Makita Grinder 906H 003485 User Manual

Die Grinder  
1/4”  
MODEL 906H  
003485  
I N S T R U C T I O N M A N U A L  
WARNING:  
For your personal safety, READ and UNDERSTAND before using.  
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.  
w w w. m a k i t a t o o l s . c o m  
 
5. Avoid body contact with grounded sur-  
faces such as pipes, radiators, ranges and  
refrigerators. There is an increased risk of  
electric shock if your body is grounded.  
14. Use safety equipment. Always wear eye  
protection. Dust mask, non-skid safety  
shoes, hard hat, or hearing protection must  
be used for appropriate conditions. Ordinary  
eye or sun glasses are NOT eye protection.  
6. Do not expose power tools to rain or wet  
conditions. Water entering a power tool will  
increase the risk of electric shock.  
Tool Use and Care  
15. Use clamps or other practical way to  
secure and support the workpiece to a  
stable platform. Holding the work by hand or  
against your body is unstable and may lead  
to loss of control.  
7. Do not abuse the cord. Never use the cord  
to carry the tools or pull the plug from an  
outlet. Keep cord away from heat, oil,  
sharp edges or moving parts. Replace  
damaged cords immediately. Damaged  
cords increase the risk of electric shock.  
16. Do not force tool. Use the correct tool for  
your application. The correct tool will do the  
job better and safer at the rate for which it is  
designed.  
8. When operating a power tool outside, use  
an outdoor extension cord marked “W-A”  
or “W”. These cords are rated for outdoor  
use and reduce the risk of electric shock.  
17. Do not use tool if switch does not turn it  
on or off. Any tool that cannot be controlled  
with the switch is dangerous and must be  
repaired.  
Personal Safety  
9. Stay alert, watch what you are doing and  
use common sense when operating a  
power tool. Do not use tool while tired or  
under the influence of drugs, alcohol, or  
medication. A moment of inattention while  
operating power tools may result in serious  
personal injury.  
18. Disconnect the plug from the power  
source before making any adjustments,  
changing accessories, or storing the tool.  
Such preventive safety measures reduce the  
risk of starting the tool accidentally.  
19. Store idle tools out of reach of children  
and other untrained persons. Tools are  
dangerous in the hands of untrained users.  
10. Dress properly. Do not wear loose cloth-  
ing or jewelry. Contain long hair. Keep  
your hair, clothing, and gloves away from  
moving parts. Loose clothes, jewelry, or long  
hair can be caught in moving parts.  
20. Maintain tools with care. Keep cutting  
tools sharp and clean. Properly maintained  
tools with sharp cutting edges are less likely  
to bind and are easier to control.  
11. Avoid accidental starting. Be sure switch  
is off before plugging in. Carrying tools with  
your finger on the switch or plugging in tools  
that have the switch on invites accidents.  
21. Check for misalignment or binding of  
moving parts, breakage of parts, and any  
other condition that may affect the tools  
operation. If damaged, have the tool ser-  
viced before using. Many accidents are  
caused by poorly maintained tools.  
12. Remove adjusting keys or wrenches  
before turning the tool on. A wrench or a  
key that is left attached to a rotating part of  
the tool may result in personal injury.  
22. Use only accessories that are recom-  
mended by the manufacturer for your  
model. Accessories that may be suitable for  
one tool, may become hazardous when used  
on another tool.  
13. Do not overreach. Keep proper footing  
and balance at all times. Proper footing and  
balance enables better control of the tool in  
unexpected situations.  
3
 
24. When servicing a tool, use only identical  
replacement parts. Follow instructions in  
the Maintenance section of this manual.  
Use of unauthorized parts or failure to follow  
Maintenance instructions may create a risk of  
electric shock or injury.  
SERVICE  
23. Tool service must be performed only by  
qualified repair personnel. Service or main-  
tenance performed by unqualified personnel  
could result in a risk of injury.  
USE PROPER EXTENSION CORD: Use only three-wire extension cords that have three-  
prong grounding-type plugs and three-pole receptacles that accept the tool's plug. Make  
sure your extension cord is in good condition. Replace or repair damaged or worn cord  
immediately. When using an extension cord, be sure to use one heavy enough to carry the  
current your product will draw. An undersized cord will cause a drop in line voltage resulting  
in loss of power and overheating. Table 1 shows the correct size to use depending on cord  
length and nameplate ampere rating. If in doubt, use the next heavier gage. The smaller the  
gage number, the heavier the cord.  
Table 1: Minimum gage for cord  
Volts  
120 V  
Total length of cord in feet  
Ampere Rating  
25 ft.  
50 ft.  
100 ft.  
150 ft.  
More Than  
Not More Than  
AWG  
0
6
10  
12  
6
18  
18  
16  
14  
16  
16  
16  
12  
16  
14  
14  
14  
12  
12  
10  
12  
16  
Not Recommended  
GROUNDING INSTRUCTIONS  
This tool should be grounded while in use to protect the operator from electric shock. The  
tool is equipped with a three-conductor cord and three-prong grounding type plug to fit the  
proper grounding type receptacle. The green (or green and yellow) conductor in the cord is  
the grounding wire. Never connect the green (or green and yellow) wire to a live terminal.  
Your unit is for use on 120 volts and has a plug that looks like Fig. “A”.  
4
 
An adapter Fig. “B” and “C” is available for connecting Fig. “A” type plugs to two-prong  
receptacles. The green-colored rigid ear, lug, etc., extending from the adapter must be con-  
nected to a permanent ground, such as a properly grounded outlet box.  
Adapter  
Grounding Means  
Cover of Grounded  
Grounding  
Blade  
Outlet Box  
Fig. A  
Fig. B  
Fig. C  
SPECIFIC SAFETY RULES  
USB006-2  
DO NOT let comfort or familiarity with product (gained from  
repeated use) replace strict adherence to grinder safety rules. If  
you use this tool unsafely or incorrectly, you can suffer serious  
personal injury.  
1. Accessories must be rated for at least the  
speed recommended on the tool warning  
label. Wheels and other accessories running  
over rated speed can fly apart and cause  
injury.  
cracked or damaged wheel immediately.  
Run the tool at no load for about a minute,  
holding tool away from others. If wheel is  
flawed, it will likely separate during this  
test.  
2. Hold tool by insulated gripping surfaces  
when performing an operation where the  
cutting tool may contact hidden wiring or  
its own cord. Contact with a “live” wire will  
make exposed metal parts of the tool “live”  
and shock the operator.  
5. Hold the tool firmly.  
6. Keep hands away from rotating parts.  
7. Make sure the wheel is not contacting the  
workpiece before the switch is turned on.  
8. Before using the tool on an actual work-  
piece, let it run for a while. Watch for  
vibration or wobbling that could indicate  
poor installation or a poorly balanced  
wheel.  
3. Always use safety glasses or goggles.  
Ordinary eye or sun glasses are NOT  
safety glasses.  
4. Check the wheel carefully for cracks or  
damage  
before  
operation.  
Replace  
5
 
9. Watch out for flying sparks. Hold the tool  
so that sparks fly away from you and other  
persons or flammable materials.  
13. Do not use water or grinding lubricant.  
14. Do not use this tool as cutter.  
15. ALWAYS wear proper apparel including  
long sleeve shirts, leather gloves and  
shop aprons to protect skin from contact  
with hot grindings.  
10. Do not leave the tool running. Operate the  
tool only when hand-held.  
11. Do not touch the workpiece immediately  
after operation; it may be extremely hot  
and could burn your skin.  
16. Use of this tool to grind or sand some  
products, paints and wood could expose  
user to dust containing hazardous sub-  
stances. Use appropriate respiratory pro-  
tection.  
12. Always be sure you have a firm footing.  
Be sure no one is below when using the  
tool in high locations.  
SAVE THESE INSTRUCTIONS  
WARNING:  
MISUSE or failure to follow the safety rules stated in this  
instruction manual may cause serious personal injury.  
6
 
FUNCTIONAL  
DESCRIPTION  
CAUTION:  
Always be sure that the tool is switched off and  
unplugged before adjusting or checking function on the  
tool.  
003487  
Switch action  
CAUTION:  
Before plugging in the tool, always check to see that the  
tool is switched off.  
Switch can be locked in ONposition for ease of  
operator comfort during extended use. Apply caution  
when locking tool in ONposition and maintain firm  
grasp on tool.  
1
1. Switch lever  
To start the tool, move the switch lever to the ONposition.  
To stop the tool, move the switch lever to the OFFposition.  
ASSEMBLY  
CAUTION:  
Always be sure that the tool is switched off and  
unplugged before carrying out any work on the tool.  
003492  
Installing or removing wheel point  
Loosen the collet nut and insert the wheel point into the collet  
nut. Use the smaller wrench to hold the spindle and the  
larger one to tighten the collet nut securely.  
2
1
3
1. Wrench 17  
2. Wrench 10  
3. Collet nut  
003494  
The wheel point should not be mounted more than 10 mm (3/  
8) from the collet nut. Exceeding this distance could cause  
vibration or a broken shaft.  
To remove the wheel point, follow the installation procedure  
in reverse.  
CAUTION:  
10 mm (3/8) Max.  
A 1/4collet cone is provided as standard equipment.  
Use an optional collet cone 1/8to install a 1/8shank  
wheel point.  
7
 
OPERATION  
003496  
Turn the tool on without the wheel point making any contact  
with the workpiece and wait until the wheel point attains full  
speed. Then apply the wheel point to the workpiece gently.  
To obtain a good finish, move the tool in the leftward direction  
slowly.  
CAUTION:  
Apply light pressure on the tool. Excessive pressure on  
the tool will only cause a poor finish and overloading of  
the motor.  
003498  
Dressing wheel point  
When the wheel point becomes loadedwith various bits  
and particles, you should dress the wheel point with the  
dressing stone.  
1
1. Dressing stone  
MAINTENANCE  
CAUTION:  
Always be sure that the tool is switched off and  
unplugged before attempting to perform inspection or  
maintenance.  
001145  
Replacing carbon brushes  
Remove and check the carbon brushes regularly. Replace  
when they wear down to the limit mark. Keep the carbon  
brushes clean and free to slip in the holders. Both carbon  
brushes should be replaced at the same time. Use only iden-  
tical carbon brushes.  
1
1. Limit mark  
8
 
003489  
Use a screwdriver to remove the brush holder caps. Take out  
the worn carbon brushes, insert the new ones and secure  
the brush holder caps.  
1
To maintain product SAFETY and RELIABILITY, repairs, any  
other maintenance or adjustment should be performed by  
Makita Authorized or Factory Service Centers, always using  
Makita replacement parts.  
2
1. Brush holder cap  
2. Screwdriver  
ACCESSORIES  
CAUTION:  
These accessories or attachments are recommended for  
use with your Makita tool specified in this manual. The  
use of any other accessories or attachments might  
present a risk of injury to persons. Only use accessory  
or attachment for its stated purpose.  
If you need any assistance for more details regarding these  
accessories, ask your local Makita service center.  
Wheel points  
Collet cone (1/4", 1/8")  
Wrench 10  
Wrench 17  
Dressing stone  
9
 
Memo  
10  
 
Memo  
11  
 
Memo  
12  
 
First-Class  
Postage  
Required  
Post Office will  
not deliver  
without proper  
postage.  
Makita U.S.A., Inc.  
14930 Northam Street  
La Mirada, CA 90638-5753  
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MAIL THIS PORTION  
Your answers to the following questions are appreciated.  
1.This product was purchased from:  
3. How did you learn about this product:  
Home Center  
Other (  
)
Magazine  
Radio  
Hardware/Lumber Store  
Tool Distributor  
From Dealer  
Newspaper  
Store Display  
Catalog  
Exhibition  
From Friend  
Previous Usage  
Other (  
Industrial Supply  
Construction Supply  
)
2. Use of the product is intended for:  
4. Most favored points are:  
Construction Trade  
Industrial Maintenance  
Home Maintenance  
Hobby  
Design  
Repair Service  
Durability  
Power  
Features  
Size  
Price  
Other (  
)
Other (  
)
Makita Brand  
5. Any comments:  
DATE PURCHASED  
MONTH  
MODEL NO.  
DAY  
YEAR  
SERIAL NO.  
STATUS  
SEX  
Married Single  
M
F
INTL.  
LAST NAME / COMPANY NAME  
STREET ADRESS  
CITY  
AREA  
CODE  
STATE  
ZIP CODE  
PHONE  
40-49  
Under 19  
20-29  
30-39  
50-60  
Over 60  
AGE:  
BE SURE TO COMPLETE THE CUSTOMERS PORTION OF THIS FORM AND RETAIN FOR YOUR RECORDS.  
Please return this portion by facsimile or mail.  
Facsimile No: (714) 522-8133  
 
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FACTORY SERVICE CENTERS  
1-800-4-MAKITA  
RETAIN THIS PORTION FOR YOUR RECORDS  
ARIZONA  
FLORIDA  
MISSOURI  
PENNSYLVANIA  
1704 Babcock Blvd.  
Pittsburgh, PA 15209  
(412) 822-7370  
3707 E. Broadway Rd., Ste. 6  
Phoenix, AZ 85040  
(602) 437-2850  
750 East Sample Road  
Pompano Beach, FL 33064  
(954) 781-6333  
9876 Watson Road  
St. Louis, MO 63126-2221  
(314) 909-9889  
CALIFORNIA  
GEORGIA  
NEBRASKA  
PUERTO RICO  
41850 Christy St.  
Fremont, CA 94538-5107  
(510) 657-9881  
4680 River Green Parkway NW  
Duluth, GA 30096  
(770) 476-8911  
4129 S. 84th St.  
Omaha, NE 68127  
(402) 597-2925  
200 Guayama St.  
Hato Rey, PR 00917  
(787) 250-8776  
14930 Northam St.  
La Mirada, CA 90638-5753  
(714) 522-8088  
ILLINOIS  
NEVADA  
3375 S. Decatur Blvd.  
Suites. 22 - 24  
Las Vegas, NV 89102  
(702) 368-4277  
TENNESSEE  
1120 Elm Hill P.  
Suile 170 Nashville, TN 372  
(615) 248-3321  
1450 Feehanville Dr.  
Mt. Prospect, IL 60056-6011  
(847) 297-3100  
1970 Fulton Avenue  
Sacramento, CA 95825  
(916) 482-5197  
MARYLAND  
TEXAS  
7674 Clairemont Mesa Blvd.  
San Diego, CA 92111  
(858) 278-4471  
7397 Washington Boulevard,  
Suite 104 Elkridge, MD 21075  
(410) 796-4401  
NEW JERSEY  
12801 Stemmons Fwy Ste. 809  
Farmers Branch, TX 75234  
(972) 243-1150  
251 Herrod Blvd.  
Dayton, NJ 08810-1539  
(609) 655-1212  
16735 Saticoy St., Ste. 105  
Van Nuys, CA 91406  
(818) 782-2440  
12701 Directors Dr.  
Stafford, TX 77477-3701  
(281) 565-8665  
MASSACHUSETTS  
232 Providence Hwy.  
Westwood, MA 02090  
(781) 461-9754  
NEWYORK  
4917 Genessee Street  
Cheektowaga, NY 14225  
(716) 685-9503  
3453 IH-35 North, Ste. 101  
San Antonio, TX 78219  
(210) 228-0676  
COLORADO  
11839 E. 51st Ave.  
Denver, CO 80239-2709  
(303) 371-2850  
MINNESOTA  
6427 Penn Ave. South  
Richfield, MN 55423  
(612) 869-5199  
OREGON  
828 19th Avenue, N.W.  
Portland, OR 97209  
(503) 222-1823  
WISCONSIN  
Lincoln Plaza Shopping Ctr.  
2245 S. 108th St. West Allis, WI  
53227  
(414) 541-4776  
CUSTOMER’S RECORD  
Date Purchased  
When you need service: Send  
complete tool (prepaid) to one  
of the Makita Factory Service  
Centers listed, or to an Authorized  
Makita Service Center. Be sure  
to attach a letter to the outside of  
the carton detailing the problem  
with your tool.  
Dealer’s Name & Address  
Model No.  
Serial No.  
15  
 
WARNING  
Some dust created by power sanding, sawing, grinding, drilling, and other  
construction activities contains chemicals known to the State of California  
to cause cancer, birth defects or other reproductive harm. Some examples  
of these chemicals are:  
lead from lead-based paints,  
crystalline silica from bricks and cement and other masonry products, and  
arsenic and chromium from chemically-treated lumber.  
Your risk from these exposures varies, depending on how often you do this  
type of work. To reduce your exposure to these chemicals: work in a well  
ventilated area, and work with approved safety equipment, such as those  
dust masks that are specially designed to filter out microscopic particles.  
MAKITA LIMITED ONE YEAR WARRANTY  
Warranty Policy  
Every Makita tool is thoroughly inspected and tested before leaving the factory. It is warranted to be free of  
defects from workmanship and materials for the period of ONE YEAR from the date of original purchase.  
Should any trouble develop during this one year period, return the COMPLETE tool, freight prepaid, to one of  
Makitas Factory or Authorized Service Centers. If inspection shows the trouble is caused by defective  
workmanship or material, Makita will repair (or at our option, replace) without charge.  
This Warranty does not apply where:  
repairs have been made or attempted by others:  
repairs are required because of normal wear and tear:  
the tool has been abused, misused or improperly maintained:  
alterations have been made to the tool.  
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT, INCIDENTAL OR CONSEQUENTIAL  
DAMAGES FROM THE SALE OR USE OF THE PRODUCT. THIS DISCLAIMER APPLIES BOTH DURING  
AND AFTER THE TERM OF THIS WARRANTY.  
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED WARRANTIES OF  
MERCHANTABILITYAND FITNESS FOR A SPECIFIC PURPOSE,AFTER THE ONE YEAR TERM OF THIS  
WARRANTY.  
This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state.  
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above  
limitation or exclusion may not apply to you. Some states do not allow limitation on how long an implied  
warranty lasts, so the above limitation may not apply to you.  
Makita Corporation  
3-11-8, Sumiyoshi-cho,  
Anjo, Aichi 446-8502 Japan  
883498C066  
 

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