GROUP 2 TIGHTENING TORQUE GROUP 2 TIGHTENING TORQUE 1. MAJOR COMPONENTS 1. MAJOR COMPONENTS 7-4 No.
Descriptions Bolt size Torque kgf·m lbf·ft 1 Engine Engine mounting bolt (engine-Bracket) M10 × 1.5 6.9±1.0 50±7.2 2 Engine mounting bolt (bracket-Frame) M16 × 2.0 25±2.5 181±18.1 3 Radiator mounting bolt, nut M10 × 1.5 6.9±1.4 50±10.0 4 Cooling fan mounting bolt M 8 × 1.25 1.8±0.2 13±1.4 5 Coupling mounting bolt M10 × 1.5 6.0±1.0 43.4±7.2 6 Hydraulic system Main pump mounting bolt M12 × 1.75 12.3±3.0 92±22.0 7 Main control valve mounting bolt M 8 × 1.25 2.5±0.5 18±3.6 8 Travel motor mounting bolt M12 × 1.75 14.7±2.2 106±15.9 9 Fuel tank mounting bolt M16 × 2.0 29.7±4.5 215±33 10 Hydraulic oil tank mounting bolt M16 × 2.0 29.7±4.5 215±33 11 Turning joint mounting bolt, nut M12 × 1.75 14.7±2.2 106±16.0 12 Power train system Swing motor mounting bolt M16 × 2.0 29.7±4.5 215±33.0 13 Swing bearing upper mounting bolt M16 × 2.0 29.7±4.5 215±33.0 15 Swing bearing lower mounting bolt M16 × 2.0 29.7±4.5 215±33.0 16 Front axle mounting bolt, nut M16 × 2.0 29.7±4.5 215±33.0 17 Rear axle mounting bolt, nut M16 × 2.0 29.7±4.5 215±33.0 18 Gear box mounting bolt M14 × 2.0 19.6±2.9 142±21.0 19 Oscillating cylinder mounting bolt M16 × 2.0 29.7±4.5 215±33.0 20 Oscillating cylinder support bolt M12 × 1.75 12.8±3.0 92.6±22.0 21 Wheel nut M18 × 1.5 46.0±3.0 333±22.0 22 Front drive shaft mounting bolt, nut M10 × 1.25 7.4±1.5 53.5±11.0 23 Rear drive shaft mounting bolt, nut M10 × 1.25 7.4±1.5 53.5±11.0 24 Others Counterweight mounting bolt M20 × 2.5 57.8±6.4 418±46.3 25 Cab mounting bolt, nut M12 × 1.75 12.8±3.0 92±22.0 26 Operator's seat mounting bolt M 8 × 1.25 1.17±0.1 8.5±0.7