardous waste are used motor oil, fuel and fuel filters.  
■
■
■
■
DO NOT operate this equipment unless all guards and safety  
devices are attached and in place.  
DO NOT use food or plastic containers to dispose of  
hazardous waste.  
CAUTION must be exercised while servicing this equipment.  
Rotating and moving parts can cause injury if contacted.  
When towing, an adequate safety chain must be fastened to  
the frame, refer to page 19.  
Keep all inexperienced and unauthorized people away  
from the equipment at all times.  
■
■
Unauthorized equipment modifications will void all warranties.  
Check all fasteners periodically for tightness. Also check  
towing tongue bolt, lock nut and wheel lug nuts for wear.  
■
Stop the engine and disconnect the spark plug before allowing  
anybody’s hands in the mixing drum.  
■
■
NEVER pour or spray water over the engine or electric motor.  
ALWAYS stand clear of dump handle when mixer is in  
operation. Any binding of material between the mixer blades  
and drum will cause drum and handle to quickly move in the  
discharge position.  
■
■
Depending on type of mixer, test the ON/OFF switch for either  
the gasoline engine or electric motor before operating. The  
purpose of these switches is to shut down the engine or motor  
of the mixer.  
Refer to the HONDA Engine Owner's Manual for engine  
technical questions or information recommended by Multiquip  
for this equipment. Damage to the equipment and/or injury to  
user may result.  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 9  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — RULES FOR SAFE OPERATION  
Emergencies  
■
In emergencies always know the location of the  
nearest phone or keep a phone on the job site.  
Also know the phone numbers of the nearest  
ambulance, doctor and fire department. This  
information will be invaluable in the case of an  
emergency.  
■
ALWAYS know the location of the nearest fire extinguisher.  
■
ALWAYS know the location of the nearest and first aid kit.  
PAGE 10 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — OPERATION AND SAFETY DECALS  
Machine Safety Decals  
The MQ STOW mortar and plaster mixer is equipped with a number of safety decals.These decals are provided for operator safety  
and maintenance information. Figure 1below illustrates these decals as they appear on the machine. Should any of these decals  
become unreadable, replacements can be obtained from your dealer.  
Figure 1. Mixer Operation and Safety Decals  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — SPECIFICATIONS  
Table 1. MS20H/MS20E Mixer Specifications  
Capacity  
7.0 cu. ft (198 liters)  
1-1/2 to 2-1/2 bags  
624 lbs. (283 kg.)  
613 lbs. (278 kg.)  
Bag Capacity  
Weight MS20H  
Weight MS20E  
Length w/Tow Bar x W x H  
64 x 55.5 x 56 in.  
(162 x 141 x 142 cm.)  
Height W/Dump Handle  
Discharge Height  
Drive  
75 in. (191 cm.)  
75 in. (191 cm.)  
V-Belt/Gear  
Dump Action  
Manual  
Table 2. Specifications (Engine & Electric Motor)  
Model  
HONDA GX240K1HA2  
BALDOR 35L229S302  
Air-cooled 4 stroke, 90 V-  
Twin Cylinder, OHV,  
Horizontal Shaft Gasoline  
Engine  
1.5 HP, 115/230, Single  
Phase Electric Motor  
Type  
2.90 in. X 2.30 in.  
(73 mm x 58 mm)  
Bore X Stroke  
N/A  
Displacement  
Max Output  
14.81 cc  
N/A  
Engine/Electric Motor  
8.0 H.P./3600 R.P.M.  
1.5 H.P./1725 RPM  
Approx. 1.59 U.S. Gallons  
(6 Liters)  
Fuel Tank Capacity  
N/A  
Fuel  
Unleaded Gasoline  
2-1/3 pints  
N/A  
N/A  
Lube Oil Capacity  
Centrifugal Fly-weight  
Type  
Speed Control Method  
Starting Method  
N/A  
N/A  
Recoil Start  
14.0 x 16.9 X 16.1 in.  
(355 X 430 X 410 mm)  
13.3 x 8.7 X 9.06 in.  
(338 X 220 X 230 mm)  
Dimensions (L x W x H)  
Dry Net Weight  
55.1 lbs. (25 Kg.)  
Approx. 22 lbs. (10 Kg.)  
PAGE 12 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — GENERAL INFORMATION  
GENERAL  
GASOLINE ENGINE CARE  
The MQ STOW Model MS20H (Honda GX240K1) gasoline  
engine) and MS20E (electric motor) plaster and mortar mixers  
are shipped completely assembled and have been factory tested.  
For care and operation of the gasoline engine, refer to the engine  
manufacturer’s operating instructions furnished with the engine.  
We recommend draining and refilling the engine crankcase at  
least every thirty hours of operation. Check the engine oil level  
daily.  
The drum batch capacity of these mixers is between 3.5 and  
4.0 bags. With proper care, they will give continuous service  
year-after-year.  
GASOLINE MIXER OFF/ON SWITCH  
These mixers can be powered by either gasoline or electric  
motors.The shaft of the engine or electric motor is connected to  
a drive belt pulley which is attached to a main gear.As the main  
gear rotates it causes the paddle shaft to rotate.  
This feature is on gasoline engine mixers only. Located on the  
side of the engine cover. The purpose of this switch is to start  
and stop the mixer in normal operation.  
ELECTRIC MOTOR MIXER OFF/ON SWITCH  
BEFORE STARTING  
This feature is on electric motor mixers only.This switch is located  
on top of the motor. Lift the engine cover to gain access to this  
switch.The purpose of this switch is to start and stop the mixer in  
normal operation. NEVER use the electric motor in an explosive  
environment.  
Before starting the engine, read the engine owners manual and  
thoroughly understand the safety information.  
Check the items listed below:  
OIL LEVELS  
ENGINETHROTTLE AND CHOKE CONTROLS  
Be sure to check the oil levels in the engine and engine reduction  
unit before starting the unit (gasoline model only).  
Please refer to the engine owners manual for specific instructions.  
HARDWARE  
Check all hardware on the mixer before starting. Periodically  
inspect all hardware. Loose hardware can contribute to early  
component failure and poor performance. Use the torque chart  
below as a general guideline and keep all hardware tight:  
HARDWARE DIA  
5/16"- 18  
TORQUE (LB./FT.)  
24  
37  
39  
90  
3/8" - 24  
1/2" - 13  
1/2" - 13 (Grade 8)  
In accordance with our established  
policy of constant improvement, we  
reserve the right to amend these  
specifications at any time without  
notice.  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — BASIC ENGINE COMPONENTS  
Figure 2. Engine Controls and Components  
5. FuelValve Lever – OPEN to let fuel flow, CLOSE to stop  
INITIAL SERVICING  
the flow of fuel.  
The engine (Figure 2) must be checked for proper lubrication and  
filled with fuel prior to operation. Refer to the manufacturers Engine  
manual for instructions & details of operation and servicing.  
6. Choke Lever – Used in the starting of a cold engine, or in  
cold weather conditions. The choke enriches the fuel  
mixture.  
7. Air Cleaner – Prevents dirt and other debris from entering  
the fuel system. Remove wing-nut on top of air filter  
cannister to gain access to filter element.  
1. Fuel Filler Cap – Remove this cap to add unleaded  
gasoline to the fuel tank. Make sure cap is tightened  
securely. DO NOT over fill.  
NOTE  
WARNING  
WARNING  
Operating the engine without an air filter,  
with a damaged air filter, or a filter in need of  
replacement will allow dirt to enter the  
engine, causing rapid engine wear.  
Adding fuel to the tank should be accomplished only  
when the engine is stopped and has had an  
opportunity to cool down. In the event of a fuel spill,  
DO NOT attempt to start the engine until the fuel residue has been  
completely wiped up, and the area surrounding the engine is dry.  
8. Spark Plug – Provides spark to the ignition system. Set  
spark plug gap to 0.6 - 0.7 mm (0.028 - 0.031 inch) Clean  
spark plug once a week.  
2. Throttle Lever – Used to adjust engine RPM speed (lever  
advanced forward SLOW, lever back toward operator  
FAST).  
9. Muffler – Used to reduce noise and emissions.  
WARNING  
3. Engine ON/OFF Switch – ON position permits engine  
Engine components can generate extreme heat.  
To prevent burns, DO NOT touch these areas  
while the engine is running or immediately after operating. NEVER  
operate the engine with the muffler removed.  
starting, OFF position stops engine operations.  
4. Recoil Starter (pull rope) – Manual-starting method. Pull  
the starter grip until resistance is felt, then pull briskly and  
smoothly.  
10. Fuel Tank – Holds unleaded gasoline. For additional  
information refer to engine owner's manual.  
PAGE 14 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — ELECTRIC MOTOR  
Electric Motor  
Electric MotorVoltage Switch  
For maintenance care and operation of the electric motor, refer  
to your electric motor instruction booklet furnished with the motor.  
1.  
ALWAYS make certain the motor switch is "OFF" and the  
power cord has been disconnected from the power source.  
2.  
Remove the voltage lock-out bolt (Figure 3). Change the  
position of the voltage change toggle switch from 115  
VAC to 230 VAC. The mixer is factory wired for 115 VAC  
operation.  
Protect the electric motor from dust as much as possible and  
keep ventilating openings clean.  
CAUTION:  
3.  
4.  
Replace the voltage lock-out bolt.  
■
DO NOT spray water at any time on the  
electric motor.  
DO NOT operate electric motor in a  
Important!, when changing the input voltage to the motor  
from 115 to 230 VAC the plug on the motor power cord  
must also be changed. See Table 3.  
■
explosive environment.  
The electric motor used in this mixer is a single-phase 1.5 HP  
motor. The input voltage requirement for this motor is either 115  
or 230 VAC only.  
Table 3. Electric Motor Wiring Information  
Motor  
115-230 VAC - Single Phase  
Horsepower  
Rating  
NEMA Plug Connector  
Mating NEMA  
Receptacle Connector  
Electric Motor Connection  
1.5 HP  
(115 VAC)  
A 12 inch electrical cable (Figure 2) with a pigtail at one end is  
provided with the electrical motor for hookup to a power source.  
Table 1. shows the required NEMA connector for the desired  
motor horsepower rating. In addition, Table 2 also shows the  
matching NEMA approved connector for the required extension  
cord.  
L5-20P P/N EM940537  
L6-20P P/N 940539  
L5-20R P/N EM940538  
1.5 HP  
(230 VAC)  
L6-20R P/N 940540  
Table 4. Recommended Extension Cord Size  
s
ALWAYS, make certain that the power source required for the  
electric motor is correct and always use the correct NEMA  
configuration plug. Failure to supply the correct voltage to the  
motor can severely damage the motor.  
50 ft.  
75 ft.  
100 ft.  
200 ft.  
Model  
Motor Voltage  
(15.24 m) (22.86 m) (30.48 m) (60.96 m)  
115  
No. 12  
No. 14  
No. 10  
No. 12  
No. 8  
No. 6  
No. 8  
MS20E  
(Electric)  
1.5 HP  
The motor supplied is wired for 115 VAC grounded operation.  
Make certain that the correct size grounded (3-wires) extension  
cord is used.SeeTable 4.  
230  
No. 12  
Motors can burn out when the line voltage falls 10% below the  
voltage rating of the motor. Failure to use proper voltage will  
cause the motor to overheat and actuate the overload switch.  
If overload protection should actuate because of improper voltage  
or any other malfunction, turn the main switch on the motor to the  
"OFF" position and correct the problem, press the reset switch  
button, and turn the main switch to the "ON" position.  
It is strongly recommended that all  
electrical wiring be done by a licensed  
electrician. Special attention should be  
given to the electric switch as well as  
NOTE  
the over-and-under voltage protection devices as per regulations  
set forth in the local electrical safety code handbook.  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — ELECTRIC MOTOR  
Figure 3. Single Phase Electric Motor with 18 inch Pigtail Cable  
PAGE 16 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — CONTROLS  
8.  
Mixing Paddles — Used in the mixing of material. This  
unit uses four different types of paddles to provide a fast  
uniform mix.  
9.  
Bag Cutter—This feature allows compound mixing bags  
to be opened easily, therefore allowing the contents of the  
bag to fall directly into the mixing drum.  
10. Safety Grill — Provided for operator safety. This safety  
grill is designed to keep hands and solid objects out of the  
mixing drum when in use.This grill should be closed at all  
times when mixer is in use. DO NOT remove the grill or  
grill opening bar. Keep the grill clean by washing it down  
daily.  
11. Dump Handle — Pull this handle downward to dump the  
contents of the drum. Push the handle upward to return  
the drum to its vertical position.  
12. Pivot Point/Zerk Fitting — There is, on each end of the  
mixing drum a zerk grease fitting.These fittings lubricate  
the dumping mechanism. Lubricate both fittings at least  
twice a week.  
Figure 4. Mixer Components  
Figure 4 illustrates the basic components and controls of  
the MS20H/MS20E mixer  
13. Dump Handle Release Pin — Pull this pin outward  
(spring loaded) to release the drum, then pull down on the  
dump handle to place the drum in the dump position. When  
drum is in dump position, pin will automatically lock drum.  
1.  
2.  
3.  
Tires Ply — The tire ply (layers) number is rated in letters;  
This mixer uses 13-inch 4-ply tires.  
Engine Cover — Lift this cover to gain access to the engine  
compartment.  
14. Tow Bar/Coupler — This mixer uses a 2-inch coupler or  
Belt Slip Lever — When starting this lever should be  
move upward and to the left. For mixing place the lever in  
the down position. See attached decal located adjacent to  
lever.  
pintle  
15. Safety Chain — This mixer uses a 3/16-inch thick, 72-  
inches long zinc-plated saftey chain. ALWAYS connect  
the safety chain when towing.  
4.  
5.  
ON/OFF Switch (electric) — This switch is provided on  
mixers with electric motors.To gain access to this switch,  
lift the engine cover.When activated it will shut down the  
electric motor.  
16. Steel Mixing Drum — Mixing materials such as mortar,  
plaster are to be placed into this drum for mixing. Always  
clean the drum after each use.  
17. Chock Blocks — Place these blocks (not included as  
part of the mixer package) under each mixer wheel to  
prevent rolling.  
ON/OFF Switch (gasoline) —This switch is provided on  
mixers with gasoline engines only and is located on the  
side of the engine cover. When activated it will shut down  
the engine.  
6.  
7.  
Latch — Use this latch to secure the engine compartment  
cabinet.  
Safety Grill Lock Handle — To prevent injury to hands  
and arms, the safety grill should ALWAYS be locked when  
the mixing of plaster or mortar is required. Also when  
transporting the mixer the safety grill should be locked.  
The safety grill should only be un-locked when cleaning  
of the blades and drum is required.  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 17  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER —TOWING GUIDELINES  
■
Avoid sudden stops and starts.This can cause skidding, or  
jackknifing. Smooth, gradual starts and stops will improve  
gas milage.  
Towing Safety Precautions  
CAUTION :  
■
■
Avoid sharp turns to prevent rolling.  
■
Check with your county or state safety  
towing regulations department before  
towing your mortar and plaster mixer.  
DO NOT transport mixer with fuel in the fuel tank.  
CAUTION :  
If the trailer coupler is deformed replace  
To reduce the possibility of an accident while transporting  
the mixer on public roads, always make sure that the trailer  
and the towing vehicle are in good operating condition and  
both units are mechanically sound.  
entire coupler. NEVER tow the pump with  
a defective trailer coupler. There exist the  
possibility of the trailer separating from  
the towing vehicle.  
The following list of suggestions should be used when towing  
the mixer:  
Mixer Trailer Vehicle Connection  
1. Check the vehicle hitch ball, and trailer coupler for signs  
of wear or damage. Replace any parts that are worn or  
damaged before towing.  
■
■
■
Make sure that the hitch and coupling of the towing vehicle  
are rated equal to, or greater than the trailer "gross vehicle  
weight rating" (GVWR).  
2. Use only the 2-inch ball diameter with a towing capability  
of 5,000 lbs. (2,268 kg) as indicated on the trailer's  
coupler. Use of any other ball diameter will create an  
extremely dangerous condition which can result in  
separation of the coupler and ball or ball failure.  
ALWAYS inspect the hitch and coupling for wear.NEVER  
tow the mixer with defective hitches, couplings, chains  
etc.  
CHECK the tire air pressure on both the towing vehicle  
and the trailer. Also check the tire tread wear on both  
vehicles.  
3. Be sure the coupler is secured to the hitch ball and the  
lock lever is down (locked).  
■
■
■
ALWAYS make sure the trailer section of the mixer is  
equipped with a "Safety Chain".  
4. Attach safety chains as shown in Figure 5. Remember  
to cross the safety chains underneath the towpole of  
the mixer.  
ALWAYS attach mixer's safety chain to the frame of the  
towing vehicle.  
5. After towing for about 50 miles recheck the entire towing  
system for tightness.  
Remember in most cases the maximum speed unless  
otherwise posted for highway towing is 55 MPH, however  
before towing your mixer, check your local state, and  
county vehicle towing requirements. Recommended off-  
road towing is not to exceed 10 MPH or less depending  
on type of terrain.  
Recommended Maintenance  
1. Smear ball socket and clamp face with chassis grease.  
Periodically oil pivot points and were surfaces of coupler  
with SAE 30 W motor oil.  
■
■
Place chocked blocks underneath wheel to prevent  
rolling, while parked.  
2. When parking or storing the mixer, keep the coupler off  
the ground so dirt and other debris will not build up in  
the ball socket.  
Inflate tires to correct pressure, inspect tires for cuts,  
and excessive wear. See Table 4 (Tire Wear  
Troubleshooting).  
■
■
Check wheel mounting lug nuts with a torque wrench.  
Torque wheel lug nuts as described in the "Lug Nut  
Torque Requirements", Table 6.  
Check tightness of suspension hardware (nuts and bolts)  
.
PAGE 18 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — SAFETY CHAIN CONNECTION  
2. Route the safety chain through the holes just above the  
Always Tow with  
a Safety Chain  
CAUTION  
tow bar, located on each side of the mixer stand.  
Loop the chain together and place under the tow bar.  
Secure the loop with the connector link.  
NEVER! tow the mixer with the safety chain removed.  
The safety chain is intended to prevent complete  
separation of the mixer from the towing vehicle in the  
event of a tow bar failure.  
3. extend the safety chain along the length of the tow bar,  
looping it through the tow bar's connector link. Remove  
any excess chain slack.  
Reference Figure 5 for the installation of the safety chain.  
4. Connect the free end of (clevis safety hook) the safety  
chain to the towing vehicle. Remember it is critical that  
the length of the chain be properly adjusted, to prevent  
the draw bar and the front of the mixer stand from  
dropping to the the ground (contact) in the event the  
draw bar becomes disconnected from the towing vehicle.  
Tow Bar to Mixer Connection  
1. Insert the tow bar through the round opening at the bottom  
of the mixer stand.  
Align the hole on the tow bar with the hole on the mixer  
frame, and insert 1/2-inch bolt through tow bar and frame.  
Secure tow bar to frame with 1/2-inch nylock nut.Tighten  
to 40 ft.-lbs.  
Drum Saftey  
CAUTION  
when Towing  
DO NOT tow the mixer unless the mixing drum is  
completely empty. ALWAYS make sure the drum latch  
pin is fully engaged to the right (Figure 6) of the drum  
stop block. This will keep the drum from rotating.  
Figure 5. Mixer Safety Chain and Coupler  
Figure 6. Drum Latch Pin  
(Tow or Locked Position)  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 19  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER —TRAILER SAFETY GUIDELINES  
Tires/Wheels/Lug Nuts  
Tires and wheels are a very important and critical compo-  
nents of the trailer. When specifying or replacing the trailer  
wheels it is important the wheels, tires, and axle are prop-  
erly matched.  
CAUTION :  
DO NOT attempt to repair or modify a  
wheel. DO NOT install an inter-tube to  
correct a leak through the rim. If the rim  
is cracked, the  
air pressure in the inter-tube may  
cause pieces of the rim to  
explode (break-off) with great  
force and can cause serious eye  
or bodily injury.  
Suspension  
The rigid type axle and associated hardware (Figure 7) should  
be periodically inspected for signs of excessive wear, elon-  
gation of bolt holes, and loosening of fasteners. Replace  
all damaged parts immediately.  
Tires Wear/Inflation  
Tire inflation pressure is the most important factor in tire  
life. Pressure should be checked cold before operation.  
DO NOT bleed air from tires when they are hot. Check  
inflation pressure weekly during use to insure the maxi-  
mum tire life and tread wear.  
Table 5 (Tire Wear Troubleshooting) will help pinpoint the  
causes and solutions of tire wear problems.  
Figure 7. Axle Support Components  
ALWAYS wear safety glasses when  
removing or installing force fitted  
parts. Failure to comply may result  
NOTE  
in serious injury.  
PAGE 20 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER —TRAILER SAFETY GUIDELINES  
Lug NutTorque Requirements  
It is extremely important to apply and maintain proper wheel  
mounting torque on the trailer. Be sure to use only the  
fasteners matched to the cone angle of the wheel. Proper  
procedure for attachment of the wheels is as follows:  
1. Start all wheel lug nuts by hand.  
2. Torque all lug nuts in sequence. See Figure 8. DO NOT  
torquethewheellugnutsallthewaydown.Tighteneachlug  
nut in 3 separate passes as defined by Table 6.  
Table 6. Tire Torque Requirements  
Wheel Size  
First Pass  
FT-LBS  
Second Pass  
FT-LBS  
Third Pass  
FT-LBS  
12"  
13"  
14"  
15"  
16"  
20-25  
20-25  
20-25  
20-25  
20-25  
35-40  
35-40  
50-60  
50-60  
50-60  
50-65  
50-65  
90-120  
90-120  
90-120  
3. Afterfirstroaduse,retorquealllugnutsinsequence.Check  
all wheel lug nuts periodically.  
Figure 8. Wheel Lug Nuts Tightening Sequence  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 21  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — PADDLE BLADE ADJUSTMENT  
Adjust paddles as shown in Figure 9.  
Figure 9. Paddle Blade Adjustment, Steel Drum  
PAGE 22 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — PRE-INSPECTION  
CAUTION  
NEVER operate the mixer  
in a confined area or  
enclosed area structure  
that does not provide ample  
free flow of air.  
ALWAYS wear approved eye and hearing  
protection before operating the mixer.  
Figure 10. Engine Oil Dipstick (Removal)  
3. Insertandremovethedipstickwithoutscrewingitintothefiller  
neck. Check the oil level shown on the dipstick.  
NEVER place hands or feet inside the guard  
cover while the engine is running. ALWAYS  
shut the engine down before performing any  
kind of maintenance service on the trowel.  
4. Iftheoillevelislow(Figure11), filltotheedgeoftheoilfiller  
holewiththerecommendedoiltype(Table7).Maximum oil  
capacity is 400 cc.  
It is recommended that the mixer's kill switch be used to stop  
the engine after every use. Doing this will verify that the switch is  
working properly and presents no danger to the operator.  
Reference manufacturer engine  
manual for specific servicing  
nstructions.  
Before Starting  
1. Read safety instructions at the beginning of manual.  
2. Clean the mixer, removing dirt and dust, particularly the  
engine cooling air inlet, carburetor and air cleaner.  
3. Check theairfilterfor dirtanddust. Ifairfilterisdirty,replace  
air filter with a new one as required.  
4. Check carburetor for external dirt and dust. Clean with dry  
compressedair.  
Figure 11. Engine Oil Dipstick (Oil Level)  
Table 7. Oil Type  
5. Checkfasteningnutsandboltsfortightness.  
Engine Oil Check  
Season  
Summer  
Spring/Fall  
Winter  
Temperature  
25°C or Higher  
25°C~10°C  
Oil Type  
SAE 10W-30  
SAE 10W-30/20  
SAE 10W-10  
1. Tochecktheengineoillevel,placethe trowelonsecurelevel  
ground with the engine stopped.  
2. Remove the filler dipstick from the engine oil filler hole  
(Figure 10) and wipe it clean.  
0°C or Lower  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 23  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — PRE-INSPECTION  
V-belt Check  
Explosive Fuel  
A worn or damagedV-belt can adversely affect the performance  
of the mixer.If aV-belt is defective or worn simply replace the V-  
belt as outlined in the maintenance section of this manual.  
Fuel Check  
Blade Check  
If your mixer has a gasoline engine, determine if the engine fuel  
is low. If fuel is low, remove the fuel filler cap and fill with unleaded  
gasoline. Motor fuels are highly flammable and can be dangerous  
if mishandled. DO NOT smoke while refueling. DO NOT attempt  
to refuel the trowel if the engine is hot! or running.  
Check for worn or paddle blades. Make sure that all blades are  
adjusted properly.See blade adjustment procedure on page 22.  
Replace all defective or damaged blades immediately.  
Controls  
Start/Stop Switches  
1. Remove the gasoline cap located on top of fuel tank.  
This mixer has been equipped with a start/stop switch for both the  
gasoline and electric motor mixers. These switches should be  
tested every time the engine or motor is started.  
2. Visuallyinspecttoseeiffuellevelislow. Iffuelislow,replenish  
with unleaded fuel.  
Lubricants  
Engine Oil  
NEVER! disable or disconnect the  
1.  
2.  
Remove the engine oil dipstick from its holder.  
start/stop switch. It is provided for  
operator safety.Injury may result if it is  
disable, disconnected or improperly  
maintained.  
Determine if the engine oil is low, add correct amount of  
engine oil to bring oil level to a normal safe level.  
Grease Fittings (Zerk)  
1.  
Check the zerk grease fittings at each end of the mixing  
drum. These grease fittings lubricate the dumping  
mechanism. If the dumping handle is stiff or hard to move  
lubricate these fittings.  
PAGE 24 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — INITIAL START-UP  
2.  
To start a cold engine, move the choke lever (Figure 13) to  
the CLOSED position.  
This section is intended to assist the operator with  
the initial start-up of the MS-20H (gasoline) or  
MS20E (electric) mixer.It is extremely important that  
this section be read carefully before attempting to  
use the mixer in the field.  
DO NOT use your mixer until this section is thoroughly  
understood.  
CAUTION:  
Failure to understand the operation of the  
MS20H/MS20E mixers could result in severe  
damage to the mixer or personal injury.  
See Figure 4 (Page 17) for the location of any control referenced  
in this manual.  
Figure 13. Choke Lever  
3.  
Move the throttle lever (Figure 14) away from the slow  
position, about 1/3 of the way toward the fast position.  
Starting (gasoline only)  
The following steps outline the procedure for starting the engine.  
Depending on the type of engine employed in the mixer the  
steps may vary slightly. If your mixer has an electric motor  
disregard this section.  
1.  
Move the fuel shut-off lever (Figure 12) to the ON position.  
Figure 14. Throttle Lever  
Figure 12. Fuel Shut-OFF Lever  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 25  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — INITIAL START-UP  
4.  
Turn the engine switch (Figure 15) to the ON position.  
CAUTION:  
Make certain the drum lock pin (Figures 18  
and 19) is placed to the right (when viewing  
the mixer from the towpole end) of the drum  
stop block which is welded to the front side of  
the drum. Also make sure lock pin is fully  
engaged (locked).This will prevent the drum  
from tipping.  
Figure 15. Engine ON/OFF Switch  
5.  
Located on the engine cover is the main start/stop switch  
(Figure 16). Pull this switch outward to start the engine.  
Figure 19. Drum Lock Pin (Side-View)  
Figure 16. Start/Stop Switch (gasoline)  
6.  
Place the belt slip lever (Figure 17) in the START/STOP  
position.  
Figure 19. Drum Lock Pin (Right Position)  
7.  
Pull the starter grip (Figure 20) lightly until you feel  
resistance, then pull briskly.Return the starter grip gently.  
Figure 18. Belt Slip Lever  
(Start/Stop Position)  
Figure 20. Starter Grip  
PAGE 26 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — INITIAL START-UP  
8.  
Place the belt slip lever (Figure 21) in the mix position.  
This will tilt the engine placing tension on the V-belts  
enabling the shaft to rotate.  
Figure 22. Drum Lock Pin (Left Position)  
Be sure to stand clear of the  
Figure 21. Belt Slip Lever  
(Mix Position)  
dump handle when the mixer is  
operational. Any binding of  
material between the mixer  
Starting (electric only)  
blades and the drum will cause the drum handle to move to the  
discharge position, thus causing bodily harm.  
1.  
Using an adequate size extension cord (see Table 4),  
connect one end of the extension cord to the plug on the  
electric motor, connect the other end to the power source.  
Make sure the motor is configured for the proper operating  
voltage.  
Starting (electric only)  
1.  
Using an adequate size extension cord (see Table 4),  
connect one end of the extension cord to the plug on the  
electric motor, connect the other end to the power source.  
Make sure the motor is configured for the proper operating  
source.  
2.  
Set the electric motor's ON/OFF switch (Figure 3) to the  
ON position.  
2.  
Set the electric motor's ON/OFF switch (Figure 3) to the  
Mixing Dumping  
ON position.  
1.  
The paddle shaft inside the drum should be rotating at this  
time.  
STOPPINGTHE MIXER (gasoline)  
1.  
2.  
Place the belt slip lever in the start/stop position.  
2.  
Lift the mixing bag compound onto the steel grate over the  
bag cutter and let the contents fall into the drum.  
Push the main start/stop switch (Figure 8) inward to stop  
the engine.  
3.  
4.  
Add water, and mix compound to desired consistency.  
3. Turn the fuel shut-off valve to the OFF position.  
When charging, mixing, or dumping a batch of plaster or  
mortar the drum lock pin should be placed to the left  
(when viewing the mixer from the towpole end) of the drum  
stop block which is welded to the front side of the drum.  
See Figure 22.  
4.  
5.  
Disconnect the spark plug.  
Clean drum of all debris and foreign matter.  
STOPPINGTHE MIXER (electric)  
1.  
2.  
3.  
Place the electric motor's start/stop switch (Figure 3) in  
This will allow the operator to use both hands on the drum  
handle during dumping. Please note that when the lock pin  
is placed to the left, the drum will only rotate in a clockwise  
direction. When the dump handle is released, the drum will  
return to an upright position.  
the OFF position.  
Disconnect the electric motor's extension cord from its  
power source.  
Clean drum of all debris and foreign matter  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 27  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — MAINTENANCE  
CAUTION:  
WHEEL BEARINGS  
After every 3 months of operation, remove the hub dust cap and  
inspect the wheel bearings. Once a year, or when required,  
disassemble the wheel hubs remove the old grease and repack  
the bearings forcing grease between rollers, cone and cage  
with a good grade of high speed wheel bearing grease (never  
use grease heavier than 265 A.S.T.M.penetration (“No.2.”) Fill  
the wheel hub with grease to the inside diameter of the outer  
races and also fill the hub grease cap.  
Failure to lubricate the zerk grease fittings  
two or three times a week will cause the  
dumping mechanism to stiffen, making the  
mixer hard to dump.  
BEARING BRACKET  
Grease the bearing bracket every month.  
Reassemble the hub and mount the wheel. Then tighten the  
adjusting nut, at the same time turn the wheel in both directions,  
until there is a slight bind to be sure all the bearing surfaces are  
in contact.  
GEAR ALIGNMENT  
The countershaft and drive pinion are mounted on a slotted  
base.To align gears, loosen the pillow block mounting bolts and  
move them until the necessary alignment has been made.  
Then back-off the adjusting nut 1/6 to 1/4 turn or to the nearest  
locking hole or sufficiently to allow the wheel to rotate freely  
within limits of .001" to .010" end play.Lock the nut at this position.  
Install the cotter pin and dust cap, and tighten all hardware.  
GEAR LUBRICATION  
The surface of the pinion and bull gear should be very lightly  
greased every 250 hours. IMPORTANT! avoid over-greasing.  
Excess grease will accumulate contaminates and cause  
premature wear.  
DRUM HEAD SEAL CARE  
CLEANING  
Grease every 40 hours of operation using any grade #1 lithium  
base grease. Appy grease until visible inside of mixing tub (over  
grease).This will purge the seal system of contamination.  
ALWAYS disconnect the spark plug wire before cleaning the  
inside of the drum.  
NEVER pour or spray water over the gasoline engine or electric  
motor.  
PADDLE SHAFT BEARINGS  
The paddle shafts in the MQ STOW mixers rotate in sealed ball  
bearings, which require no additional lubrication as they are  
packed and sealed at the factory.  
For consistent performance, long life and high quality mixing,  
thoroughly clean the mixer inside and out at the end of each  
day’s operation.To prevent lumps of dried mortar from forming  
and contamination of future batches, do not allow a buildup of  
materials to form on the blades or anywhere inside the drum.  
There is, on each end of the mixing drum, an zerk grease fitting.  
Oil these fittings two or three times each week as they lubricate  
the dumping mechanism of the mixing drum.  
PAGE 28 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER —TROUBLESHOOTING (ENGINE)  
Practically all breakdowns can be prevented by proper  
If the problem cannot be remedied, please leave the unit  
just as it is and consult or company's service department.  
handling and maintenance inspections, but in the event of a  
breakdown, please take a remedial action following the  
diagnosis based on the Engine, Mixer and Electric Motor  
Troubleshooting (Tables 8, 9 and10) information shown below  
and on the proceeding pages.  
TABLE 8. ENGINE TROUBLESHOOTING  
SYMPTOM  
POSSIBLE PROBLEM  
SOLUTION  
Inspect carburetor to see if fuel  
is reaching it?  
Check fuel line  
No Fuel?  
Add Fuel  
Water in fuel tank?  
Fuel filter clogged?  
Stuck carburetor?  
Spark plug is red?  
Flush or replace fuel tank.  
Replace fuel filter  
Check float mechanism.  
Poor starting  
Spark plug is fouled. Check tranistor ignition unit.  
Insufficient compression, injected air leaking. Carburetor jets are  
clogged (overflow).  
Spark plug is blue-white?  
No spark present at tip of spark  
plug?  
Tranistor ignition unit broken, high voltage cord cracked or broken.  
Start/Stop switch broken. Replace spark plug if fouled.  
No oil?  
Add oil as required.  
Oil pressure alarm lamp blinks  
upon starting?  
Check Automatic shutdown circuit "oil sensor".  
Replace cylinder and piston and if necessary axel joint.  
Tighten cylinder head connecting bolts.  
Engine will not turn over?  
Cylinder head connecting bolts  
loose?  
Cylinder head gasket damaged? Replace cylinder head gasket.  
Insufficient power output "no  
compression"  
Malfunction of valve seat?  
Spark plug is loose?  
Worn piston rings?  
Re-seat valves.  
Replace spark plug.  
Replace piston rings.  
Malfunction in air-cleaner  
system, air filter clogged?  
Clean or replace air filter.  
Air leaking in from interface  
between carburetor and cylinder  
head?  
Tighten bolts between carburetor and cylinder head. Replace  
cylinder head gasket.  
Insufficient power output  
"compression"  
Clean or replace fuel filter.  
Clean or replace carburetor.  
Check carburetor float.  
Malfunction in fuel system?  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 29  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER —TROUBLESHOOTING (ENGINE)  
TABLE 8. ENGINE TROUBLESHOOTING (CONTINUED)  
SYMPTOM  
POSSIBLE PROBLEM  
Malfunction in cooling fan?  
Air in-take filter clogged?  
SOLUTION  
Check or replace cooling fan.  
Insufficient power output  
"compression" and overheats  
Clean or replace air in-take filter.  
Over accumulation of exhaust  
products?  
Clean and check valves.  
Check muffler, replace if necessary.  
Burns to much fuel  
Wrong spark plug?  
Replace spark plug with manufactures suggested type spark plug.  
Replace lubricating oil with correct viscosity.  
Replace rings  
Lubricating oil is wrong  
viscosity?  
Exhaust color is continiously  
"WHITE"  
Worn rings?  
Air cleanner clogged?  
Clean or replace air cleaner.  
Choke valve has not been set  
to the correct position?  
Adjust choke valve to the correct position.  
Exhaust color is continiously  
"BLACK"  
Carburetor defective, seal on  
carburetor broken?  
Replace carburetor or seal.  
Adjust carburetor.  
Poor carburetor adjustment  
"engine runs too rich?  
PAGE 30 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER —TROUBLESHOOTING (MIXER/MOTOR)  
TABLE 9. MIXER TROUBLESHOOTING  
SYMPTOM  
POSSIBLE PROBLEM  
Worn or defective V-belt?  
SOLUTION  
Replace V-belt.  
Blades will not rotate.  
Adjustment lever mis-aligned?  
Check position of adjustment lever. Adjust if necessary.  
Replace seals.  
Material leaking from drum  
ends.  
Worn or defective paddle shaft  
seals?  
Defective or worn drum support  
brackets?  
Apply grease to bracket or replace.  
Drum difficult to discharge (tilt)  
Blades adjusted too tight.  
Adjust blades until they almost touch side walls of drum.  
TABLE 10. ELECTRIC MOTOR TROUBLESHOOTING  
POSSIBLE PROBLEM  
SYMPTOM  
SOLUTION  
No voltage to motor?  
Check power source.  
Replace extension cord.  
Replace switch.  
Defective extension cord?  
Blades will not rotate.  
Defective motor ON/OFF switch?  
Defective motor windings?  
Repair windings or replace windings.  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 31  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER —WIRING DIAGRAM (ELECTRIC MOTOR)  
Figure 22. Electric MotorWiring Diagram  
PAGE 32 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
NOTE PAGE  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 33  
Download from Www.Somanuals.com. All Manuals Search And Download.  
EXPLANATION OF CODE IN REMARKS COLUMN  
How to read the marks and remarks used in this parts book.  
Section 1: Items Found In the “Remarks” Column  
Serial Numbers-Where indicated, this indicates a serial  
number range (inclusive) where a particular part is used.  
Model Number-Where indicated, this shows that the  
corresponding part is utilized only with this specific model  
number or model number variant.  
Section 2: Items Found In the “Remarks” Column  
Serial Numbers-Where indicated, this indicates a serial number  
range (inclusive) where a particular part is used.  
Model Number-Where indicated, this shows that the  
corresponding part is utilized only with this specific model number  
or model number variant.  
Section 3: Items Found In the“Items Number”Column  
All parts with same symbol in the number column, , #,  
, belong to the same assembly or kit.  
+
, %, or  
*
■
Note: If more than one of the same reference number is listed,  
the last one listed indicates newest (or latest) part available.  
PAGE 34 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — SUGGESTED SPARE PARTS  
MS20H/MS20E MIXER 1TO 3 UNITSWITH  
HONDA GX240K1HA2 ENGINE  
Qty.  
P/N  
Description  
2 ............ 491010 ............ RUBBER LATCH ASSY.  
1 ............ 503640 ............ V-BELT, HONDA 8.0 HP  
1 ............ 491112 ............ V-BELT, ELECTRIC MOTOR  
1 ............ 25647-503 ...... WIPER KIT  
2 ............ 3065................ SEAL, AXLE  
1 ............ 29173-001 ...... STOP SWITCH  
3 ............ 9807956846 .... SPARK PLUG HONDA 8.0 HP  
3 ............ 17210ZE2505 . ELEMENT, AIR HONDA 8.0 HP  
1 ............ 28462ZE2W11 ROPE, RECOIL STARTER  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 35  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — NAMEPLATE AND DECALS  
NAMEPLATE AND DECALS.  
PAGE 36 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — NAMEPLATE AND DECALS  
NAMEPLATE AND DECALS.  
NO  
PART NO  
TBD  
21780-001  
DCL160  
TBD  
PART NAME  
DECAL: STOW (MULTIQUIP)  
DECAL:WARNING  
QTY.  
2
1
1
1
1
1
1
1
REMARKS  
2
*
3
*
4
DECAL: PROP. 65  
*
5
DECAL: KEEP COVER CLOSED  
DECAL:CAUTION READ  
DECAL: BELT SLIP LEVER  
DECAL:WARNING GRATE  
DECAL: PUSH IN STOP  
DECAL: NAMEPLATE ....................... 1 ............ CONTACT MQ PARTS DEPT.  
DECAL:CAUTION, DRUM LOCK  
DECAL:WARNINGTOW POLE  
*
6
TBD  
*
7
21781-001  
25259-001  
TBD  
*
8
*
9
*
10  
11  
25474-001  
21513-001  
DCLMS20  
1
1
*
12  
13  
*
KIT, DECAL ....................................... 1 ............ INCLUDES ITEMS W/  
*
SEE DECAL ILLUSTRATIONS ON PAGE 11.  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 37  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — HONDA ENGINE ASSY.  
HONDA ENGINE ASSY.  
PAGE 38 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — HONDA ENGINE ASSY.  
HONDA ENGINE ASSY.  
NO  
11  
20  
27  
28  
29  
32  
33  
34  
42  
66  
94  
97  
99  
98  
PART NO  
PART NAME  
QTY.  
1
2
44  
50  
50  
6
6
6
4
REMARKS  
20559-001  
20178-001  
07030-006  
07029-006  
07033-006  
07030-005  
07029-005  
07033-005  
06501-014  
06500-016  
10057-032  
GX240K1HA2  
24975-001  
505205  
POWER MOUNT SPRING  
PILLOW BLOCK BEARING  
FLAT WASHER 3/8  
LOCK WASHER 3/8  
HEX NUT 3/8-16  
FLAT WASHER 5/16  
LOCK WASHER 5/16  
HEX NUT 5/16-18  
CAP SCREW 3/8-16 x 1-3/4  
CAP SCREW 5/16 - 18 x 2 ............... 2 ............ B & S 7.0 HP  
SQUARE KEY 1/4 x 1-1/2  
ENGINE- 8 H.P. HONDA .................. 1 ............ REPLACES 21922-401  
BELT RETAINER BAR  
DRIVE PULLEY  
3
1
1
100  
102  
103  
104  
106  
107  
108  
121  
12969-008  
20019-001  
20022-001  
492077  
07030-016  
503640  
SOCKET SET SCREW 5/16-18  
PINION SHAFT  
PINION GEAR  
DRIVEN PULLEY  
FLAT WASHER  
V-BELT .............................................. 2 ............ HONDA, B &S  
4
1
1
1
AR  
20771-354  
06500-010  
ENGINE MOUNT  
CAP SCREW 5/16- 18 x 1-1/4  
1
1
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 39  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — ELECTRIC MOTOR ASSY. (ELECTRIC)  
ELECTRIC MOTOR ASSY.  
PAGE 40 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — ELECTRIC MOTOR ASSY. (ELECTRIC)  
ELECTRIC MOTOR ASSY.  
NO  
20  
27  
28  
29  
32  
33  
34  
82  
83  
84  
92  
93  
94  
95  
99  
100  
101  
PART NO  
PART NAME  
PILLOW BLOCK  
QTY.  
2
40  
50  
50  
6
6
6
1
1
1
1
1
2
2
1
4
5
REMARKS  
20178-001  
07030-006  
07029-006  
07033-006  
07030-005  
07029-005  
07033-005  
493206  
20250-352  
502213  
20216-001  
530088  
10057-032  
491112  
24975-001  
12969-008  
06500-008  
FLAT WASHER 3/8  
LOCK WASHER 3/8  
HEX NUT 3/8-16  
FLAT WASHER 5/16  
LOCK WASHER 5/16  
HEX NUT 5/16-18  
MOTOR & CONTROL ASSY.  
MOTOR MOUNT UNIT  
DRIVE PULLEY  
PINION & SHAFT  
DRIVEN PULLEY  
SQUARE KEY 1/4 x 1-1/2  
V-BELT  
BELT RETAINER BAR  
SOCKET SET SCREW 5/16-18  
CAP SCREW 5/16-18 x 1  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 41  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — STEELTUB ASSY.  
STEELTUB ASSY.  
PAGE 42 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — STEELTUB ASSY  
STEELTUB ASSY.  
NO  
2
PART NO  
PART NAME  
DRUM  
QTY.  
1
REMARKS  
29282-351  
29212-351  
20657-001  
27127-004  
20561-001  
20655-001  
25492-001  
20211-001  
21380-001  
18937-003  
20654-001  
20472-001  
08602-006  
20576-501  
13698-062  
17985-010  
07030-006  
07029-006  
07033-006  
06505-012  
10057-034  
17985-012  
07033-010  
20104-001  
08326-007  
07030-008  
13698-010  
07594-012  
07028-055  
07745-001  
3
6
7
8
GRATE  
TRUNNION HUB  
LIFT BAR  
SEALED BEARING  
RETAINING RING  
DRUM HANDLE  
MAIN GEAR SPACER  
DRUM HANDLE GRIP  
SPECIAL WASHER  
SHAFT SEAL  
1
2
2
2
2
1
1
1
2
2
1
12  
2
9
10  
13  
15  
17  
19  
21  
22  
23  
24  
26  
27  
28  
29  
51  
53  
54  
56  
65  
86  
88  
90  
91  
109  
110  
MAIN GEAR  
FLAT WASHER 3/8  
DRUM BEARING ASSY.  
HITCH PIN  
1
CARRIAGE BOLT 3/8-16 x 1-1/4  
FLAT WASHER 3/8  
LOCK WASHER 3/8  
HEX NUT 3/8-16  
CAP SCREW 5/8 -11 x 1-1/2  
SQUARE KEY 3/8 x 2  
CARRIAGE BOLT 3/8 - 16 x 1-1/2  
HEX NUT 5/8-11  
SHAFT SEAL  
CLEVIS PIN  
FLAT WASHER 1/2  
HITCH PIN  
ROLL PIN 3/16 x 3/4  
COTTER PIN 5/32 x 1  
GREASE FITTING  
22  
40  
50  
50  
2
1
4
1
2
1
3
1
2
2
3
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 43  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — PADDLE SHAFT ASSY.  
PADDLE SHAFT ASSY.  
CENTER  
ENGINE END  
2
45  
64  
63  
38  
26  
TOW  
END  
ENGINE  
END  
64  
3
1
35  
63  
47  
36  
43  
26  
39  
27  
46  
28  
37  
27  
40  
44  
26  
29  
28  
29  
39  
27  
40  
CENTER  
TOW END  
28  
29  
NOTES:  
WHEN ORDERING SCRAPPER  
AND WIPER (SHORT) SEE ITEMS  
43 AND 44 TOW END.  
1
2
3
WHEN ORDERING SCRAPPER  
AND WIPER(LONG) SEE ITEMS  
39 AND 40 CENTER TOW END.  
WHEN ORDERING SCRAPPER  
AND WIPER (LONG) SEE ITEMS  
39 AND 40 ENGINE END.  
PAGE 44 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — PADDLE SHAFT ASSY.  
PADDLE SHAFT ASSY.  
NO  
PART NO  
PART NAME  
CARRIAGE BOLT 3/8-16 x 1-1/4  
FLAT WASHER 3/8  
LOCK WASHER 3/8  
HEX NUT 3/8-16  
PADDLE ASSY. TOW POLE END  
PADDLE ASSY. ENGINE END  
PADDLE ASSY. CNT.TOW END  
PADDLE ASSY. CTN. ENG. END  
WIPER LONG  
SCRAPER LONG  
WIPER SHORT  
QTY.  
22  
44  
50  
50  
1
1
1
1
4
4
2
2
4
4
1
16  
6
REMARKS  
26  
17985-010  
07030-006  
07029-006  
07033-006  
29263-501  
29263-504  
29263-502  
29063-503  
20726-001  
20725-001  
20048-001  
20111-001  
29059-002  
06513-026  
29063-351  
07029-108  
07037-108  
29285-503  
25647-503  
*
27  
28  
29  
35  
36  
37  
38  
*
*
*
*
*
*
*
39  
40  
#
*
*
43  
#
*
*
44  
45  
46  
47  
63  
64  
SCRAPER SHORT  
U-BOLT PADDLE MNT.  
CAP SCREW 1/2 -20 x 3-1/4  
PADDLE SHAFT SQ  
LOCK WASHER 1/2 GRADE 8  
HEX NUT 1/2-20 GRADE 5  
PADDLE KIT ..........................................1 ..... INCLUDES ITEMS W/  
WIPER KIT ............................................1 ..... INCLUDES ITEMS W/  
*
#
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 45  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — AXLE ASSY.  
AXLE ASSY.  
PAGE 46 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — AXLE ASSY.  
AXLE ASSY.  
NO  
20  
27  
PART NO  
PART NAME  
QTY.  
2
2
2
2
10  
3
1
REMARKS  
507444  
EM903012  
EM903113  
3065  
8115  
0183  
530032  
500617  
EM941306  
502246  
3005  
AXLE WASHER  
BEARING CUP  
BEARING CONE  
SEAL  
WHEEL NUT  
COTTER PIN 5/32 x 1-1/2  
AXLE  
*
28  
29  
31  
41  
47  
69  
73  
75  
77  
114  
U-BOLT AXLE MNT.  
2
HUB ASSY. ...............................................................2 ............INCLUDES ITEM W/  
*
SLOTTED HEX NUT 1-20  
WHEEL & TIRE ASSY. -12”  
DUST COVER  
2
2
2
3469  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 47  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — FRAME ASSY.  
FRAME ASSY.  
PAGE 48 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — FRAME ASSY.  
FRAME ASSY.  
NO  
1
2
PART NO  
29016-351  
3215  
PART NAME  
QTY.  
1
1
REMARKS  
MAIN FRAME UNIT  
BOLT 1/2 x 13 x 3-1/2  
NUT, NYLOCK 1/2-13  
3
10176  
1
4
4
4
4
27071-351  
26149-351  
HBC-1  
BALL HITCH TOW POLE 1-1/2" ID ............ 1 ........... UP TO S/N SEC  
PINTLE TOW POLE 1-1/2" ID .................... 1 ........... UP TO S/N SEC  
BALL HITCH TOW POLE 2" ID ................. 1 ........... STARTING AT S/N SEE  
PINTLE TOW POLE 2" ID ......................... 1 ........... STARTING AT S/N SEE  
................................................................................... CONTACT UNIT SALES  
HLC-1  
5
12  
14  
41  
48  
49  
50  
55  
56  
57  
58  
60  
61  
63  
64  
69  
20567-352  
29277-351  
20278-001  
07028-057  
06505-028  
06505-024  
07418-010  
07029-010  
07033-010  
07030-010  
22856-001  
28986-001  
22538-001  
TBD  
492589  
500617  
07030-012  
25398-001  
29242-001  
07028-055  
LOCK PIN UNIT  
1
1
1
3
1
1
1
3
1
3
1
2
4
16  
6
2
1
1
2
2
1
ENGINE MOUNT SHAFT  
CLUTCH HANDLE GRIP  
COTTER PIN 5/32 x 1-1/2  
CAP SCREW 5/8 -11 x 3-1/2  
CAP SCREW 5/8 -11 x 3  
LOCK NUT 5/8 NYLOCK  
LOCK WASHER 5/8  
HEX NUT 5/8-11  
FLAT WASHER 5/8  
BELT SLIP LEVER  
TRANSOM COVER  
THD. ROLLING SCREW 1/4-20 x 1/2  
LOCK WASHER 1/2 GRADE 8  
HEX NUT 1/2-20 GRADE 5  
U-BOLT AXLE MNT.  
FLAT WASHER 3/4  
SPRING- LOCKING PIN  
PLATE  
COTTER PIN 5/32 x 1  
SAFETY CHAIN  
CONNECTOR LINK ..................................... 2 ........... BEFORE JANUARY 2006  
CONNECTOR LINK ..................................... 1 ........... AFTER JANUARY 2006  
CLEVIS SAFETY HOOK ............................. 1 ........... AFTER JANUARY 2006  
CHAIN AND LINK KIT ................................. 1 ........... INCLUDES ITEMS W/#  
74  
85  
89  
109  
110#  
111#  
111#  
111A# 516580  
112 13363KIT  
01004  
01004  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 49  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — ENGINE COVER ASSY.  
CABINET ASSY.  
PAGE 50 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MS20H/MS20E MIXER — ENGINE COVER ASSY.  
ENGINE COVER ASSY.  
NO  
16  
22  
28  
29  
PART NO  
PART NAME  
QTY.  
1
REMARKS  
29280-501  
08602-006  
07029-006  
07033-006  
06501-008  
29173-001  
29174-001  
491010  
ENGINE HOUSE ASSY.  
FLAT WASHER 3/8  
LOCK WASHER 3/8  
HEX NUT 3/8-16  
CAP SCREW 3/8 - 16 x 1  
STOP SWITCH  
12  
50  
50  
12  
1
1
2
62  
111  
112  
115  
118  
RED KNOB  
LATCH ASSY.  
23342-523  
WIRE ASSY. GROUND LEAD ...............1 ..... HONDA, B & S  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 51  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — AIR CLEANER ASSY.  
AIR CLEANER ASSY.  
PAGE 52 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — AIR CLEANER ASSY.  
AIR CLEANER ASSY.  
NO.  
1
2
3
*
5
PART NO.  
PART NAME  
QTY.  
REMARKS  
16271ZE2000  
17210ZE2505  
17218ZE2505  
17231ZH9820  
17232891000  
17238ZE2310  
17239ZE1000  
17410ZE2020  
90203ZA0800  
90325044000  
90009ZE2003  
9405006000  
GASKET, ELBOW ..................................... 1 ............. INCLUDES ITEM W/  
*
ELEMENT, AIR CLEANER, DUAL  
FILTER, OUTER  
COVER, AIR CLEANER  
GROMMET, AIR CLEANER  
COLLAR, AIR CLEANER  
COLLAR B, AIR CLEANER  
ELBOW COMP., AIR CLEANER ............... 1 ............. INCLUDES ITEM W/  
WINGNUT 6MM  
WINGNUT, TOOL BOX SETTING  
BOLT- WASHER 6 X 22  
NUT, FLANGE 6MM  
1
1
1
1
2
1
6
8
9
#
#
10  
12  
13  
14  
15  
#
1
2
1
2
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 53  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — CAMSHAFT ASSY.  
CAMSHAFT ASSY.  
PAGE 54 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — CAMSHAFT ASSY.  
CAMSHAFT ASSY.  
NO.  
1
1
2
3
4
5
6
*
7
8
PART NO.  
PART NAME  
QTY.  
REMARKS  
14100ZE2W01  
14100ZE2306  
14410ZE2013  
14431ZE2010  
14441ZE2000  
14451ZE1013  
14568ZE1000  
14711ZE2000  
14721ZE2000  
14751ZE2003  
14771ZE2000  
14773ZE2000  
14781ZE2000  
14791ZE2010  
90012ZE0010  
90206ZE1000  
CAMSHAFT ASSY. ................................... 1 ............. INCLUDES ITEM W/  
*
CAMSHAFT  
ROD PUSH  
ARM VALVE ROCKER  
LIFTER VALVE  
PIVOT ROCKER ARM  
SPRING, WEIGHT RETURN  
VALVE, IN.  
1
2
2
2
2
1
1
1
2
1
1
1
1
2
2
VALVE, EX.  
SPRING, VALVE  
9
10  
11  
12  
13  
14  
15  
RETAINER, IN. VALVE SPRING  
RETAINER, EX. VALVE SPRING  
ROTATOR,VALVE  
PLATE, PUSH ROD GUIDE  
BOLT, PIVOT 8MM  
NUT, PIVOT ADJ.  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 55  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — CARBURETOR ASSY.  
CARBURETOR ASSY.  
PAGE 56 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — CARBURETOR ASSY.  
CARBURETOR ASSY.  
NO.  
PART NO.  
PART NAME  
QTY. REMARKS  
1 +  
16010ZE2812  
16011ZA0931  
16013ZA0931  
16016ZHW01  
16024ZE1811  
16028ZE0005  
16028ZE2005  
16100ZE2W71  
16124ZE0005  
16166ZE2W70  
16172ZE3W10  
16173001004  
16211ZE2000  
16220ZA0702  
16221ZA0800  
16223ZA0800  
16610ZE1000  
16953ZE1812  
16954ZE1811  
16956ZE1811  
16957ZE1812  
16967ZE0811  
93500030060H  
9430520122  
GASKET SET  
VALVE SET, FLOAT  
FLOAT SET  
1
1
1
1
1
1
1
*
2
3
*
*
5
SCREW SET  
*
6 +  
SCREW SET, DRAIN  
SCREW SET B  
CHOKE SET  
CARBURETOR ASSY.................... 1 ..... INCLUDES ITEMS W/  
SCREW, THROTTLE STOP  
NOZZLE, MAIN  
*
7 +  
*
8
*
9
*
*
10  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
*
11  
*
12  
*
COLLAR, SET  
O-RING  
13  
*
14  
INSULATOR, CARB.  
SPACER COMP., CARB.  
GASKET, CARBURETOR  
GASKET, INSULATOR  
LEVER COMP., CHOKE, STD.  
LEVER, VALVE  
PLATE, LEVER SETTING  
SPRING, VALVE LEVER  
GASKET, VALVE  
CUP, FUEL STRAINER  
SCREW, PAN 3 X 6  
PIN, SPRING 2 X 12  
JET, MAIN #82, OPTIONAL  
JET, MAIN #85, OPTIONAL  
JET, MAIN #88  
15  
16  
17  
18  
19  
*
20  
*
21  
*
22  
*
23  
*
24  
*
25  
26  
99101ZH70820  
99101ZH70850  
99101ZH70880  
99204ZE20400  
16015ZE8005  
*
26  
*
26  
*
27  
28  
JET SET, PILOT #40  
CHAMBER SET, FLOAT ................ 1 ..... INCLUDES ITEMS W/+  
*
*
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 57  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — CONTROL ASSY.  
CONTROL ASSY.  
PAGE 58 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — CONTROL ASSY.  
CONTROL ASSY.  
NO.  
2
3
4
5
PART NO.  
PART NAME  
ARM, GOVERNOR  
ROD, GOVERNOR  
SPRING, GOVERNOR  
SPRING,THROTTLE RETURN  
CONTROL ASSEMBLY ................................ 1 .......... INCLUDES ITEMS W/  
QTY.  
REMARKS  
16551ZE2000  
16555ZE2000  
16561ZE2000  
16571ZE2000  
16570ZE2W00  
16571ZE2W00  
16574ZE1000  
16575ZE2W00  
16578ZE1000  
16581ZE2W00  
16584883300  
90013883000  
90015ZE5010  
90114SA0000  
93500050280A  
9405006000  
1
1
1
1
8
*
10  
LEVER, CONTROL  
SPRING, LEVER  
1
1
1
1
1
1
2
1
1
1
1
*
11  
*
12  
*
WASHER, CONTROL LEVER  
SPACER, CONTROL LEVER  
BASE, CONTROL  
SPRING, CONTROL ADJUSTING  
BOLT, FLANGE (6 X 12) (CT200)  
BOLT, GOVERNOR ARM  
NUT, SELF- LOCK (6MM)  
SCREW, PAN (5 X 28)  
NUT, FLANGE  
14  
*
15  
*
16  
*
19  
20  
21  
*
24  
*
27  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 59  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — CRANKCASE COVER ASSY.  
CRANKCASE COVER ASSY.  
PAGE 60 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — CRANKCASE COVER ASSY.  
CRANKCASE COVER ASSY.  
NO.  
2
PART NO.  
11400ZE2621  
PART NAME  
QTY.  
REMARKS  
COVER ASSY., CRANKCASE ..................... 1........... INCLUDES ITEMS W/  
(H-TYPE) (BALANCER)  
*
3
4
5
8
9
11381ZE2801  
15600ZG4003  
15600735003  
15625ZE1003  
15625ZE1003  
16510ZE2811  
GASKET, CASE COVER  
1
CAP ASSY., OIL FILLER ............................. 1........... INCLUDES ITEMS W/  
CAP ASSY., OIL FILLER ............................. 1........... INCLUDES ITEMS W/  
#
%
%
#
GASKET, OIL FILLER CAP  
GASKET, OIL FILLER CAP  
1
1
10  
GOVERNOR ASSEMBLY (BALANCER) ...... 1........... INCLUDES ITEMS W/+  
11 + 16511ZE2000  
WEIGHT, GOVERNOR  
2
1
2
1
1
1
2
1
7
1
1
1
1
*
12 + 16512ZE2811  
HOLDER, GOVERNORWEIGHT  
PIN, GOVERNOR WEIGHT  
SLIDER, GOVERNOR  
WASHER (6 X 16)  
CLIP, GOVERNOR HOLDER  
PIN, DOWEL (8 X 12)  
WASHER, PLAIN (6MM)  
BOLT, FLANGE (8 X 35)  
BEARING, RADIAL BALL (6202)  
BEARING, RADIAL BALL (6204)  
BEARING, RADIAL BALL (6206)  
BEARING, RADIAL BALL (6302)  
*
13 + 16513ZE2000  
*
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
16531ZE2000  
90473147000  
90602ZE1000  
90701HC4000  
9410106800  
957010803500  
961006202000  
961006204000  
961006206000  
961006302000  
*
*
*
*
*
*
*
*
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 61  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2ENGINE — CRANKSHAFT ASSY.  
CRANKSHAFT ASSY.  
PAGE 62 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2ENGINE — CRANKSHAFT ASSY.  
CRANKSHAFT ASSY.  
NO.  
3
8
PART NO.  
PART NAME  
QTY.  
REMARKS  
13320ZE2611  
13351ZE2010  
961006206000  
CRANKSHAFT (L- TYPE)  
WEIGHT BALANCER  
BEARING, RADIAL BALL (6206)  
1
1
1
INCLUDES ITEM W/  
*
12  
*
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 63  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — CYLINDER BARREL ASSY.  
CYLINDER BARREL ASSY.  
PAGE 64 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — CYLINDER BARREL ASSY.  
CYLINDER BARREL ASSY.  
NO.  
1
2
3
6
7
8
*
9
10  
11  
12  
13  
PART NO.  
PART NAME  
QTY.  
REMARKS  
12000ZE2834  
15510ZE2043  
16541ZE2010  
90131896650  
90446KE1000  
91201890003  
91353671003  
9405010000  
9410912000  
9425110000  
957010601200  
961006202000  
90013883000  
34150ZH7003  
CYLINDER ASSY., BALANCER + OIL ALERT ...... 1 .......... INCLUDES ITEMS W/  
*
SWITCH ASSY., OIL LEVEL  
SHAFT, GOVERNOR ARM  
BOLT, DRAIN PLUG  
WASHER 8.2 X17X0.8  
OIL SEAL 30X46X8  
O-RING 14MM ARAI  
NUT FLANGE 10MM  
WASHER, DRAIN PLUG 12MM  
PIN, LOCK 10MM  
BOLT, FLANGE 6X12  
BEARING, RADIAL BALL 6202  
BOLT, FLANGE 6X12 CT200  
ALERT UNIT, OIL  
1
1
2
1
1
1
1
2
1
2
1
1
1
14  
15  
16  
*
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 65  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — CYLINDER HEAD ASSY.  
CYLINDER HEAD ASSY.  
PAGE 66 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — CYLINDER HEAD ASSY.  
CYLINDER HEAD ASSY.  
NO.  
PART NO.  
PART NAME  
QTY.  
REMARKS  
1
12200ZH9000  
12204ZE2306  
12205ZE2305  
12216ZE2300  
12251ZE2800  
12310ZE2020  
12391ZE2020  
14775ZE2010  
90014ZE2000  
90042ZE2000  
90047ZE2000  
90441ZE2010  
9430112200  
CYLINDER HEAD COMP. ....................................... 1 .......... INCLUDES ITEMS W/  
*
2
*
3
*
4
*
5
6
7
GUIDE, VALVE, OS, OPTIONAL  
GUIDE, EX. VALVE, OS, OPTIONAL  
CLIP, VALVE GUIDE  
GASKET, CYLINDER HEAD  
COVER COMP., HEAD  
GASKET, CYLINDER HEAD COVER  
SEAT, VALVE SPRING  
BOLT, HEAD COVER  
BOLT, STUD 8X123  
BOLT, STUD 8X47  
WASHER COMP., HEAD COVER  
PIN A, DOWEL 12X20  
BULK HOSE, VACUUM 11X1000, 11X100  
BOLT, FLANGE 10X80  
1
1
1
1
1
1
1
1
2
2
1
2
1
4
1
1
8
10  
11  
12  
13  
14  
15  
16  
17  
17  
950051100130M  
957011008000  
9807956846  
SPARK PLUG, BPR6ES, NGK  
SPARK PLUG, W20EPR-U, DENSO  
9807956855  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 67  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — FAN COVER ASSY.  
FAN COVER ASSY.  
PAGE 68 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — FAN COVER ASSY.  
FAN COVER ASSY.  
NO.  
1
2
3
4
5
7
9
PART NO.  
PART NAME  
QTY.  
REMARKS  
16731ZE2003  
19610ZE2010ZC  
19631ZE2D00  
32197ZH8003  
36100ZE1015  
90013883000  
90684ZA0601  
CLIP, TUBE  
1
1
1
1
1
6
1
COVER COMP., FAN *NH1* BLACK  
SHROUD  
SUB-HARNESS  
SWITCH ASSY., ENGINE STOP  
BOLT, FLANGE 6X12, CT200  
CLIP, WIRE HARNESS  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 69  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — FLYWHEEL ASSY.  
FLYWHEEL ASSY.  
PAGE 70 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — FLYWHEEL ASSY.  
FLYWHEEL ASSY.  
NO.  
1
2
4
7
PART NO.  
PART NAME  
QTY.  
REMARKS  
19511ZE2000  
28450ZE2W11  
31100ZE2010  
90201ZE3V00  
90741ZE2000  
FAN, COOLING  
1
1
1
1
1
PULLEY COMP., STARTER, SCREEN GRID  
FLYWHEEL COMP.  
NUT, SPECIAL 16MM  
8
KEY, SPECIAL WOODRUFF 25X18  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 71  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — MUFFLER ASSY.  
MUFFLER ASSY.  
PAGE 72 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — MUFFLER ASSY.  
MUFFLER ASSY.  
NO.  
1
2
3
4
5
6
7
8
PART NO.  
PART NAME  
QTY.  
1
1
1
1
1
1
1
1
1
1
6
3
1
5
REMARKS  
18310ZE2W00  
18320ZE2W01  
18323ZE2W00  
18330ZE2W00  
18331ZE2810  
18333ZE3800  
18355ZE2010  
18381ZE2W10  
18381ZE2800  
90013883000  
90050ZE1000  
90055ZE1000  
90050ZE1000  
9405008000  
MUFFLER  
PROTECTOR, MUFFLER  
PROTECTOR, EX. PIPE  
PIPE, EX.  
CAP, MUFFLER  
GASKET, EX. PIPE  
ARRESTER, SPARK  
GASKET, MUFFLER (ARRESTER)  
GASKET, MUFFLER  
BOLT, FLANGE (6 X 12) (CT200)  
SCREW, TAPPING (5 X 8)  
SCREW, TAPPING (4 X 6)  
SCREW, TAPPING (5 X 8) (OPTIONAL)  
NUT, FLANGE (8MM)  
9
10  
11  
12  
13  
14  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 73  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — FUELTANK ASSY.  
FUEL TANK ASSY.  
PAGE 74 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — FUELTANK ASSY.  
FUEL TANK ASSY.  
NO.  
1
2
3
5
6
*
8
11  
12  
13  
14  
15  
PART NO.  
PART NAME  
RUBBER SUPPORTER 107MM  
JOINT, FUEL TANK  
TANK COMP., FUEL *NH1*, BLACK  
CAP COMP., FUEL FILLER .................................... 1 .......... INCLUDES ITEMS W/  
GASKET, FUEL FILLER CAP  
FILTER, FUEL  
O-RING 14MM, ARAI  
NUT, FLANGE 8MM  
BULK HOSE, FUEL 4.5X3000, 4.5X222  
CLIP, TUBE, B8  
BOLT, FLANGE 8X25  
QTY.  
REMARKS  
16854ZH8000  
16955ZE1000  
17510ZE2010ZD  
17620ZH7023  
17631ZH7003  
17672ZE2W01  
91353671003  
9405008000  
1
1
1
*
1
1
1
2
1
2
2
950014500360M  
9500202080  
957010802500  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 75  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2ENGINE — IGNITION ASSY.  
IGNITION COIL ASSY.  
PAGE 76 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2ENGINE — IGNITION ASSY.  
IGNITION COIL ASSY.  
NO.  
1
2
6
8
PART NO.  
PART NAME  
QTY.  
REMARKS  
30500ZE2023  
30700ZE1013  
31512ZE2000  
36101ZE1010  
90015883000  
COIL ASSY., IGNITION  
CAP ASSY., NOISE SUPPRESSOR  
GROMMET, WIRE  
1
1
1
1
2
WIRE, STOP SWITCH 370MM  
BOLT, FLANGE 6X28  
11  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 77  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — PISTON ASSY.  
PISTON ASSY.  
PAGE 78 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — PISTON ASSY.  
PISTON ASSY.  
NO.  
1
1
1
1
2
2
2
2
3
4
4
5
*
6
PART NO.  
PART NAME  
QTY.  
REMARKS  
13010ZE2013  
13011ZE2013  
13012ZE2013  
13013ZE2013  
13101ZE2W00  
13102ZE2W00  
13103ZE2W00  
13104ZE2W00  
13111ZE2000  
13200ZE2000  
13200ZE2305  
90001ZE8000  
90551ZE1000  
RING SET, PISTON, STD.  
RING SET, PISTON, OS 0.25, OPTIONAL  
RING SET, PISTON, OS 0.50, OPTIONAL  
RING SET, PISTON, 0.75, OPTIONAL  
PISTON, STANDARD  
1
1
1
1
1
1
1
1
1
PISTON, OS 0.25, OPTIONAL  
PISTON, OS 0.50, OPTIONAL  
PISTON, 0.75, OPTIONAL  
PIN, PISTON  
ROD ASSY., CONNECTING STANDARD ................ 1 .......... INCLUDES ITEMS W/  
ROD ASSY., CONNECTING, US 0.25, OPT.  
BOLT, CONNECTING ROD  
*
1
2
2
CLIP, PISTON PIN 18MM  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 79  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — RECOIL STARTER ASSY.  
RECOIL STARTER ASSY.  
PAGE 80 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — RECOIL STARTER ASSY.  
RECOIL STARTER ASSY.  
NO.  
PART NO.  
PART NAME  
QTY.  
REMARKS  
1
28400ZE2W01ZB  
28410ZE2W01ZB  
28421ZE2W01  
28422ZE2W01  
28441ZE2W01  
28442ZE2W01  
28443ZE2W01  
28444ZE2W01  
28461ZE2W02  
28462ZE2W11  
90004ZE2W01  
90008ZE2003  
STARTER ASSY., RECOIL *NH1*, BLK ............... 1 ......... INCLUDES ITEMS W/  
*
2
3
CASE COMP., RECOIL STARTER *NH1*, BLK  
PULLEY, RECOIL STARTER  
RATCHET, STARTER  
SPRING, FRICTION  
SPRING, STARTER RETURN  
SPRING RATCHET  
RETAINER, SPRING  
GRIP, STARTER  
ROPE, RECOIL STARTER  
SCREW, CENTER  
BOLT, FLANGE 6X10  
1
1
2
1
1
2
1
1
1
1
3
*
*
4
5
*
*
6
7
*
*
8
*
10  
*
11  
*
13  
*
14  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 81  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — GEAR REDUCTION ASSY.  
GEAR REDUCTION ASSY.  
PAGE 82 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — GEAR REDUCTION ASSY.  
GEAR REDUCTION ASSY.  
NO.  
1
2
3
4
5
6
7
8
PART NO.  
PART NAME  
QTY.  
REMARKS  
11500ZE2620  
11521ZE2800  
22103ZE2620  
23220ZE2621  
23710ZE2621  
90401ZE2620  
90402ZE2620  
90473842000  
90745ZE2600  
91201890003  
9430108140  
COVER ASSY, REDUCTION CASE ............. 1 .......... INCLUDES ITEMS W/  
GASKET, CHAIN CASE COVER  
GEAR, PRIMARY DRIVE (17T)  
COUNTERSHAFT  
SHAFT, P.T.O. (H- TYPE)  
SHIM A (OPTIONAL)  
SHIM B (OPTIONAL)  
WASHER (8MM)  
1
1
1
1
AR  
AR  
1
1
1
2
1
6
1
9
KEY (6.3 X 6.3 X 43)  
10  
11  
12  
13  
14  
15  
OIL SEAL (30 X 46 X 8)  
PIN A, DOWEL ( 8 X 14)  
BOLT, FLANGE (8 X 25)  
BOLT, FLANGE (8 X 40)  
BEARING, RADIAL BALL (6206)  
BEARING, RADIAL BALL (6302)  
957010802500  
957010804000  
961006206000  
961006302000  
1
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 83  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — LABEL ASSY.  
LABEL ASSY.  
PAGE 84 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
HONDA GX240K1HA2 ENGINE — LABEL ASSY.  
LABELS ASSY.  
NO.  
1
2
3
5
15  
16  
PART NO.  
PART NAME  
QTY.  
REMARKS  
87521ZE2W01  
87522ZE1810  
87522ZH9000  
87528ZE2810  
87586ZH7W00  
87532ZH8810  
EMBLEM, INTERNAL  
MARK, CAUTION, EXTERNAL  
LABEL, CAUTION  
1
1
1
1
1
1
MARK, CHOKE, EXTERNAL  
LABEL, FUEL CAUTION  
MARK, OIL ALERT  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 85  
Download from Www.Somanuals.com. All Manuals Search And Download.  
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  
Every effort will be made to provide adequate  
notice of changes; however, prices and  
equipment specifications are subject to change  
without notice.  
SPECIAL EXPEDITING SERVICE  
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 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.  
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.  
Price changes are effective on a specific date  
and all orders received on or after that date will  
be billed at the revised price.  
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 shipment  
to the designated Warehouse.  
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.  
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.  
LIMITATION OF SELLER’S LIABILITY  
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.  
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.  
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.  
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.  
LIMITATION OF WARRANTIES  
5. Special order items are not returnable for  
credit.  
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  
6. Credit on returned parts and units will be  
issued at actual dealer net price at time of  
purchase less 15% restocking charge.  
Parts: FOB Carson, California or Boise,  
Idaho. See Freight Policy for details and  
additional discounts.  
7. All returned shipments are to be made to  
the STOW designated receiving point,  
freight prepaid at the sender’s expense.  
STOW CONSTRUCTION EQUIPMENT  
POST OFFICE BOX 6254  
CARSON, CALIFORNIA 90749  
310-661-4242 • 877-BUY-STOW  
FAX:310-604-9237  
E-MAIL: stow@stowmfg.com  
www.stowmfg.com  
Atlanta • Boise • Newark • Quebec, Canada  
Manchester, UK • Rio de Janeiro, BR • Puebla, MX  
PAGE 86 — MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
NOTE PAGE  
MQ STOW MS20H/MS20E MIXER — PARTS & OPERATION MANUAL — REV. #3 (08/10/06) — PAGE 87  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PARTS AND OPERATION MANUAL  
HERE'S HOW TO GET HELP  
PLEASE HAVE THE MODEL AND SERIAL NUMBER  
ON-HAND WHEN CALLING  
PARTS DEPARTMENT  
800-427-1244 or 310-537-3700  
FAX: 800-672-7877 or 310-637-3284  
^6668  
SERVICE DEPARTMENT/TECHNICAL ASSISTANCE  
800-478-1244 or 310-537-3700  
FAX: 310- 537-4259  
WARRANTY DEPARTMENT  
888-661-4279, or 310-661-4279  
FAX: 310- 537-1173  
MAIN  
800-421-1244 or 310-537-3700  
FAX: 310-537-3927  
STOWCONSTRUCTIONEQUIPMENT  
A DIVISION OF MULTIQUIP INC.  
POST OFFICE BOX 6254  
DIVISION OF MULTIQUIP INC.  
PARTS DEPARTMENT:  
800-427-1244  
FAX: 800-672-7877  
A
CARSON, CALIFORNIA 90749  
SERVICE DEPARTMENT/TECHNICAL ASSISTANCE:  
800-478-1244  
FAX:310-631-5032  
310-537-3700 • 888-252-STOW [888-252-7869]  
FAX:310-537-1986 • FAX:800-556-1986  
E-MAIL: stow@multiquip.com • WWW: stowmfg.com  
Download from Www.Somanuals.com. All Manuals Search And Download.  

Sharp Blu ray Player BD HP52U User Manual
Sharp Computer Monitor PN 455 User Manual
Sharp Fax Machine AL 2060 User Manual
Silvercrest Kitchen Utensil SEAS 60 A1 User Manual
Snapper Tiller 1690194 User Manual
Sonance Stereo System C4630 SE User Manual
Sony Headphones 4 169 775 121 User Manual
Sony Stereo Receiver STR DA3100ES User Manual
Subaru Automobile 2007 B9 Tribeca User Manual
Targus Computer Hardware TGRMS20 User Manual