Impact Wrench
19 mm (3/4”)
MODEL 6906
002290
DOUBLE
INSULATION
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
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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.
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.
6. Do not expose power tools to rain or wet
conditions. Water entering a power tool will
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.
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.
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.
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.
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.
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.
19. Store idle tools out of reach of children
and other untrained persons. Tools are
dangerous in the hands of untrained users.
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.
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.
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.
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.
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.
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.
SERVICE
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.
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.
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.
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.
3
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USE PROPER EXTENSION CORD: Make sure your extension cord is in good condition.
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 num-
ber, 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
SPECIFIC SAFETY RULES
USB003-2
DO NOT let comfort or familiarity with product (gained from
repeated use) replace strict adherence to impact wrench safety
rules. If you use this tool unsafely or incorrectly, you can suffer
serious personal injury.
1. 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 tool “live” and
shock the operator.
4. Hold the tool firmly.
5. Always be sure you have a firm footing.
Be sure no one is below when using the
tool in high locations.
6. The proper fastening torque may differ
depending upon the kind or size of the
bolt. Check the torque with a torque
wrench.
2. Wear ear protectors.
3. Check the socket carefully for wear,
cracks or damage before installation.
SAVE THESE INSTRUCTIONS
WARNING:
MISUSE or failure to follow the safety rules stated in this
instruction manual may cause serious personal injury.
4
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FUNCTIONAL
DESCRIPTION
CAUTION:
•
Always be sure that the tool is switched off and
unplugged before adjusting or checking function on the
tool.
002312
Switch action
CAUTION:
•
Before plugging in the tool, always check to see that the
switch trigger actuates properly and returns to the “OFF”
1
position when released.
•
Change the direction of rotation only when the tool
comes to a complete stop. Changing it before the tool
stops may damage the tool.
1. Switch trigger
The switch is reversible, providing either clockwise or coun-
terclockwise rotation. To start the tool, simply pull the lower
part of the switch trigger for clockwise or the upper part for
counterclockwise. Release the switch trigger to stop.
ASSEMBLY
CAUTION:
•
Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
002332
Installing side grip (auxiliary handle)
Fit the side grip into the groove on the middle of the hammer
case and fasten securely.
1
1. Side grip
Selecting correct socket
Always use the correct size socket for bolts and nuts. An
incorrect size socket will result in inaccurate and inconsistent
fastening torque and/or damage to the bolt or nut.
5
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002338
Installing or removing socket
1
To install the socket, push it onto the anvil of the tool until it
locks into place.
2
To remove the socket, simply pull it off.
1. Socket
2. Anvil
The proper fastening torque may differ depending upon the
kind or size of the bolt, the material of the workpiece to be
fastened, etc. The relation between fastening torque and fas-
tening time is shown in the figure.
OPERATION
(ft.lbs)
700
N.m
(505)
Rated voltage
600
(433)
500
(361)
90% of rated voltage
400
(288)
300
(216)
200
(144)
100
(72)
3
7
8
0
1
2
4
5
6
(S)
Fastening time
Hold the tool firmly and place the socket over the bolt or nut.
Turn the tool on and fasten for the proper fastening time.
NOTE:
•
•
Hold the tool pointed straight at the bolt or nut.
Excessive fastening torque may damage the bolt/nut or
socket. Before starting your job, always perform a test
operation to determine the proper fastening time for your
bolt or nut.
6
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The fastening torque is affected by a wide variety of factors
including the following. After fastening, always check the
torque with a torque wrench.
1. Voltage
Voltage drop will cause a reduction in the fastening
torque.
2. Socket
•
Failure to use the correct size socket will cause a
reduction in the fastening torque.
•
A worn socket ( wear on the hex end or square end )
will cause a reduction in the fastening torque.
3. Bolt
•
Even though the torque coefficient and the class of
bolt are the same, the proper fastening torque will
differ according to the diameter of bolt.
•
Even though the diameters of bolts are the same, the
proper fastening torque will differ according to the
torque coefficient, the class of bolt and the bolt
length.
4. The use of the universal joint or the extension bar some-
what reduces the fastening force of the impact wrench.
Compensate by fastening for a longer period of time.
5. The manner of holding the tool or the material of driving
position to be fastened will affect the torque.
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
7
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002373
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.
•
•
•
•
•
•
•
Extension bar
Universal joint
Side grip
Hex wrench
Front bumper
Rear bumper
Steel carrying case
8
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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
Fold
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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 CUSTOMER’S 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
ALABAMA
COLORADO
KENTUCKY
NEW MEXICO
PUERTO RICO
2365 Pelham Parkway
Pelham, AL 35124
(205) 620-1791
11839 E. 51st Ave.
Denver, CO 80239-2709
(303) 371-2850
1215 S. Hurstbourne Parkway
Louisville, KY 40222
(502) 326-3740
5805 Menaul Blvd. NE
Albuquerque, NM 87110
(505) 881-4619
200 Guayama St.
Hato Rey, PR 00917
(787) 250-8776
ARIZONA
CONNECTICUT
508 Spring St.
Windsor Locks, CT 06096
(860) 292-6405
LOUSIANA
NEWYORK
TENNESSEE
3707 E. Broadway Rd., Ste. 6
Phoenix, AZ 85040
(602) 437-2850
5626 Jefferson Hwy.
Harahan, LA 70123
(504) 733-4138
4917 Genessee Street
Cheektowaga, NY 14225
(716) 685-9503
4655 Nolensville Rd.
Nashville, TN 37211
(615) 331-9922
131-35 31st Ave.
Flushing, NY 11354
(718) 886-0971
ARKANSAS
FLORIDA
MARYLAND
TEXAS
Shackleford Shopping Center
240 South Shackleford Rd.,
Ste. C
620 Douglas Ave. Suite 1302
Altamonte Springs, FL 32714
(407) 774-6000
7541 - 45 Ritchie Highway
Glen Burnie, MD 21061
(410) 590-0160
12801 Stemmons Fwy Ste. 809
Farmers Branch, TX 75234
(972) 243-1150
Little Rock, AR 72211
(501) 224-5733
NORTH CAROLINA
3501-G S. Tryon St.
Charlotte, NC 28217
(704) 527-0611
750 East Sample Road
Pompano Beach, FL 33064
(954) 781-6333
12701 Directors Dr.
Stafford, TX 77477-3701
(281) 565-8665
MASSACHUSETTS
232 Providence Hwy.
Westwood, MA 02090
(617) 461-9754
CALIFORNIA
41850 Christy St.
Fremont, CA 94538-5107
(510) 657-9881
Thompson Center Waters
5501 W. Waters Ave., Ste. 406
Tampa, FL 33634
3453 IH-35 North, Ste. 101
San Antonio, TX 78219
(210) 228-0676
OHIO
6253 E. Main St.
Columbus, OH 43213
(614) 860-0222
(813) 886-8292
MICHIGAN
1421 N. Clovis Ave., Ste. 112
Fresno, CA 93727
(559) 252-5166
37454 Ann Arbor Trail
Livonia, MI 48150
(313) 432-1012
UTAH
GEORGIA
6379 Pearl Road
Parma Heights, OH 44130
(440) 843-7555
145 E. 1300 S., Ste. 101
Salt Lake City, UT 84115
(801) 359-3410
4680 River Green Parkway
Duluth, GA 30096-2566
(770) 476-8911
14930 Northam St.
La Mirada, CA 90638-5753
(714) 522-8088
MINNESOTA
6427 Penn Ave. South
Richfield, MN 55423
(612) 869-5199
1617 E. Kemper Rd.
Sharonville, OH 45246
(513) 771-0788
VIRGINIA
5760 Northampton Blvd,. Ste.
102
Virginia Beach, VA 23455
(757) 460-0280
1970 Fulton Avenue
Sacramento, CA 95825
(916) 482-5197
HAWAII
4510 Salt Lake Blvd., Suite A7
Honolulu, HI 96818
(808) 847-0038
MISSOURI
OKLAHOMA
1440 South “E” Street
San Bernardino, CA 92408
(909) 885-1289
9876 Watson Road
St. Louis, MO 63126-2221
(314) 909-9889
552 E. Memorial Road
Oklahoma City, OK 73114
(405) 752-2655
ILLINOIS
WASHINGTON
1450 Feehanville Dr.
Mt. Prospect, IL 60056-6011
(847) 297-3100
22220 84th Ave. So., Bldg. A
Kent, WA 98032
(253) 395-8055
7674 Clairemont Mesa Blvd.
San Diego, CA 92111
(858) 278-4471
NEBRASKA
OREGON
4129 S. 84th St.
Omaha, NE 68127
(402) 597-2925
828 19th Avenue., N.W.
Portland, OR 97209
(503) 222-1823
1714 E.McFadden Ave., Unit M
Santa Ana, CA 92705
(714) 667-5066
INDIANA
WISCONSIN
8403 Michigan Road, Unit 1
Indianapolis, IN 46268
(317) 334-9980
Lincoln Plaza Shopping Ctr.
2245 S. 108th St. West Allis, WI
53227
NEVADA
3375 S. Decatur Blvd.
Suites. 22 - 24
Las Vegas, NV 89102
(702) 368-4277
PENNSYLVANIA
Springwater Plaza
364 Wilmington W. Chester
Pike
Glen Mills, PA 19342
(610) 459-4122
1565 Winchester B.
Campbell, CA 95008-0501
(408) 379-0377
(414) 541-4776
KANSAS
8819 W. 95th St.
Overland Park, KS 66212
(913) 642-1111
16735 Saticoy St., Ste. 105
Van Nuys, CA 91406
(818) 782-2440
NEW JERSEY
6200 Babcock Blvd
Pittsburgh, PA 15237
(412) 366-6363
251 Herrod Blvd.
Dayton, NJ 08810-1539
(609) 655-1212
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.
11
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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
Makita's 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
"MERCHANTABILITY" AND "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 form 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
883273D060
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