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Operation
The proper tightening torque may differ depending upon the kind
or
size
of the bolt. The
relation between tightening torque and tightening time
is
shown in the figures below.
Standard bo1 t
kg
cm
Iff.
Ibrl
MI4
l9/16'1
at high
rpssd
Proper lightening
lorqua
lor
M14
l9/16"1
Proper tightening
torque
lor
M12
1112''I
MI0
13/8"l
SI
low
speed
Proper ttghtenmg torque
lor
MI0
1318")
Proper tightening
torque
lor
M8
15116'1
I
0
I
I
1
1
2
3
4
5
seconds
Tightening time
High tensile bolt
kg
cm
111
Ibd
I
800
1581
MI0
13/8"l
ai
high
speed
Proper
lightening
torque
lor
MI0
l3/8"1
%
600
6
1431-
m
M8
l5/16'1
at
high speed
2
21-
Proper
lightening
torque
lor
M8
l5/16'l
2w
-
1151
I
1
I I
I
0
1
2 3
4 5
IeCondl
Tighiening
time
Hold the tool firmly and place the socket over the bolt or nut. Turn the tool on and
tighten for the proper tightening time.
9