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7-4
1. MAJOR COMPONENTS
GROUP 2 TIGHTENING TORQUE
No.
Descriptions
Bolt size
Torque
kgf
Â
m
lbf
Â
ft
Engine mounting bolt(Engine-Bracket)
Engine mounting bolt(Bracket-Frame)
Radiator mounting bolt, nut
Coupling mounting bolt
Main pump mounting bolt
Main control valve mounting bolt
Fuel tank mounting bolt
Hydraulic oil tank mounting bolt
Turning joint mounting bolt, nut
Swing motor mounting bolt
Swing bearing upper mounting bolt
Swing bearing lower mounting bolt
Travel motor mounting bolt
Sprocket mounting bolt
Carrier roller mounting bolt, nut
Track roller mounting bolt
Counter weight mounting bolt
Cab mounting bolt, nut
Operator's seat mounting bolt
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Engine
Power
train
system
Under
carriage
Others
Hydraulic
system
6.9
Ü
1.4
25
Ü
2.5
6.9
Ü
1.4
9.25
Ü
0.25
9.5
Ü
1.9
6.9
Ü
1.4
12.8
Ü
3.0
12.8
Ü
3.0
6.9
Ü
1.4
19.6
Ü
2.9
12.8
Ü
3.0
12.8
Ü
3.0
13.8
Ü
2.0
12.8
Ü
3.0
12.8
Ü
3.0
41.3
Ü
6.2
57.8
Ü
6.4
12.8
Ü
3.0
1.17
Ü
0.1
50
Ü
10.0
181
Ü
18.1
50
Ü
10.0
67
Ü
1.8
69
Ü
14.0
50
Ü
10.0
93
Ü
22.0
93
Ü
22.0
50
Ü
10.0
142
Ü
21.0
93
Ü
22.0
93
Ü
22.0
100
Ü
14.0
93
Ü
22.0
93
Ü
22.0
299
Ü
45.0
418
Ü
46.3
92
Ü
22.0
8.5
Ü
0.7
M10
Ý
1.5
M12
Ý
1.75
M10
Ý
1.5
M12
Ý
1.75
M12
Ý
1.75
M10
Ý
1.5
M12
Ý
1.75
M12
Ý
1.75
M10
Ý
1.5
M14
Ý
2.0
M12
Ý
1.75
M12
Ý
1.75
M12
Ý
1.75
M12
Ý
1.75
M12
Ý
1.75
M18
Ý
2.0
M20
Ý
2.5
M12
Ý
1.75
M 8
Ý
1.25
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For tightening torque of engine and hydraulic components, see each component disassembly and assembly.