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Proper fastening torque for standard bolt with max
impact mode (4)
N•m
(kgf•cm)
M24
400
(4080)
(M24)
M22
300
(3060)
(M22)
M20
2
200
(M20)
(2040)
M16
(M16)
100
(1020)
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 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.
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.
0
1
2
3
1
1. Fastening time (second) 2. Fastening torque
MAINTENANCE
Proper fastening torque for high tensile bolt with
max impact mode (4)
CAUTION: Always be sure that the tool is
switched off and the battery cartridge is removed
before attempting to perform inspection or
maintenance.
N•m
(kgf•cm)
300
(3060)
NOTICE: Never use gasoline, benzine, thinner,
alcohol or the like. Discoloration, deformation or
cracks may result.
M16
M16
200
(2040)
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.
M14
M14
2
M12
100
M12
(1020)
OPTIONAL ACCESSORIES
0
1
2
3
1
1. Fastening time (second) 2. Fastening torque
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.
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 oper-
ation to determine the proper fastening time for your bolt or nut.
NOTE: If the tool is operated continuously until the bat-
tery cartridge has discharged, allow the tool to rest for 15
minutes before proceeding with a fresh battery cartridge.
If you need any assistance for more details regarding
these accessories, ask your local Makita Service Center.
•
Impact socket
•
Extension bar
•
Universal joint
•
Makita genuine battery and charger
•
Pin 4 Set (For DTW701 only)
The fastening torque is affected by a wide variety of
factors including the following. After fastening, always
check the torque with a torque wrench.
NOTE: Some items in the list may be included in the
tool package as standard accessories. They may
differ from country to country.
11
ENGLISH