Makita 6912D Impact Driver User Manual


 
2.
Final manual tightening operation
Standard
After turning the tool off, perform the
pulling on the tool grip in the same
tightening direction.
that can
be
tightened with this tool
is
bolt
Size
final manual tightening operation by
M8
M10
M12
5/16"
3/8"
The maximum
size
of
standard bolts
1/2"
(socket
size:
13/16').
Refer to the
table for the correct tightening torque
and check the torque with
a
torque
wrench.
711 6"
439 kg
.
cm
I
(31.7 ft
.
Ibs.)
I
13/16"
112"
Tightening Socket
torque size
13 mm
11 5 kg
.
cm
(8.3 ft
. Ibs.)
230 kg
.
cm
(16.6 ft. Ibs.)
l7
mm
400 kg
.
cm
(28.9 ft
.
Ibs.)
l9
mm
9/16"
115kg.cm
(8.3 ft
.
Ibs.)
185 kg
.
cm
(13.4 ft
.
Ibs.)
21132"
296 kg
.
cm
121.4 ft
.
Ibs.) 3/4"
CAUTION
:
*When performing the final manual tightening operation, be sure to hold the grip area of
the tool.
*Avoid the following abusive techniques. They can cause the nut or bolt to break
as
well
as
cause tool damage.
I)
Gripping toward the end of the tool.
11)
Stepping on the tool.
Ill)
Strongly applying your weight to the tool.
IV)
Attaching
a
pipe or bar to the end of the tool to create more force on the tool.
0
During final tightening, if your hand does not feel an increasing force on the nut or bolt
as
you pull, the nut or bolt may already be tightened excessively. The nut or bolt may
be very close to breaking. Replace the nut or bolt with
a
new one.
3.
Loosening operation
To
loosen the nut or bolt, turn the tool over (upside-down). Loosen the nut or bolt by
pulling on the tool grip manually in the loosening direction. Then turn the tool on to
quickly and efficiently remove the nut or bolt.
8