FLEX SHAFT GRINDER
MODEL G9928
INSTRUCTION MANUAL
COPYRIGHT © MARCH, 2002 BY GRIZZLY INDUSTRIAL, INC.
1821 VALENCIA ST., BELLINGHAM, WA 98227
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
PRINTED IN CHINA
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SAFETY
For Your Own Safety Read Instruction Manual
Before Operating This Equipment
The purpose of safety symbols is to attract your attention to possible hazardous
conditions. This manual uses a series of symbols and signal words which are
intended to convey the level of importance of the safety messages. The progres-
sion of symbols is described below. Remember that safety messages by them-
selves do not eliminate danger and are not a substitute for proper accident pre-
vention measures.
Indicates an imminently hazardous situation which, if
not avoided, WILL result in death or serious injury.
Indicates a potentially hazardous situation which, if
not avoided, COULD result in death or serious injury.
Indicates a potentially hazardous situation which, if
not avoided, MAY result in minor or moderate injury.
It may also be used to alert against unsafe practices.
This symbol is used to alert the user to useful information
about proper operation of the equipment.
NOTICE
Safety Instructions For Power Tools
5. KEEP CHILDREN AND VISITORS
AWAY. All children and visitors
should be kept a safe distance from
work area.
1. KEEP ALL SAFETY DEVICES IN
PLACE and in working order.
2. REMOVE ADJUSTING KEYS AND
WRENCHES. Form habit of check-
ing to see that keys and adjusting
wrenches are removed from tool
before operation.
6. MAKE
WORKSHOP
CHILD
PROOF with padlocks, master
switches, or by removing starter
keys.
3. KEEP WORK AREA CLEAN.
Cluttered areas and benches invite
accidents.
7. DO NOT FORCE TOOL. It will do
the job better and safer at the rate
for which it was designed.
4. DO NOT USE IN DANGEROUS
ENVIRONMENT. Do not use power
tools in damp or wet locations, or
where any flammable or noxious
fumes may exist. Keep work area
well lighted.
8. USE THE RIGHT TOOL. Do not
force tool or attachment to do a job
for which it was not designed.
9. DO NOT USE UNDER THE INFLU-
ENCE OF DRUGS OR ALCOHOL.
G9928 Flex Shaft Grinder
-1-
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Safety Instructions For Power Tools
10. WEAR PROPER APPAREL. Do not
ACCESSORIES.
Consult
the
wear loose clothing, gloves, neck-
ties, rings, bracelets, or other jewel-
ry which may get caught in moving
parts. Non-slip footwear is recom-
mended. Wear protective hair cover-
ing to contain long hair.
owner’s manual for recommended
accessories. The use of improper
accessories may cause risk of injury.
19. CHECK DAMAGED PARTS. Before
further use of the tool, a guard or
other part that is damaged should be
carefully checked to determine that it
will operate properly and perform its
intended function. Check for align-
ment of moving parts, binding of
moving parts, breakage of parts,
mounting, and any other conditions
that may affect its operation. A guard
or other part that is damaged should
be properly repaired or replaced.
11. ALWAYS USE SAFETY GLASSES.
Also use face or dust mask if cutting
operation is dusty. Everyday eye-
glasses only have impact resistant
lenses, they are NOT safety glass-
es.
12. WEAR APPROVED HEARING
PROTECTION.
13. SECURE WORK. Use clamps or a
vise to hold work when practical. It is
safer than using your hand and frees
both hands to operate tool.
20. NEVER ALLOW UNTRAINED
USERS TO RUN THIS TOOL
WHILE UNSUPERVISED.
21. IF YOU ARE UNSURE OF THE
INTENDED OPERATION, STOP
USING THE TOOL.
14. DO NOT OVERREACH. Keep prop-
er footing and balance at all times.
15. MAINTAIN TOOLS WITH CARE.
Keep tools sharp and clean for best
and safest performance. Follow
instructions for lubricating and
changing accessories.
22. DO NOT BEND SHAFT MORE
THAN 90 DEGREES. Make sure the
Flexible Shaft (P9928021) is not
bent more than a 90 degree angle.
If the Flexible Shaft is kinked or
crimped, it could cause inefficient
grinder operation and create a safe-
ty hazard. Note: Performance of the
Flexible Shaft Grinder may vary
depending on local line voltage or
use of an extension cord.
16. REDUCE THE RISK OF UNINTEN-
TIONAL STARTING. Make sure
switch is in off position before plug-
ging in.
17. DISCONNECT TOOLS before ser-
vicing and changing accessories.
18. USE
THE
RECOMMENDED
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G9928 Flex Shaft Grinder
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INTRODUCTION
Most importantly, we stand behind our
Commentary
tools. If you have any service questions or
parts requests, please call or write us at
the location listed below.
We are proud to offer the Grizzly Model
G9928 Flex Shaft Grinder. This model is
part of a growing Grizzly family of fine
power tools. When used according to the
guidelines set forth in this manual, you can
expect years of trouble-free, enjoyable
operation and proof of Grizzly’s commit-
ment to customer satisfaction.
Grizzly Industrial, Inc.
1203 Lycoming Mall Circle
Muncy, PA 17756
Phone: (570) 546-9663
Fax: (800) 438-5901
E-Mail: [email protected]
The Model G9928 features a 42" long flex
shaft to maneuver around your workpiece,
a foot pedal to control the speed from 0 to
15,000 R.P.M., a motor hanger, and a 5⁄32"
keyed chuck handpiece. To use chisels,
please order H0757 4-Pc. Carving Chisels
from the current catalog.
We are pleased to provide this manual
with the Model G9928. It was written to
encourage safety considerations and
guide you through general operating pro-
cedures and maintenance. This manual
represents our effort to produce the best
documentation possible.
Read the manual before assembly
and operation. Become familiar with
this tool, its safety instructions, and
its operation before beginning any
work. Serious personal injury may
result if safety or operational infor-
mation is not understood or fol-
The specifications, details, and photo-
graphs in this manual represent the Model
G9928 as supplied when the manual was
prepared. However, owing to Grizzly’s
policy of continuous improvement, chang-
es may be made at any time with no obli-
gation on the part of Grizzly. If you have
any comments regarding this manual,
please write to us at the address below:
Grizzly Industrial, Inc.
Technical Documentation
P.O. Box 2069
C
/
O
Bellingham, WA 98227-2069
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G9928 Flex Shaft Grinder
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OPERATION
Operating this tool can propel
objects into the air, causing immedi-
ate eye damage. To protect yourself,
always wear American National
Standards Institute (ANSI) approved
safety glasses or goggles when oper-
ating this equipment.
Under normal working conditions
and use, it is normal for the Motor
Housing to become hot. However,
the hot surface may cause personal
injury if touched or present a possi-
ble danger of an extreme fire hazard
if near flammable material. If the
Flexible Shaft Grinder is used for a
prolonged period of time and the
motor housing becomes EXTREME-
LY HOT, stop using the machine and
let it cool down.
OPERATION
1. Before using the Flexible Shaft
Grinder, determine a location in the
work area to mount the Holder and the
Hanger. Drive (2) wood screws
through (2) Electrical Rings and
through the Hanger to the mounting
location selected. Attach the Hanger
to the Motor Housing with (2) screws.
2. The Flex Shaft and Flex Shaft Housing
need to be lubricated with a light lithi-
um lubricant or machine oil. Use only
as small amount. Too much lubricant
can become messy and possibly get
on your workpiece. Do not use auto-
motive grease as it is too viscous.
3. A setscrew holds the Flex Shaft to the
Motor Shaft. When the Flex Shaft is
secure to the Motor Shaft, thread the
end of the Flex Shaft Housing onto the
base of the Motor Housing. Be sure
that the Flexible Shaft assembly is not
bent more than 90 degrees or kinked.
4. The Grinder Head fits onto the end of
the Flex Shaft. It is secure when you
hear a snap. To remove the Grinder
Head from the Flex Shaft, firmly grasp
the Grinder Head and Flex Shaft with
two hands and pull apart.
5. Loosen the Drill Chuck with the Chuck
Key. Insert the desired bit and tighten
the Drill Chuck with the Chuck Key.
6. Attach the Foot Control as follows.
Insert the Plug into the Female Plug.
Insert the Power Plug into the electri-
cal outlet. The depth of the Foot
Control can be set by using the
setscrew on the Foot Control, this will
allow the operator to adjust for desired
maximum speed. Tightening and low-
ering the screw will allow for greater
speeds. Loosening and raising the
screw will limit the speed allowed by
the Foot Control.
7. Make sure all safety instructions have
been followed before turning the
machine “ON”.
8. Once the tool is on, select the desired
speed by using the Foot Control.
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G9928 Flex Shaft Grinder
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MAINTENANCE
LUBRICATING FLEX SHAFT
The Flex Shaft and Flex Shaft Housing
should be lubricated after every 8 hours of
use. A small amount of light lithium lubri-
cant or machine oil applied to the length of
the Flex Shaft is all that is needed. Too
much lubricant can become messy and
possibly get on your workpiece. Do not
use automotive grease as it is too vis-
cous.
!
REPLACEMENT ACCESSORIES
Should you need to order replacement
parts for your Model G9928, please refer
to the following parts diagram and list.
Disconnect power to the machine
when performing any maintenance,
assembly or adjustments. Failure to
do this may result in serious person-
al injury.
(1, 2, 3)
4
CARBON BRUSH REPLACEMENT
Normal Carbon Brush life is 500–2000
hours, depending on use. Always replace
both brushes when it is time for replace-
ment.
5
1. Use a small screwdriver and remove
the Carbon Brushes from the sides of
the Motor Housing. Be careful when
removing the brushes, as the brushes
are spring-loaded and may spring out.
If the brush does not spring out, gently
remove it using the tip of the screw-
driver. Examine the brush surface for
scratches or breakage. If the brush is
broken, replace immediately with a
replacement brush from Grizzly
Industrial, Inc.
6
7
Ref
Part #
Description
01 P9928022
02 P9928023
03 P9928024
04 P9928001
05 P9928025
06 P9928027
07 P9928021
08 P9928008
CHUCK HOUSING
BEARING 608Z
CHUCK
2. If the brush is not broken and is dirty,
remove the dirt using a pencil eraser.
Gently rub with the eraser until all of
the dirt has been removed. Remove all
eraser dust so it will not interfere with
the machine.
HANGER
CHUCK KEY
FOOT CONTROL
FLEX SHAFT
CARBON BRUSH (NOT SHOWN)
3. Reinstall the brushes and gently tight-
en with the screwdriver.
-5-
G9928 Flex Shaft Grinder
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WARRANTY AND RETURNS
Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original
purchaser from the date of purchase. This warranty does not apply to defects due directly
or indirectly to misuse, abuse, negligence, accidents, repairs or alterations or lack of main-
tenance. This is Grizzly’s sole written warranty and any and all warranties that may be
implied by law, including any merchantability or fitness, for any particular purpose, are here-
by limited to the duration of this written warranty. We do not warrant or represent that the
merchandise complies with the provisions of any law or acts unless the manufacturer so
warrants. In no event shall Grizzly’s liability under this warranty exceed the purchase price
paid for the product and any legal actions brought against Grizzly shall be tried in the State
of Washington, County of Whatcom.
We shall in no event be liable for death, injuries to persons or property or for incidental, con-
tingent, special, or consequential damages arising from the use of our products.
To take advantage of this warranty, contact us by mail or phone and give us all the details.
We will then issue you a “Return Authorization Number,” which must be clearly posted on
the outside as well as the inside of the carton. We will not accept any item back without this
number. Proof of purchase must accompany the merchandise.
The manufacturers reserve the right to change specifications at any time because they con-
stantly strive to achieve better quality equipment. We make every effort to ensure that our
products meet high quality and durability standards and we hope you never need to use this
warranty.
Please feel free to write or call us if you have any questions about the machine or the man-
ual.
Grizzly Industrial, Inc.
1203 Lycoming Mall Circle
Muncy, PA 17756
Phone: (570) 546-9663
Fax: (800) 438-5901
E-Mail:
Thank you again for your business and continued support. We hope to serve you again
soon!
-6-
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WARRANTY CARD
Name__________________________________________________________
Street__________________________________________________________
City____________________State________Zip_________
Phone Number____________E-Mail___________________FAX____________
Model #___________________________ Serial #_______________________
The following information is given on a voluntary basis. It will be used for marketing purposes to help
us develop better products and services. Of course, all information is strictly confidential.
9. How many of the machines checked above are
Grizzly? ____________
1. How did you learn about us?
___Advertisement
___Friend
___Catalog
___World Wide Web
___Other__________________________
___Card Deck
10. Which portable/hand held power tools do you own?
Check all that apply.
___Belt Sander
___Biscuit Joiner
___Circular Saw
___Detail Sander
___Drill/Driver
___Orbital Sander
___Palm Sander
___Portable Planer
___Saber Saw
___Reciprocating Saw
___Router
2. What is your annual household income?
___$20,000-$29,999
___$30,000-$39,999
___$40,000-$49,999
___$50,000-$59,999
___$60,000-$69,999
___$70,000-$79,999
___$80,000-$89,999
___$90,000 +
___Miter Saw
___Other_________________________________
3. What is your age group?
___20-29
11. What machines/supplies would you like Grizzly
Industrial to carry?
___50-59
___60-69
___70 +
___30-39
___40-49
________________________________________
________________________________________
________________________________________
________________________________________
4. How long have you been a woodworker?
___0 - 2 Years
___2 - 8 Years
___8 - 20 Years
___20+ Years
12. What new accessories would you like Grizzly
Industrial to carry?
5. How would you rank your woodworking skills?
________________________________________
________________________________________
________________________________________
________________________________________
___Simple
___Advanced
___Intermediate
___Master Craftsman
6. What stationary woodworking tools do you own?
Check all that apply.
13. What other companies do you purchase your tools
and supplies from?
___Air Compressor
___Band Saw
___Panel Saw
___Planer
_________________________________________
_________________________________________
_________________________________________
___Drill Press
___Power Feeder
___Radial Arm Saw
___Shaper
___Jointer
___Lathe
___Drum Sander
___Dust Collector
___Spindle Sander
___Table Saw
14. Do you think your purchase represents good value?
___Yes
___No
___Mortiser
___Wide Belt Sander
___Horiz.Boring Machine
___Vacuum Veneer Press
___Other______________________________
15. Would you recommend Grizzly to a friend?
___Yes ___No
16. Would you allow us to use your name as a refer-
ence for Grizzly customers in your area? Note: We
never use names more than three times.
7. How many of your woodworking machines are
Grizzly? _____________
___Yes
___No
8. Which benchtop tools do you own? Check all
that apply.
17.Comments:________________________________
_________________________________________
_________________________________________
_________________________________________
___1"x42" Belt Sander ___6" - 8" Grinder
___5" - 8" Drill Press ___Mini Lathe
___8" Table Saw
___Scroll Saw
___8" - 10" Bandsaw
___Disc/Belt Sander
___Spindle/Belt Sander ___Mini Jointer
___10"-12"Thickness Planer
___Other______________________________
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Send a Grizzly Catalog to a friend:
Name________________________________
Street________________________________
City______________State______Zip_______
FOLD ALONG DOTTED LINE
Place
Stamp
Here
GRIZZLY INDUSTRIAL, INC.
P.O. BOX 2069
BELLINGHAM, WA 98227-2069
TAPE ALONG EDGES--PLEASE DO NOT NAIL
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