Cordless Impact
Driver
Equipped with Electric Brake
MODEL 6908D
002800
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.
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Electrical Safety
Tool Use and Care
4. A battery operated tool with integral bat-
teries or a separate battery pack must be
recharged only with the specified charger
for the battery. A charger that may be suit-
able for one type of battery may create a risk
of fire when used with another battery.
12. 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.
13. 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.
5. Use battery operated tool only with specif-
ically designated battery pack. Use of any
other batteries may create a risk of fire.
14. Do not use tool if switch does not turn it
on or off. A tool that cannot be controlled
with the switch is dangerous and must be
repaired.
Personal Safety
6. 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.
15. Disconnect battery pack from tool or
place the switch in the locked or off posi-
tion before making any adjustments,
changing accessories, or storing the tool.
Such preventive safety measures reduce the
risk of starting the tool accidentally.
7. 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.
16. Store idle tools out of reach of children
and other untrained persons. Tools are
dangerous in the hands of untrained users.
17. When battery pack is not in use, keep it
away from other metal objects like: paper
clips, coins, keys, nails, screws, or other
small metal objects that can make a con-
nection from one terminal to another.
Shorting the battery terminals together may
cause sparks, burns, or a fire.
8. Avoid accidental starting. Be sure switch
is in the locked or off position before
inserting battery pack. Carrying tools with
your finger on the switch or inserting the bat-
tery pack into a tool with the switch on invites
accidents.
9. 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.
18. Maintain tools with care. Keep cutting
tools sharp and clean. Properly maintained
tools with sharp cutting edge are less likely to
bind and are easier to control.
10. Do not overreach. Keep proper footing
and balance at all times. Proper footing and
balance enable better control of the tool in
unexpected situations.
19. Check for misalignment or binding of
moving parts, breakage of parts, and any
other condition that may affect the tool’s
operation. If damaged, have the tool ser-
viced before using. Many accidents are
caused by poorly maintained tools.
11. Use safety equipment. Always wear eye
protection. Dust mask, non-skid safety
shoes, hard hat, or hearing protection must
be used for appropriate conditions.
20. Use only accessories that are recom-
mended by the manufacturer for your
model. Accessories that may be suitable for
one tool may create a risk of injury when
used on another tool.
3
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22. 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
shock or injury.
SERVICE
21. Tool service must be performed only by
qualified repair personnel. Service or main-
tenance performed by unqualified personnel
may result in a risk of injury.
SPECIFIC SAFETY RULES
USB024-2
DO NOT let comfort or familiarity with product (gained from
repeated use) replace strict adherence to cordless impact driver
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.
Contact with a “live” wire will also make
exposed metal parts of the tool “live” and
shock the operator.
have to be plugged into an electrical out-
let.
3. Always be sure you have a firm footing.
Be sure no one is below when using the
tool in high locations.
4. Hold the tool firmly.
2. Be aware that this tool is always in an
operating condition, because it does not
5. Wear ear protectors.
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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SYMBOLS
USD302-1
The followings show the symbols used for tool.
V .......................volts
.../min................revolutions or reciprocation per
minute
...................direct current
................number of blow
...................no load speed
n
˚
IMPORTANT SAFETY INSTRUCTIONS FOR
BATTERY CARTRIDGE
ENC004-1
1. Before using battery cartridge, read all instruc-
tions and cautionary markings on (1) battery
charger, (2) battery, and (3) product using bat-
tery.
(1) Do not touch the terminals with any con-
ductive material.
(2) Avoid storing battery cartridge in a con-
tainer with other metal objects such as
nails, coins, etc.
2. Do not disassemble battery cartridge.
3. If operating time has become excessively
shorter, stop operating immediately. It may
result in a risk of overheating, possible burns
and even an explosion.
4. If electrolyte gets into your eyes, rinse them out
with clear water and seek medical attention right
away. It may result in loss of your eyesight.
5. Always cover the battery terminals with the bat-
tery cover when the battery cartridge is not
used.
(3) Do not expose battery cartridge to water or
rain.
A battery short can cause a large current flow,
overheating, possible burns and even a break-
down.
7. Do not store the tool and battery cartridge in
locations where the temperature may reach or
exceed 50°C (122°F).
8. Do not incinerate the battery cartridge even if it
is severely damaged or is completely worn out.
The battery cartridge can explode in a fire.
9. Be careful not to drop or strike battery.
6. Do not short the battery cartridge:
SAVE THESE INSTRUCTIONS
Tips for maintaining maximum battery life
1. Charge the battery cartridge before completely
discharged.
4. Charge the Nickel Metal Hydride battery car-
tridge when you do not use it for more than six
months.
Always stop tool operation and charge the bat-
tery cartridge when you notice less tool power.
2. Never recharge a fully charged battery cartridge.
Overcharging shortens the battery service life.
3. Charge the battery cartridge with room tempera-
ture at 10°C - 40°C (50°F - 104°F). Let a hot bat-
tery cartridge cool down before charging it.
5
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FUNCTIONAL
DESCRIPTION
CAUTION:
•
Always be sure that the tool is switched off and the
battery cartridge is removed before adjusting or
checking function on the tool.
002810
Installing or removing battery cartridge
1
•
•
•
Always switch off the tool before insertion or removal of
the battery cartridge.
To remove the battery cartridge, withdraw it from the tool
while pressing the buttons on both sides of the cartridge.
2
To insert the battery cartridge, align the tongue on the
battery cartridge with the groove in the housing and slip
it into place. Always insert it all the way until it locks in
place with a little click. If not, it may accidentally fall out
of the tool, causing injury to you or someone around you.
1. Button
2. Battery cartridge
•
Do not use force when inserting the battery cartridge. If
the cartridge does not slide in easily, it is not being
inserted correctly.
002814
Switch action
CAUTION:
1
•
Before inserting the battery cartridge into the tool,
always check to see that the switch trigger actuates
properly and returns to the “OFF” position when
released.
To start the tool, simply pull the switch trigger. Tool speed is
increased by increasing pressure on the switch trigger.
Release the switch trigger to stop.
1. Switch trigger
Electric brake
This tool is equipped with an electric brake. If the tool consis-
tently fails to quickly stop after switch trigger release, have
tool serviced at a Makita service center.
6
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001257
Reversing switch action
This tool has a reversing switch to change the direction of
rotation. Depress the reversing switch lever from the A side
for clockwise rotation or from the B side for counterclockwise
rotation.
1
A
B
When the reversing switch lever is in the neutral position, the
switch trigger cannot be pulled.
1. Reversing switch lever
CAUTION:
•
•
Always check the direction of rotation before operation.
Use the reversing switch only after the tool comes to a
complete stop. Changing the direction of rotation before
the tool stops may damage the tool.
•
•
When not operating the tool, always set the reversing
switch lever to the neutral position.
ASSEMBLY
CAUTION:
Always be sure that the tool is switched off and the
battery cartridge is removed before carrying out any
work on the tool.
001266
Installing or removing driver bit or socket bit
Use only the driver bit or socket bit shown in the figure. Do
not use any other driver bit or socket bit.
12 mm
(15/32”)
9 mm
(3/8”)
001267
To install the bit, pull the sleeve in the direction of the arrow
and insert the bit into the sleeve as far as it will go. Then
release the sleeve to secure the bit.
To remove the bit, pull the sleeve in the direction of the arrow
and pull the bit out firmly.
1
2
NOTE:
•
If the bit is not inserted deep enough into the sleeve, the
sleeve will not return to its original position and the bit
will not be secured. In this case, try re-inserting the bit
according to the instructions above.
1. Bit
2. Sleeve
7
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The proper fastening torque may differ depending upon the
kind or size of the screw/bolt, the material of the workpiece to
be fastened, etc. The relation between fastening torque and
fastening time is shown in the figures.
OPERATION
002833
Hold the tool firmly and place the point of the driver bit in the
screw head. Apply forward pressure to the tool to the extent
that the bit will not slip off the screw and turn the tool on to
start operation.
Machine screw
N.m
(ft.lbs)
NOTE:
20
M8(5/16”)
(15)
•
Use the proper bit for the head of the screw/bolt that you
wish to use.
15
(11)
M6(1/4”)
M8
10
(7)
•
When fastening screw M8 or smaller, carefully adjust
pressure on the switch trigger so that the screw is not
damaged.
5
M6
(4)
0
0.5
1.0
1.5 (S)
•
•
Hold the tool pointed straight at the screw.
Fastening time
If you tighten the screw for a time longer than shown in
the figures, the screw or the point of the driver bit may be
overstressed, stripped, damaged, etc. Before starting
your job, always perform a test operation to determine
the proper fastening time for your screw.
002834
Standard bolt
•
If the tool is operated continuously until the battery
cartridge has discharged, allow the tool to rest for
15 minutes before proceeding with a fresh battery.
N.m
(ft.lbs)
80
(57)
M12(1/2”)
60
(43)
M10(3/8”)
The fastening torque is affected by a wide variety of factors
including the following. After fastening, always check the
torque with a torque wrench.
M12
40
(29)
M8(5/16”)
M10
20
(15)
M8
1. When the battery cartridge is discharged almost com-
pletely, voltage will drop and the fastening torque will be
reduced.
1.0
2.0
3.0 (S)
Fastening time
2. Driver bit or socket bit
Failure to use the correct size driver bit or socket bit 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.
8
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4. The manner of holding the tool or the material of driving
position to be fastened will affect the torque.
5. Operating the tool at low speed will cause a reduction in
the fastening torque.
MAINTENANCE
CAUTION:
•
Always be sure that the tool is switched off and the
battery cartridge is removed 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
001268
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
After replacing brushes, insert the battery cartridge into the
tool and break in brushes by running tool with no load for
about 1 minute. Then check the tool while running and elec-
tric brake operation when releasing the switch trigger. If elec-
tric brake is not working well, ask your local Makita service
center for repair.
2
1. Brush holder cap
2. Screwdriver
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.
EN0001-1
Recycling the Battery
The only way to dispose of a Makita battery is to recycle it.
The law prohibits any other method of disposal.
To recycle the battery:
1. Remove the battery from the tool.
Ni-Cd
2. a) Take the battery to your nearest Makita Factory
Service Center
or
9
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b) Take the battery to your nearest Makita Authorized
Service Center or Distributor that has been desig-
nated as a Makita battery recycling location.
Call your nearest Makita Service Center or Distributor to
determine the location that provides Makita battery recycling.
See your local Yellow Pages under “Tools-Electric”.
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.
•
•
•
Screw bits
Various type of Makita genuine batteries and chargers
Plastic carrying case
10
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Memo
11
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Memo
12
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Stamp
Timbre
Makita Canada Inc.
1950 Forbes Street,
Whitby, Ontario
L1N 7B7
Fold
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Your answers to the following questions are appreciated.
1.This product was purchased from?
3. How did you first learn of Makita Power Tools?
Hardware/lumber Store
Tool Distributor
Industrial Supply
Other (
Magazine/Newspaper
From dealer
Catalog
Other (
)
)
Store display
2. Use of the product is intended for?
4. Most favored points are?
Construction trade
Home maintenance
Other (
Design
Makita Brand
Power
Industrial maintenance
)
Features
Size
Other (
)
Price
5. Any comments?
Certificate of Warranty
Mail to Makita
Date Purchased
Model No.
Serial No.
Month
Day
Year 20
Male Female
Single
Married
Initial Last Name
Street Address
City
Province
Postal Code
Under 19
20-29
30-39
40-49
Over 50
AGE:
Occupation:
Dealer's Name & Address:
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Paste Paste Paste Paste Paste Paste
Paste
Paste
Factory Service Centres
Head Office:
1950 Forbes St., Whitby, Ontario, L1N 7B7
(905) 571 - 2200 1-800-263-3734
Regional Office:
11771 Hammersmith Way, Richmond
B.C. V7A 5H6
(604) 272 - 3104 1-800-663-0909
Regional Office:
6389 boul. Couture, St. Leonard, Quebec
(Montreal)
H1P 3J5
(514) 323 - 1223 1-800-361-7049
(902) 468 - 7064 1-888-625-4821
Dartmouth:
202 Brownlow Avenue
Dartmouth, N.S., B3B 1T5
Ville St. Laurent:
(Montreal)
1140 Rue Bégin, Ville St. Laurent, Quebec
H4R 1X1
(514) 745 - 5025 1-888-745-5025
Les Saules:
(Quebec)
1200 St. Jean Baptiste, Unit 106, Les Saules,
Quebec, G2E 5E8
(418) 871 - 5720 1-800-663-5757
Nepean:
(Ottawa)
210 Colonnade Road, Unit 11, Nepean,
Ontario, K2E 7M1
(613) 224 - 5022 1-888-560-2214
Whitby:
1950 Forbes St., Whitby, Ontario, L1N 7B7
(905) 571 - 2200 1-800-263-3734
London:
317 Adelaide St. S., Unit 117, London,
Ontario, N5Z 3L3
(519) 686 - 3115 1-800-571-0899
Mississauga:
Calgary:
6350 Tomken Rd., Unit 8, Mississauga,
Ontario, L5T 1Y3
(905) 670 - 7255 1-888-221-9811
#8-6115 Fourth St. S.E., Calgary
Alberta, T2H 2H9
(403) 243 - 3995 1-800-267-0445
Edmonton:
Richmond:
Coquitlam:
Winnipeg:
Saskatoon:
11614-149 Street, Edmonton, Alberta,
T5M 3R3
(780) 455 - 6644 1-888-455-6644
11771 Hammersmith Way, Richmond, B.C.,
V7A 5H6
(604) 272 - 3104 1-800-663-0909
2131 Hartley Ave., #103
Coquitlam, B.C. V3K 2Z3
(604) 525 - 7434 1-800-266-7738
1670 St. James Street, Winnipeg, Manitoba,
R3H 0L3
(204) 694 - 0402 1-800-550-5073
206A-2750 Faithful Avenue Saskatoon,
Saskatchewan, S7K 6M6
(306) 931 - 0111 1-888-931-0111
For the authorized service centre nearest you please refer to the local yellow pages directory under “tools” or con-
tact our customer service department (Tel) 1-800-263-3734
CUSTOMER RECORD
When you need service...
DATE
• Explain the problem in a letter
PURCHASED:
• Enclose the letter with the tool
DEALER’S NAME
• Package carefully and send prepaid
& ADDRESS:
to the nearest Makita factory or
authorized service centre
MODEL NO.:
SERIAL NO.:
15
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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 Centres.
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 normal maintenance is required,
• repairs have been made or attempted by others,
• 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.
“The Makita Warranty is the only and the entire written warranty given by Makita for the Makita tools. No dealer or his agent
or employee is authorized to extend or enlarge upon this warranty by any verbal or written statement or advertisement.”
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 rights. The provisions contained in this warranty are not intended to limit, modify, take away
from, disclaim or exclude any warranties set forth in any provincial legislation. To the extent required by law, the provisions in
any provincial or federal legislation with respect to warranties take precedence over the provisions in this warranty.”
Makita Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi 446-8502 Japan
884107B236
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