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ENGLISH

NOTE:

 Hold the tool pointed straight at the bolt or nut.

NOTE:

 Excessive fastening torque may damage the 

bolt/nut or impact socket. Before starting your job, 

always perform a test operation to determine the 

proper fastening time for your bolt or nut.

NOTE:

 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. 

Impact socket
• 

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

• 

A worn impact 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 fasten-
ing torque will differ according to the diame-
ter 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 reduc-
tion 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.

NOTICE:

 

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 or Factory 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 regard

-

ing these accessories, ask your local Makita Service 

Center.
• 

Impact socket

• 

Extension bar

• 

Universal joint

• 

Socket bit adapter

• 

Plastic carrying case

• 

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.

Summary of Contents for DTW181Z

Page 1: ...INSTRUCTION MANUAL Cordless Impact Wrench DTW181 ENGLISH Original instructions Read before use ...

Page 2: ...aterial 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 col lected separately and returned to an envi ronmentally compatible recycling fac...

Page 3: ...e not harmful to the user However users of pacemakers and other similar medical devices should contact the maker of their device and or doctor for advice before operating this power tool Personal Safety 1 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 med ication A moment of...

Page 4: ...ns or a fire 4 Under abusive conditions liquid may be ejected from the battery avoid contact If contact acci dentally occurs flush with water If liquid contacts eyes additionally seek medical help Liquid ejected from the battery may cause irritation or burns 5 Do not use a battery pack or tool that is dam aged or modified Damaged or modified batteries may exhibit unpredictable behaviour resulting ...

Page 5: ...ortens the battery service life 3 Charge the battery cartridge with room tem perature at 10 C 40 C 50 F 104 F Let a hot battery cartridge cool down before charging it 4 Charge the battery cartridge if you do not use it for a long period more than six months FUNCTIONAL DESCRIPTION CAUTION Always be sure that the tool is switched off and the battery cartridge is removed before adjusting or checking ...

Page 6: ...aining capacity Lighted Off Blinking 75 to 100 50 to 75 25 to 50 0 to 25 Charge the battery The battery may have malfunctioned NOTE Depending on the conditions of use and the ambient temperature the indication may differ slightly from the actual capacity Switch action 1 1 Switch trigger CAUTION Before installing the battery cartridge into the tool always check to see that the switch trigger actuat...

Page 7: ...this case cool down the tool before operating again NOTE Use a dry cloth to wipe the dirt off the lens of the lamp Be careful not to scratch the lens of lamp or it may lower the illumination Reversing switch action 1 A B 1 Reversing switch lever CAUTION Always check the direction of rotation before operation CAUTION Use the reversing switch only after the tool comes to a complete stop Changing the...

Page 8: ...played on panel Maximum blows Purpose Example of application Hard 3 600 min 1 min Tightening when force and speed are desired Assembling steel frames Soft 2 000 min 1 min Tightening when you need fine adjustment with small diameter bolt Assembling furniture Reverse rotation auto stop mode 3 600 min 1 min Loosening with auto stop function Disassembling bolts nuts NOTE Reverse rotation auto stop mod...

Page 9: ...ng spring Push the impact socket onto the square drive until it locks into place To remove the impact socket simply pull it off For impact socket with O ring and pin 1 2 3 1 Impact socket 2 O ring 3 Pin Move the O ring out of the groove in the impact socket and remove the pin from the impact socket Fit the impact socket onto the square drive so that the hole in the impact socket is aligned with th...

Page 10: ... indicator 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 impact 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 f...

Page 11: ...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 reduc tion in the fastening torque MAINTENANCE CAUTION Always be sure that the tool is switched...

Page 12: ...www makita com Makita Europe N V Makita Corporation 3 11 8 Sumiyoshi cho Anjo Aichi 446 8502 Japan Jan Baptist Vinkstraat 2 3070 Kortenberg Belgium 885668 227 EN 20180708 ...

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