Group 2 Tightening Torque: 1. Major Components
Group 2 Tightening Torque: 1. Major Components
Group 2 Tightening Torque: 1. Major Components
1. MAJOR COMPONENTS
Torque
No. Descriptions Bolt size
kgfşm lbfşft
1 Engine mounting bolt, nut M12 ź 1.75 10Ź0.5 72.3Ź3.6
2 Engine Radiator mounting bolt, nut M12 ź 1.75 9.3Ź1.9 67.3Ź13.7
3 Coupling mounting bolt M16 ź 2.0 22.0Ź1.0 159.1Ź7.2
4 Main pump mounting bolt M10 ź 1.5 4.80Ź0.3 34.7Ź2.2
5 Main control valve mounting bolt M12 ź 1.75 12.2Ź1.3 88.2Ź9.4
Hydraulic
6 Fuel tank mounting bolt M20 ź 2.5 46.0Ź5.1 332.7Ź36.9
system
7 Hydraulic oil tank mounting bolt M20 ź 2.5 46.0Ź5.1 332.7Ź36.9
8 Turning joint mounting bolt, nut M12 ź 1.75 12.2Ź1.3 88.2Ź9.4
9 Swing motor mounting bolt M20 ź 2.5 57.9Ź8.7 418.8Ź62.9
10 Swing bearing upper mounting bolt M20 ź 2.5 57.8Ź6.4 418.1Ź46.3
11 Swing bearing lower mounting bolt M20 ź 2.5 57.8Ź6.4 418.1Ź46.3
12 Front axle mounting bolt, nut M16 ź 2.0 29.6Ź3.2 214.1Ź23.1
13 Rear axle mounting bolt, nut M20 ź1.5 58.0Ź6.3 419.5Ź45.6
Power
15 train Transmission mounting bolt M20 ź 2.5 44.0Ź2.0 318.3Ź14.5
system
16 Oscillating cylinder mounting bolt M22 ź 1.5 83.2Ź9.2 601.8Ź66.5
17 Oscillating cylinder support bolt M16 ź 2.0 29.6Ź3.2 214.1Ź23.1
18 Wheel nut M20 ź 1.5 57.5Ź2.5 415.9Ź18.1
19 Front drive shaft mounting bolt, nut M10 ź 1.25 5.9Ź0.6 42.7Ź4.3
20 Rear drive shaft mounting bolt, nut M10 ź 1.25 5.9Ź0.6 42.7Ź4.3
21 Counter weight mounting bolt M30 ź 3.5 146.0Ź21.9 1056.0Ź158.4
22 Others Cab mounting bolt, nut M12 ź 1.75 12.2Ź1.3 88.2Ź9.4
23 Operator's seat mounting bolt M 8 ź 1.25 1.17Ź0.1 8.5Ź0.7
Ɠ For tightening torque of engine and hydraulic components, see each components disassembly and
assembly.
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2. TORQUE CHART
The torques given are standard figures. Any figures specifically described in this manual has priority.
1) METRIC BOLT-coarse thread
8T 10T
Bolt size
kgşm lbşft kgşm lbşft
M 6ź1.0 0.85 ~ 1.25 6.15 ~ 9.04 1.14 ~ 1.74 8.2 ~ 12.6
M 8ź1.25 2.0 ~ 3.0 14.5 ~ 21.7 2.73 ~ 4.12 19.7 ~ 29.8
M10ź1.5 4.0 ~ 6.0 28.9 ~ 43.4 5.5 ~ 8.3 39.8 ~ 60
M12ź1.75 7.4 ~ 11.2 53.5 ~ 79.5 9.8 ~ 15.8 71 ~ 114
M14ź2.0 12.2 ~ 16.6 88.2 ~ 120 16.7 ~ 22.5 121 ~ 167
M16ź2.0 18.6 ~ 25.2 135 ~ 182 25.2 ~ 34.2 182 ~ 247
M18ź2.5 25.8 ~ 35.0 187 ~ 253 35.1 ~ 47.5 254 ~ 343
M20ź2.5 36.2 ~ 49.0 262 ~ 354 49.2 ~ 66.6 356 ~ 482
M22ź2.5 48.3 ~ 63.3 350 ~ 457 65.8 ~ 98.0 476 ~ 709
M24ź3.0 62.5 ~ 84.5 452 ~ 611 85.0 ~ 115 615 ~ 832
M30ź3.5 124 ~ 168 898 ~ 1214 169 ~ 229 1223 ~ 1655
M36ź4.0 174 ~ 236 1261 ~ 1703 250 ~ 310 1808 ~ 2242
8-5
3) PIPE & HOSE
1/4" 19 3 21.7
3/8" 22 4 28.9
1/2" 27 5 36.2
3/4" 36 12 86.8
1" 41 14 101
4) FITTING
1/4" 19 4 28.9
3/8" 22 5 36.2
1/2" 27 6 43.4
3/4" 36 13 94.0
1" 41 15 109
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