Makita BTW070Z User manual

INSTRUCTION MANUAL
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
Cordless Impact
Wrench
Equipped with Electric Brake
MODEL BTW070
001278

2
SPECIFICATIONS
• Manufacturer reserves the right to change specifications without notice.
• Specifications may differ from country to country.
GENERAL SAFETY RULES USA003-2
(FOR ALL BATTERY OPERATED TOOLS)
WARNING:
Read and understand all instructions. Failure to follow all
instructions listed below, may result in electric shock, fire and/or
serious personal injury.
SAVE THESE INSTRUCTIONS
Work Area
1. Keep your work area clean and well lit.
Cluttered benches and dark areas invite acci-
dents.
2. Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust. Power
tools create sparks which may ignite the dust
or fumes.
3. Keep bystanders, children, and visitors
away while operating a power tool. Distrac-
tions can cause you to lose control.
Model BTW070
Capacities Standard bolt M5 - M12 (3/16” - 1/2”)
High tensile bolt M5 - M10 (3/16” - 3/8”)
Square drive 9.5 mm (3/8”)
No load speed (RPM) 0 - 2,500/min.
Impacts per minute 0 - 3,000
Max. fastening torque 65 N.m (46.8 ft.lbs)
Overall length 166 mm (6-9/16”)
Net weight 1.09 kg (2.4 lbs)
Rated voltage D.C. 9.6 V
Standard battery cartridge B9017A

3
Electrical Safety
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.
5. Use battery operated tool only with specif-
ically designated battery pack. Use of any
other batteries may create a risk of fire.
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.
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.
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.
10. Do not overreach. Keep proper footing
and balance at all times. Proper footing and
balance enables better control of the tool in
unexpected situations.
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.
Tool Use and Care
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.
14. 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.
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.
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.
18. 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.
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.
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.

4
SERVICE
21. 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.
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.
SPECIFIC SAFETY RULES USB025-2
DO NOT let comfort or familiarity with product (gained from
repeated use) replace strict adherence to cordless 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.
Contact with a “live” wire will also make
exposed metal parts of the tool “live” and
shock the operator.
2. Be aware that this tool is always in an
operating condition, because it does not
have to be plugged into an electrical out-
let.
3. Wear ear protectors.
4. Check the socket carefully for wear,
cracks or damage before installation.
5. Hold the tool firmly.
6. Always be sure you have a firm footing.
7. Be sure no one is below when using the
tool in high locations.
8. The proper fastening torque may differ
depending upon the kind or size of the
bolt. Check the torque with a torque
wrench.
SAVE THESE INSTRUCTIONS
WARNING:
MISUSE or failure to follow the safety rules stated in this
instruction manual may cause serious personal injury.

5
SYMBOLS USD302-1
The followings show the symbols used for tool.
V....................... volts
.................... direct current
.................... no load speed
.../min................revolutions or reciprocation per
minute
................number of blow
IMPORTANT SAFETY INSTRUCTIONS FOR
BATTERY CARTRIDGE ENC005-1
1. Before using battery cartridge, read all instruc-
tions and cautionary markings on (1) battery
charger, (2) battery, and (3) product using bat-
tery.
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. Do not short the battery cartridge:
(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.
(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.
6. Do not store the tool and battery cartridge in
locations where the temperature may reach or
exceed 50°C (122°F).
7. 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.
8. Be careful not to drop or strike battery.
SAVE THESE INSTRUCTIONS
Tips for maintaining maximum battery life
1. Charge the battery cartridge before completely
discharged.
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.
4. Charge the Nickel Metal Hydride battery car-
tridge when you do not use it for more than six
months.

6
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.
Installing or removing battery cartridge
• To remove the battery cartridge, withdraw it from the tool
while pressing the buttons on both sides of the cartridge.
• 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.
• Do not use force when inserting the battery cartridge. If
the cartridge does not slide in easily, it is not being
inserted correctly.
Checking the remaining battery capacity
When charging
When the charging begins, the first (far left) indicating lamp
begins to flicker. Then, as charging proceeds, the other
lamps light, one after the other, to indicate the battery capac-
ity.
When using
When the tool is switched on, the lamps will light to indicate
the remaining battery capacity. When the tool is switched off,
the light goes out after approx. 5 seconds. If the battery has
not been used for a long time, or is needed refresh charging,
the orange lamp begins to flicker. Use Makita refreshing
adapter to refresh the battery.
CAUTION:
• A battery cartridge extracted from the charger that has
been unplugged with the battery cartridge inserted does
not work even if it is inserted in the tool. At this time,
recharge it for about five seconds before use.
1. Battery cartridge
2. Button
21
001251
Indicating lamp
(C) E F Capacity
80% - 100%
60% - 80%
40% - 60%
10% - 40%
0% - 10%
Indicating lamp
Capacity
80% - 100%
60% - 80%
40% - 60%
10% - 40%
0% - 10%
EF
orange
orange
001254

7
Switch action
CAUTION:
•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.
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.
When the reversing switch lever is in the neutral position, the
switch trigger cannot be pulled.
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.
The remaining Battery capacity
Auto-stop mechanism
The tool stops automatically (Red color lamp lights on) after
the battery capacity reaches under 20% to prevent the lack
of fastening torque. Charge the battery or use a new fully
charged one.
1. Switch trigger
1
001255
1. Reversing switch lever
AB
1
001257
(C) E F
EF
001258

8
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.
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.
Installing or removing socket
To install the socket, push it onto the anvil of the tool until it
locks into place.
To remove the socket, simply pull it off.
OPERATION [*1] Presetting number of impacts is impossible for more than
200 impacts (4 seconds).
[*2] Fastening time includes when you pull the trigger com-
pletely.
CAUTION:
•Hold the tool firmly and place the socket over the bolt or
nut. Turn the tool on and fasten for the proper fastening
time and number of impacts (presetting number).
•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.
1. Socket
2. Anvil
2
1
001265

9
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 figures.
NOTE:
•When fastening screw M8 (5/16”) or smaller, carefully
adjust pressure on the switch trigger so that the screw is
not damaged.
•Hold the tool pointed straight at the bolt or nut without
applying excessive pressure on the tool.
•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. Especially for the bolt smaller than M8 (5/
16”), perform the above test operation to prevent the
trouble on socket or bolt, etc.
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. When the battery cartridge is discharged almost com-
pletely, voltage will drop and the fastening torque will be
reduced.
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. Type of materials to be fastened, the manner of holding
the tool and the tool speed will affect the torque.
M8 (5/16”)
M6 (1/4”)
0.5
40
(29)
30
(21)
20
(14)
10
(7)
01.0 (S)
25
(13)
50
(25)
*1
(*2)
N·m
(ft·lbs)
(M8)
(M10)
(M6)
M10 (3/8”)
Standard
bolt
*1 Number of impacts
*2 Dial setting
001274
M8 (5/16”)
1.0
40
(29)
30
(21)
20
(14)
10
(7)
0
2.0
50
(25)
100
(50)
3.0
150
(75)
N·m (ft·lbs)
(S)
*1
(*2)
(M8)
(M6)
50
(36)
60
(43)
M10 (3/8”)
(M10)
M6 (1/4”)
High tensile
bolt
*1 Number of impacts
*2 Dial setting
001275

10
MAINTENANCE CAUTION:
•Always be sure that the tool is switched off and the
battery cartridge is removed before attempting to
perform inspection or maintenance.
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.
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.
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.
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.
•Protector(clear,red,blue)
•Automatic refreshing adapter
1. Limit mark
1
001145
1. Brush holder cap
2. Screwdriver
1
2
001268

Memo
11

Memo
12

13
Fold
Cut
Stamp
Timbre
Makita Canada Inc.
1950 Forbes Street,
Whitby, Ontario
L1N 7B7

14
Your answers to the following questions are appreciated.
Date Purchased Model No.
Serial No.
Initial Last Name
Street Address
City Province
AGE:
Male Female MarriedSingle
Month Day Year 20
Under 19 20-29 30-39 40-49 Over 50
Paste Paste Paste Paste Paste Paste Paste Paste
Paste Paste Paste Paste Paste Paste
Paste Paste Paste Paste Paste Paste
1. This product was purchased from?
Industrial Supply
Other ( )Tool Distributor
Hardware/lumber Store
2. Use of the product is intended for?
5. Any comments?
Home maintenance
Other ( )Industrial maintenance
Construction trade
3. How did you first learn of Makita Power Tools?
Catalog
Other ( )From dealer
Magazine/Newspaper
Store display
4. Most favored points are?
Makita Brand
PowerFeatures
Design
Other ( )Size
Price
Occupation:
Dealer's Name & Address:
Postal Code
Certificate of Warranty
Mail to Makita

15
Factory Service Centres
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
When you need service...
•Explain the problem in a letter
•Enclose the letter with the tool
•Package carefully and send prepaid
to the nearest Makita factory or
authorized service centre
CUSTOMER RECORD
DATE
PURCHASED:
DEALER’S NAME
& ADDRESS:
MODEL NO.:
SERIAL NO.:
Head Office: 1950 Forbes St., Whitby, Ontario, L1N 7B7
(905) 571 - 2200 1-800-263-3734
Regional Office: 11771 Hammersmith Way, Richmond
(604) 272 - 3104 1-800-663-0909B.C. V7A 5H6
Regional Office: 6389 boul. Couture, St. Leonard, Quebec
(514) 323 - 1223 1-800-361-7049H1P 3J5(Montreal)
Dartmouth: 202 Brownlow Avenue
(902) 468 - 7064 1-888-625-4821Dartmouth, N.S., B3B 1T5
Ville St. Laurent: 1140 Rue Bégin, Ville St. Laurent, Quebec
(514) 745 - 5025 1-888-745-5025H4R 1X1(Montreal)
Les Saules: 1200 St. Jean Baptiste, Unit 106, Les Saules,
(418) 871 - 5720 1-800-663-5757Quebec, G2E 5E8(Quebec)
Nepean: 210 Colonnade Road, Unit 11, Nepean,
(613) 224 - 5022 1-888-560-2214Ontario, K2E 7M1(Ottawa)
London: 317 Adelaide St. S., Unit 117, London,
(519) 686 - 3115 1-800-571-0899Ontario, N5Z 3L3
Whitby: 1950 Forbes St., Whitby, Ontario, L1N 7B7
(905) 571 - 2200 1-800-263-3734
Mississauga: 6350 Tomken Rd., Unit 8, Mississauga,
(905) 670 - 7255 1-888-221-9811Ontario, L5T 1Y3
Calgary: #8-6115 Fourth St. S.E., Calgary
(403) 243 - 3995 1-800-267-0445Alberta, T2H 2H9
Richmond: 11771 Hammersmith Way, Richmond, B.C.,
(604) 272 - 3104 1-800-663-0909V7A 5H6
Edmonton: 11614-149 Street, Edmonton, Alberta,
(780) 455 - 6644 1-888-455-6644T5M 3R3
Winnipeg: 1670 St. James Street, Winnipeg, Manitoba,
(204) 694 - 0402 1-800-550-5073R3H 0L3
Saskatoon: 206A-2750 Faithful Avenue Saskatoon,
(306) 931 - 0111 1-888-931-0111Saskatchewan, S7K 6M6

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.
“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 LIMITED ONE YEAR WARRANTY
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 Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi 446-8502 Japan
884335A233