INSTRUCTION MANUAL

Cordless Impact Wrench

DTW280

DTW281

IMPORTANT: Read Before Using.

1

014635

ENGLISH (Original instructions)

SPECIFICATIONS

Capacities

Impacts per minute (min

-1

)

Model

Standard bolt

High tensile bolt

No load speed (min

-1

)

Square drive

Impact mode (Hard)

Impact mode (Medium)

Impact mode (Soft)

Impact mode (Hard)

Impact mode (Medium)

Overall length

Impact mode (Soft)

DTW280

M10 - M20

M10 - M16

12.7 mm

0 - 2,800

0 - 2,100

0 - 1,600

0 - 3,500

0 - 2,600

0 - 1,800

147 mm

DTW281

M10 - M20

M10 - M16

12.7 mm

0 - 2,800

0 - 2,100

0 - 1,600

0 - 3,500

0 - 2,600

0 - 1,800

147 mm

Net weight 1.5 kg 1.7 kg

Rated voltage D.C. 14.4 V D.C. 18 V

• Due to our continuing program of research and development, the specifications herein are subject to change without notice.

• Specifications and battery cartridge may differ from country to country.

• Weight, with battery cartridge, according to EPTA-Procedure 01/2003

END004-6

Symbols

The following show the symbols used for the equipment.

Be sure that you understand their meaning before use.

Read instruction manual.

Cd

Ni-MH

Li-ion

Only for EU countries

Do not dispose of electric equipment or battery pack together with household waste material!

In observance of the European

Directives, on Waste Electric and

Electronic Equipment and Batteries and

Accumulators and Waste Batteries and

Accumulators and their implementation in accordance with national laws, electric equipment and batteries and battery pack(s) 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.

ENG905-1

Noise

The typical A-weighted noise level determined according to EN60745:

Sound pressure level (L pA

Sound power level (L

WA

) : 96 dB (A)

) : 107 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:

Model DTW280

Work mode : impact tightening of fasteners of the maximum capacity of the tool

Vibration emission (a h

) : 14.0 m/s

2

Uncertainty (K) : 1.5 m/s

2

Model DTW281

•

•

Work mode : impact tightening of fasteners of the maximum capacity of the tool

Vibration emission (a h

) : 11.5 m/s

2

Uncertainty (K) : 1.5 m/s

2

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

2

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).

ENH101-18

For European countries only

EC Declaration of Conformity

Makita declares that the following Machine(s):

Designation of Machine:

Cordless Impact Wrench

Model No./ Type: DTW280,DTW281

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

30.7.2013

000331

Yasushi Fukaya

Director

Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium

GEA006-2

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.

3

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 ground fault circuit

interrupter (GFCI) protected supply. Use of an

GFCI reduces the risk of electric shock.

Personal safety

10. 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.

11. 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.

12. 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.

13. 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.

14. Do not overreach. Keep proper footing and

balance at all times. This enables better control of the power tool in unexpected situations.

15. 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.

16. 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 dustrelated hazards.

Power tool use and care

17. 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.

18. 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.

19. 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.

20. 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.

21. 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.

22. Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.

23. 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.

Battery tool use and care

24. Recharge only with the charger specified by

the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.

25. Use power tools only with specifically

designated battery packs. Use of any other battery packs may create a risk of injury and fire.

26. 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 connection from one

terminal to another. Shorting the battery terminals together may cause burns or a fire.

4

27. Under abusive conditions, liquid may be

ejected from the battery; avoid contact. If contact accidentally occurs, flush with water.

If liquid contacts eyes, additionally seek

medical help. Liquid ejected from the battery may cause irritation or burns.

Service

28. 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.

29. Follow instruction for lubricating and

changing accessories.

30. Keep handles dry, clean and free from oil and

grease.

GEB049-2

CORDLESS IMPACT WRENCH

SAFETY WARNINGS

1.

Hold power tool by insulated gripping surfaces, when performing an operation

where the fastener may contact hidden wiring.

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.

ENC007-8

IMPORTANT SAFETY

INSTRUCTIONS

FOR BATTERY CARTRIDGE

1.

Before using battery cartridge, read all instructions and cautionary markings on (1) battery charger, (2) battery, and (3) product using battery.

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

conductive material.

(2) Avoid storing battery cartridge in a

container 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 breakdown.

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.

9.

Do not use a damaged battery.

10. Follow your local regulations relating to

disposal of 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 battery 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 temperature at 10 C - 40 C (50 F - 104 F).

Let a hot battery cartridge cool down before charging it.

4.

Charge the battery cartridge once in every six months if you do not use it for a long period of time.

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

1

1. Red indicator

2. Button

3. Battery cartridge

2

3

014636

•

•

CAUTION:

Always switch off the tool before installing or removing of the battery cartridge.

Hold the tool and the battery cartridge firmly

when installing or removing battery cartridge.

Failure to hold the tool and the battery cartridge firmly may cause them to slip off your hands and result in damage to the tool and battery cartridge and a personal injury.

To remove the battery cartridge, slide it from the tool while sliding the button on the front of the cartridge.

To install the battery cartridge, align the tongue on the battery cartridge with the groove in the housing and slip it into place. Insert it all the way until it locks in place with a little click. If you can see the red indicator on the upper side of the button, it is not locked completely.

•

•

CAUTION:

Always install the battery cartridge fully until the red indicator cannot be seen. If not, it may accidentally fall out of the tool, causing injury to you or someone around you.

Do not install the battery cartridge forcibly. If the cartridge does not slide in easily, it is not being inserted correctly.

5

Battery protection system

(Lithium-ion battery with star marking)

1

1. Star marking

LED indicator status Remaining battery capacity

About 50% or more

About 20% - 50%

012128

Lithium-ion batteries with a star marking are equipped with a protection system. This system automatically cuts off power to the tool to extend battery life.

The tool will automatically stop during operation if the tool and/or battery are placed under one of the following conditions:

•

Overloaded:

The tool is operated in a manner that causes it to draw an abnormally high current.

In this situation, release the trigger switch on

• the tool and stop the application that caused the tool to become overloaded. Then pull the trigger switch again to restart.

If the tool does not start, the battery is overheated. In this situation, let the battery cool before pulling the trigger switch again.

Low battery voltage:

The remaining battery capacity is too low and the tool will not operate. In this situation, remove and recharge the battery.

Indicating the remaining battery capacity

1. LED display

About less than 20%

012273

NOTE:

•

•

•

•

When the LED display goes off, the tool is turned off to save the battery power. To check the remaining battery capacity, slightly pull the switch trigger.

The LED display goes off approximately one minute after releasing the switch trigger.

When the tool is overheated, the light flashes for one minute, and then the LED display goes off. In this case, cool down the tool before operating again.

When the LED display lights up and the tool stops even with a recharged battery cartridge, cool down the tool fully. If the status will not change, stop using and have the tool repaired by a Makita local service center.

Switch action

1. Switch trigger

1

014830

When you pull the switch trigger, the LED display shows the remaining battery capacity.

The remaining battery capacity is shown as the following table.

1

014639

CAUTION:

•

Before installing 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.

6

Lighting up the front lamp

•

CAUTION:

Do not look in the light or see the source of light directly.

•

When not operating the tool, always set the reversing switch lever to the neutral position.

1. Reversing switch lever

1. Lamp

1

014640

1 s

S H

1

1. Button

014642

To turn on the lamp status, press the button for one second. To turn off the lamp status, press the button for one second again.

With the lamp status ON, pull the switch trigger to turn on the lamp. To turn off, release it. The lamp goes out approximately 10 seconds after releasing the switch trigger.

With the lamp status OFF, the lamp does not turn on even if pulling the trigger.

NOTE:

•

To confirm the lamp status, pull the trigger. When

• the lamp lights up by pulling the switch trigger, the lamp status is ON. When the lamp does not come on, the lamp status is OFF.

Use a dry cloth to wipe the dirt off the lens of lamp.

•

•

Be careful not to scratch the lens of lamp, or it may lower the illumination.

While pulling the switch trigger, the lamp status cannot be changed.

For approximately 10 seconds after releasing the switch trigger, the lamp status can be changed.

Reversing switch action

•

•

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.

7

A

B

1

014641

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.

Changing the impact force

1

2

5

3

4

1. Changed in three steps

2. Hard

3. Medium

4. Soft

5. Button

014644

Impact force grade displayed on panel

Hard

Maximum blows

3,500

(min

-1

)

Application

Tightening when force and speed are desired.

Medium

2,600

(min

-1

)

Work

Assembling the steel frame.

Tightening when you need good controlled power.

Assembling or disassembling scaffolds or framework.

Soft

1,800

(min

-1

)

014829

You can change the impact in three steps: hard, medium and soft mode.

This allows a tightening suitable to the work.

Every time the button is pressed, the number of blows changes in three steps.

For approximately one minute after releasing the switch trigger, the impact force can be changed.

Tightening when you need fine adjustment with small diameter bolt.

Assembling the furniture.

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.

8

Installing or removing socket

For socket without O-ring and pin

1. Socket

2. Square drive

1

OPERATION

•

CAUTION:

Always insert the battery cartridge all the way until it locks in place. If you can see the red part on the upper side of the button, it is not locked completely.

Insert it fully until the red part cannot be seen. If not, it may accidentally fall out of the tool, causing injury to you or someone around you.

1

2

3

2

014643

Align the hole in the side of the socket with the detent pin on the square drive and push the socket onto the square drive until it locks into place. Tap it lightly if required.

To remove the socket, simply pull it off.

For socket with O-ring and pin

1. Socket

2. O-ring

3. Pin

014637

Move the O-ring out of the groove in the socket and remove the pin from the socket. Fit the socket onto the square drive so that the hole in the socket is aligned with the hole in the square drive. Insert the pin through the hole in the socket and square drive. 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.

Hook

3

1. Hook

2. Screw

3. Groove

2

014822

Hold the tool firmly and place the socket over the bolt or nut. Turn the tool on and fasten for the proper fastening time.

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.

Model DTW280

Standard bolt

N m

280

240

200

160

120

80

40

0

M20

M20

M16

M16

M12

M12

0.5

1.0

1.5

Fastening time (S)

2.0

1

014638

The hook is convenient for temporarily hanging the tool.

This can be installed on either side of the tool.

To install the hook, insert it into a groove in the tool housing on either side and then secure it with a screw.

To remove, loosen the screw and then take it out.

014823

9

High tensile bolt

N m

280

240

200

160

120

80

40

0

M12H

M14H

1.0

2.0

Fastening time (S)

M16H

M16H

M14H

M12H

3.0

014824

Model DTW281

Standard bolt

N m

280

240

200

160

120

80

40

0

M20

M20

M16 M16

M12

M12

0.5

1.0

1.5

Fastening time (S)

2.0

014825

High tensile bolt

N m

280

240

200

160

120

80

40

0

M12H

M14H

1.0

2.0

Fastening time (S)

M16H

M16H

M14H

M12H

3.0

014826

10

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.

•

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 cartridge.

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 completely, 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 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.

6. 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.

Never use gasoline, benzine, thinner, alcohol or the like. Discoloration, deformation or cracks may result.

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.

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

Bit adapter

Makita genuine battery and charger

NOTE:

•

Some items in the list may be included in the tool package as standard accessories. They may differ from country to country.

11

885306A221

Makita

Jan-Baptist Vinkstraat 2, 3070, Belgium

Makita Corporation

Anjo, Aichi, Japan