Makita DTW284 Manual De Instrucciones página 9

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 DTW284
Proper fastening torque for standard bolt
N•m
(ft•lbs)
280
(207)
240
(177)
200
(148)
160
2
(118)
120
(89)
80
M12
(59)
40
(30)
0
1. Fastening time (second) 2. Fastening torque
Proper fastening torque for high tensile bolt
N•m
(ft•lbs)
280
(207)
240
(177)
200
(148)
160
2
(118)
120
(89)
80
(59)
40
(30)
0
1. Fastening time (second) 2. Fastening torque
M20
M16
1 2
1
M16H
M14H
M12H
1 2 3
1
Model DTW285
Proper fastening torque for standard bolt
N•m
(ft•lbs)
280
(207)
240
(177)
200
(148)
160
2
(118)
120
(89)
80
M20
(59)
40
(30)
M16
M12
1. Fastening time (second) 2. Fastening torque
Proper fastening torque for high tensile bolt
N•m
(ft•lbs)
280
(207)
240
(177)
200
(148)
160
2
(118)
M16H
120
(89)
80
(59)
M14H 40
(30)
M12H
1. Fastening time (second) 2. Fastening torque
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.
9 ENGLISH
M16
M12
1
0
1
M14H
M12H
0
1
1
M20
M20
M16
M12
2
M16H
M16H
M14H
M12H
2 3