DTW281RTJ - Drill driver MAKITA - Free user manual and instructions

Brand	Makita
Model	DTW281RTJ
Product type	Cordless Impact Wrench
Rated voltage	18 V DC
Battery type	Lithium-ion (with protection circuit)
No-load speed (hard mode)	0 - 2 800 min⁻¹
No-load speed (medium mode)	0 - 2 100 min⁻¹
No-load speed (soft mode)	0 - 1 600 min⁻¹
Impacts per minute (hard mode)	0 - 3 500 min⁻¹
Impacts per minute (medium mode)	0 - 2 600 min⁻¹
Impacts per minute (soft mode)	0 - 1 800 min⁻¹
Standard bolt capacity	M10 - M20
High-tensile bolt capacity	M10 - M16
Drive square	12.7 mm (1/2 inch)
Overall length	147 mm
Net weight (with battery, EPTA procedure)	1.7 kg
Sound pressure level (LpA)	96 dB(A)
Sound power level (LWA)	107 dB(A)
Vibration emission (impact tightening)	11.5 m/s² (uncertainty K=1.5 m/s²)
Main functions	Tightening and loosening bolts/nuts, 3 impact force levels (hard, medium, soft), front LED light, forward/reverse trigger, variable speed trigger, suspension hook
Maintenance and cleaning	Turn off the tool and remove the battery before any maintenance. Clean with a dry cloth; do not use gasoline, thinner, or alcohol. Have repairs carried out by an authorized Makita service center.
Safety instructions	Wear hearing protection; hold the tool by insulated surfaces when working near hidden wiring; check socket for wear; always maintain proper footing; use a torque wrench to verify torque.
Spare parts and repairability	Use only genuine Makita replacement parts. Repairs must be carried out by an authorized Makita after-sales service center.
General information	Conforms to EU Directives 2006/42/EC and standard EN60745. Manufacturer: Makita Corporation, Japan. Technical documentation kept by Makita International Europe Ltd.

Frequently Asked Questions - DTW281RTJ MAKITA

How to install the battery on the Makita DTW281RTJ impact wrench?

Align the battery tab with the housing groove, then slide it until you hear a click. Make sure the red indicator on the button disappears, indicating proper locking.

How to change the impact force on the DTW281RTJ?

Press the force change button (reference 2 in the manual) to switch between three levels: hard (3,500 impacts/min), medium (2,600 impacts/min), and soft (1,800 impacts/min). Adjustment is possible about one minute after releasing the trigger.

What to do if the tool stops suddenly during use?

This may be due to overload or low battery voltage. Release the trigger and let the tool cool down. If the battery is discharged, remove and recharge it. If the problem persists, contact a Makita service center.

What maximum tightening torque can the DTW281RTJ achieve?

The manual does not specify a maximum torque value, but recommends checking the torque with a torque wrench after tightening. The torque depends on the bolt type, tightening duration, and battery condition.

How to turn on the front light on the impact wrench?

Press the lamp button (reference 2) for one second to activate it. Then, each trigger pull will turn on the lamp; it turns off automatically 10 seconds after releasing the trigger.

What is the charging time of the Makita 18V battery?

The manual does not specify the exact time. Use a compatible Makita charger; charging time depends on the charger model and battery condition. Generally, an 18V Li-ion battery charges in 30 to 60 minutes with a fast charger.

Can I use non-Makita sockets with this tool?

Yes, provided they have a 12.7 mm (1/2 inch) drive square and are suitable for bolts. However, for precise torque and to avoid damaging the tool, use sockets in good condition and of correct dimensions.

How to maintain the DTW281RTJ impact wrench?

Before any maintenance, turn off the tool and remove the battery. Clean the housing and lamp with a dry cloth. Never use solvents. Have the tool serviced at an authorized Makita center for repairs.

What are the recommended accessories for this tool?

Makita recommends using sockets, extension bars, universal joints, bit adapters, as well as genuine Makita batteries and chargers. Some accessories may be included depending on the country.

Why does the screwdriver stop even though the battery is charged?

This may indicate overheating of the tool. The LED display then flashes for one minute before turning off. Let the tool cool down completely. If the problem persists, stop using the tool and have it repaired by a Makita center.

USER MANUAL DTW281RTJ MAKITA

GB Cordless Impact Wrench Instruction Manual

Line drawing of a handheld electric drill putter with no text or symbols

1

2

3

4

5

6

7
014641

graph TD
    A["Stage 9: 1s D"] --> B["Stage 10: S/H"]
    B --> C["Stage 11: 1s D"]
    C --> D["Stage 12: S/H"]
    D --> E["Output: 1s D"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#ffc,stroke:#333

014644

8

9

10
014637014643

11 12

Line drawing of a hand using a handheld electric drill press (no text or symbols)

014638
014822

13 14

014823
014824

15 16

014825
014826

ENGLISH (Original instructions)

	Explanation of general view
1 Red indicator	10 Hard	19 Groove
2 Button	11 Medium	20 Standard bolt
3 Battery cartridge	12 Soft	21 Fastening torque
4 Star marking	13 Socket	22 Fastening time
5 LED display	14 Square drive	23 Proper fastening torque
6 Switch trigger	15 O-ring	24 High tensile bolt
7 Lamp	16 Pin
8 Reversing switch lever	17 Hook
9 Changed in three steps	18 Screw

SPECIFICATIONS

Model DTW280 DTW281
Capacities	Standard bolt	M10 – M20	M10 – M20
	High tensile bolt	M10 – M16	M10 – M16
Square drive 12.7 mm 12.7 mm
No load speed (min ^-1 )	Impact mode (Hard)	0 – 2,800	0 – 2,800
	Impact mode (Medium)	0 – 2,100	0 – 2,100
	Impact mode (Soft)	0 – 1,600	0 – 1,600
Impacts per minute (min ^-1 )	Impact mode (Hard)	0 – 3,500	0 – 3,500
	Impact mode (Medium)	0 – 2,600	0 – 2,600
	Impact mode (Soft)	0 – 1,800	0 – 1,800
Overall length		147 mm	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

ENE036-1

Intended use

The tool is intended for fastening bolts and nuts.

GEA010-1

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.

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.

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.

1. Do not store the tool and battery cartridge in locations where the temperature may reach or exceed 50°C (122°F).
2. 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.
3. Be careful not to drop or strike battery.
4. Do not use a damaged battery.
5. 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 (Fig. 1)

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.

Battery protection system (Lithium-ion battery with star marking) (Fig. 2)

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 (Fig. 3)

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

The remaining battery capacity is shown as the following table.

LED indicator status Remaining battery capacity
	About 50% or more
	About 20% – 50%
	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 (Fig. 4)

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.

Lighting up the front lamp (Fig. 5 & 6)

CAUTION:

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

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 (Fig. 7)

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.

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 (Fig. 8)

Impact force grade displayed on panel	Maximum blows Application Work
Hard	3,500 (min-1)	Tightening when force and speed are desired.	Assembling the steel frame.
Medium	2,600 (min-1)	Tightening when you need good controlled power.	Assembling or disassembling scaffolds or framework.
Soft	1,800 (min-1)	Tightening when you need fine adjustment with small diameter bolt.	Assembling the furniture.

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.

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 (Fig. 9 & 10)

For socket without O-ring and pin

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

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 (Fig. 11)

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.

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.

Hold the tool firmly and place the socket over the bolt or nut. Turn the tool on and fasten for the proper fastening time. (Fig. 12)

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 (Fig. 13 & 14)

Model DTW281 (Fig. 15 & 16)

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

3. Failure to use the correct size socket will cause a reduction in the fastening torque.

4. A worn socket (wear on the hex end or square end) will cause a reduction in the fastening torque.

5. Bolt

6. 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.

7. 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. 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.

9. The manner of holding the tool or the material of driving position to be fastened will affect the torque.

10. 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.

Noise

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

Sound pressure level ( L_pA ): 96 dB (A)

Sound power level ( L_WA ): 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 ^4

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 ^4

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).

For European countries only

EC Declaration of Conformity

We Makita Corporation as the responsible manufacturer declare that the following Makita machine(s):

Designation of Machine:

Cordless Impact Wrench

Model No./ Type: DTW280, DTW281

are of series production and

Conforms to the following European Directives:

2006/42/EC

And are manufactured in accordance with the following

standards or standardised documents:

EN60745

The technical documentation is kept by:

Makita International Europe Ltd.

Technical Department,

Michigan Drive, Tongwell,

Milton Keynes, Bucks MK15 8JD, England

12.8.2013

Tomoyasu Kato

Director

Makita Corporation

3-11-8, Sumiyoshi-cho,

Anjo, Aichi, 446-8502, JAPAN

Descriptif

Michigan Drive, Tongwell,

Milton Keynes, Bucks MK15 8JD, Angleterre

12.8.2013

Tomoyasu Kato

Directeur

Makita Corporation

3-11-8, Sumiyoshi-cho,

Anjo, Aichi, 446-8502, JAPAN

Übersicht

Vibrationsemission ( a_h ): 14,0 m/s ^2

Michigan Drive, Tongwell,

Milton Keynes, Bucks MK15 8JD, England

12.8.2013

Tomoyasu Kato

Direktor

Makita Corporation

3-11-8, Sumiyoshi-cho,

Anjo, Aichi, 446-8502, JAPAN

Michigan Drive, Tongwell,

Milton Keynes, Bucks MK15 8JD, England

12.8.2013

Tomoyasu Kato

Amministratore

Makita Corporation

3-11-8, Sumiyoshi-cho,

Anjo, Aichi, 446-8502, JAPAN

OPTIONELE ACCESSOIRES

LET OP:

Michigan Drive, Tongwell,

Milton Keynes, Bucks MK15 8JD, Inglaterra

12.8.2013

Tomoyasu Kato

Director

Makita Corporation

3-11-8, Sumiyoshi-cho,

Anjo, Aichi, 446-8502, JAPAN

Explicação geral

Michigan Drive, Tongwell,

Milton Keynes, Bucks MK15 8JD, Inglaterra

12.8.2013

Tomoyasu Kato

Director

Makita Corporation

3-11-8, Sumiyoshi-cho,

Anjo, Aichi, 446-8502, JAPAN

Michigan Drive, Tongwell,

Milton Keynes, Bucks MK15 8JD, England

12.8.2013

Tomoyasu Kato

Direktør

Makita Corporation

3-11-8, Sumiyoshi-cho,

Anjo, Aichi, 446-8502, JAPAN

Michigan Drive, Tongwell,

Milton Keynes, Bucks MK15 8JD, England (Aγγλία)

12.8.2013

Tomoyasu Kato

Διευθυντής

Makita Corporation

3-11-8, Sumiyoshi-cho,

Anjo, Aichi, 446-8502, JAPAN

Michigan Drive, Tongwell,

Milton Keynes, Bucks MK15 8JD, England

12.8.2013

Tomoyasu Kato Müdür

Makita Corporation

3-11-8, Sumiyoshi-cho,

Anjo, Aichi, 446-8502, JAPAN

Makita Corporation

Anjo, Aichi, Japan