Makita TW0350 User manual

1
ENGLISH (Original instructions)
INSTRUCTION MANUAL
DOUBLE INSULATION
IMPORTANT: Read Before Using.
Impact Wrench
TW0350
004005

2
ENGLISH (Original instructions)
SPECIFICATIONS
Model TW0350
Standard bolt M12 - M22
Capacities High tensile bolt M12 - M16
Square drive 12.7 mm
No load speed (min-1) 2,000
Impacts per minute 2,000
Max. fastening torque 350 N·m
Overall length 283 mm
Net weight 3.0 kg
Safety class /II
• Due to our continuing program of research and development, the specifications herein are subject to change without notice.
• Specifications may differ from country to country.
• Weight according to EPTA-Procedure 01/2003
END201-5
Symbols
The following show the symbols used for the equipment.
Be sure that you understand their meaning before use.
･Read instruction manual.
･DOUBLE INSULATION
･Only for EU countries
Do not dispose of electric equipment
together with household waste material!
In observance of European Directive
2002/96/EC on waste electric and
electronic equipment and its
implementation in accordance with
national law, electric equipment that
have reached the end of their life must
be collected separately and returned to
an environmentally compatible recycling
facility.
ENE036-1
Intended use
The tool is intended for fastening bolts and nuts.
ENF002-2
Power supply
The tool should be connected only to a power supply of
the same voltage as indicated on the nameplate, and can
only be operated on single-phase AC supply. They are
double-insulated and can, therefore, also be used from
sockets without earth wire.
ENG905-1
Noise
The typical A-weighted noise level determined according
to EN60745:
Sound pressure level (LpA) : 93 dB (A)
Sound power level (LWA) : 104 dB (A)
Uncertainty (K) : 3 dB (A)
Wear ear protection
ENG900-1
Vibration
The vibration total value (tri-axial vector sum) determined
according to EN60745:
Work mode : impact tightening of fasteners of the
maximum capacity of the tool
Vibration emission (ah) : 11.5 m/s2
Uncertainty (K) : 1.5 m/s2
ENG901-1
• The declared vibration emission value has been
measured in accordance with the standard test method
and may be used for comparing one tool with another.
• The declared vibration emission value may also be
used in a preliminary assessment of exposure.
WARNING:
• The vibration emission during actual use of the power
tool can differ from the declared emission value
depending on the ways in which the tool is used.
• Be sure to identify safety measures to protect the
operator that are based on an estimation of
exposure in the actual conditions of use (taking
account of all parts of the operating cycle such as
the times when the tool is switched off and when it
is running idle in addition to the trigger time).

3
ENH101-17
For European countries only
EC Declaration of Conformity
Makita declares that the following Machine(s):
Designation of Machine:
Impact Wrench
Model No./ Type: TW0350
Conforms to the following European Directives:
2006/42/EC
They are manufactured in accordance with the following
standard or standardized documents:
EN60745
The technical file in accordance with 2006/42/EC is
available from:
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
31.12.2013
000331
Yasushi Fukaya
Director
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
GEA005-3
General Power Tool Safety
Warnings
WARNING Read all safety warnings and all
instructions.
Failure to follow the warnings and instructions
may result in electric shock, fire and/or serious injury.
Save all warnings and
instructions for future reference.
The term "power tool" in the warnings refers to your
mains-operated (corded) power tool or battery-operated
(cordless) power tool.
Work area safety
1. Keep work area clean and well lit. Cluttered or
dark areas invite accidents.
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 children and bystanders away while
operating a power tool. Distractions can cause
you to lose control.
Electrical safety
4. Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power
tools. Unmodified plugs and matching outlets will
reduce risk of electric shock.
5. Avoid body contact with earthed or grounded
surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of
electric shock if your body is earthed or grounded.
6. Do not expose power tools to rain or wet
conditions. Water entering a power tool will
increase the risk of electric shock.
7. Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges or
moving parts. Damaged or entangled cords
increase the risk of electric shock.
8. When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use of
a cord suitable for outdoor use reduces the risk of
electric shock.
9. If operating a power tool in a damp location is
unavoidable, use a residual current device
(RCD) protected supply. Use of an RCD reduces
the risk of electric shock.
10.
Use of power supply via a RCD with a rated residual
current of 30mA or less is always recommended.
Personal safety
11.
Stay alert, watch what you are doing and use
common sense when operating a power tool. Do
not use a power tool while you are tired or under
the influence of drugs, alcohol or medication.
A
moment of inattention while operating power tools
may result in serious personal injury.
12. Use personal protective equipment. Always
wear eye protection. Protective equipment such
as dust mask, non-skid safety shoes, hard hat, or
hearing protection used for appropriate conditions
will reduce personal injuries.
13. Prevent unintentional starting. Ensure the
switch is in the off-position before connecting
to power source and/or battery pack, picking
up or carrying the tool. Carrying power tools with
your finger on the switch or energising power tools
that have the switch on invites accidents.
14. Remove any adjusting key or wrench before
turning the power tool on. A wrench or a key left
attached to a rotating part of the power tool may
result in personal injury.
15. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
16.
Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing, and gloves
away from moving parts.
Loose clothes, jewellery
or long hair can be caught in moving parts.
17. If devices are provided for the connection of dust
extraction and collection facilities, ensure these
are connected and properly used.
Use of dust
collection can reduce dust-related hazards.

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Power tool use and care
18. Do not force the power tool. Use the correct
power tool for your application. The correct
power tool will do the job better and safer at the
rate for which it was designed.
19. Do not use the power tool if the switch does
not turn it on and off. Any power tool that cannot
be controlled with the switch is dangerous and
must be repaired.
20. Disconnect the plug from the power source
and/or the battery pack from the power tool
before making any adjustments, changing
accessories, or storing power tools. Such
preventive safety measures reduce the risk of
starting the power tool accidentally.
21. Store idle power tools out of the reach of
children and do not allow persons unfamiliar
with the power tool or these instructions to
operate the power tool. Power tools are
dangerous in the hands of untrained users.
22. Maintain power tools. Check for misalignment
or binding of moving parts, breakage of parts
and any other condition that may affect the
power tool’s operation. If damaged, have the
power tool repaired before use. Many accidents
are caused by poorly maintained power tools.
23. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
24. Use the power tool, accessories and tool bits
etc. in accordance with these instructions,
taking into account the working conditions
and the work to be performed. Use of the power
tool for operations different from those intended
could result in a hazardous situation.
Service
25. Have your power tool serviced by a qualified
repair person using only identical replacement
parts. This will ensure that the safety of the power
tool is maintained.
26. Follow instruction for lubricating and
changing accessories.
27. Keep handles dry, clean and free from oil and
grease.
GEB009-6
IMPACT WRENCH SAFETY
WARNINGS
1. Hold power tool by insulated gripping
surfaces, when performing an operation where
the fastener may contact hidden wiring or its
own cord. Fasteners contacting a "live" wire may
make exposed metal parts of the power tool "live"
and could give the operator an electric shock.
2. Wear ear protectors.
3. Check the socket carefully for wear, cracks or
damage before installation.
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.
SAVE THESE INSTRUCTIONS.
WARNING:
DO NOT let comfort or familiarity with product
(gained from repeated use) replace strict adherence
to safety rules for the subject product. MISUSE or
failure to follow the safety rules stated in this
instruction manual may cause serious personal
injury.

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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.
Switch action
1
004006
CAUTION:
• Before plugging in the tool, always check to see
that the switch trigger actuates properly and returns
to the "OFF" 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.
The switch is reversible, providing either clockwise or
counterclockwise 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.
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
CAUTION:
• Always be sure that the tool is switched off and
unplugged before installing or removing the socket.
1
2
004007
For socket without O-ring and pin
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.
For socket with O-ring and pin
1
2
3
004008
Move the O-ring out of the groove in the socket and
remove the pin from the socket. Fit the socket onto the
anvil of the tool so that the hole in the socket is aligned
with the hole in the anvil. Insert the pin through the hole
in the socket and anvil. Then return the O-ring to the
original position in the socket groove to retain the pin. To
remove the socket, follow the installation procedures in
reverse.
OPERATION
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 fastening time is shown in the figures.
0
0.5 1 1.5 22.5
50
100
150
200
250
300
Standard bolt
Fastening torque (N m)
Fastening time (S)
.
M12X80
(3/4"X3-1/8")
(5/8"X3-1/8")
(1/2"X3-1/8")
3
M16X80
M20X80
004009
1. Socket
2. O-ring
3. Pin
1. Socket
2. Anvil
1. Switch trigger

6
012345
50
100
150
200
250
300
M16
M16(F10T)
High tensile bolt
Fastening torque (N m)
Fastening time (S)
(5/8") (5/8")
(1/2"X3-1/8")
(1/2")
.
M12X80
M12
6
004010
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:
• When fastening screw M12 or smaller, carefully
adjust pressure on the switch so that the screw is
not damaged.
• Hold the tool pointed straight at the bolt or nut
without applying excessive pressure on the tool.
• If you fasten the bolt for a time longer than shown in the
figures, the bolt or the socket may be overstressed,
damaged, etc. Before starting your job, always perform
a test operation to determine the proper fastening time
for your bolt. Especially for the bolt over than M12,
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. 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
somewhat 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.
• Never use gasoline, benzine, thinner, alcohol or the
like. Discoloration, deformation or cracks may
result.
Replacing carbon brushes
1
001145
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 identical 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.
1
2
004011
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be
performed by Makita Authorized Service Centers, always
using Makita replacement parts.
1. Brush holder
cap
2. Screwdriver
1. Limit mark

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OPTIONAL 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.
• Sockets
• Extension bar
• Universal joint
NOTE:
• Some items in the list may be included in the tool
package as standard accessories. They may differ
from country to country.

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www.makita.com
Makita Jan-Baptist Vinkstraat 2, 3070, Belgium
Makita Corporation Anjo, Aichi, Japan
884486D220