GENERAL / Tightening TIGHTENING TORQUE SPECIFICATION W1-2-1 No.
Descriptions Bolt Dia Q’ty Wrench Size (mm) Torque mm Nxm (kgfxm) (lbfxft) 1 Engine cushion rubber mount- ing bolt Front 27 2 41 1050 (105) (775) Rear Engine - cushion rubber 22 2 32 750 (76.5) (550) Cushion rubber-machine 18 4 27 400 (41.0) (295) 2 Engine bracket mounting bolt 14 8 22 210 (21) (155) 3 Radiator mounting bolt 20 4 30 550 (56) (405) 4 Hydraulic oil tank mounting bolt 16 8 24 210 (21.5) (155) 5 Fuel tank mounting bolt 16 8 24 210 (21.5) (155) 6 ORS fittings for hydraulic hoses and piping 1 − 1 − 3 −12UNF −12UNF 36 41 180 (18.0) (135) 210 (21.0) (155) 16 7 16 7 Pump device mounting bolt 12 12 19 98 (9.2) (66) 8 Fan pump mounting bolt 18 4 14 holes 230 (23) (170) 9 Fan motor mounting nut 12 2 19 110 (11) (81.0) 10 Control valve mounting bolt 20 4 30 400 (41.0) (295) 11 Control valve bracket mounting bolt 20 6 30 400 (41.0) (295) 12 Swing device mounting bolt 22 26 32 750 (76.5) (550) 13 Swing motor mounting bolt 18 24 14 300 (30.5) (220) 14 Battery mounting nut 12 2 19 35 (3.5) (26) 15 Cab mounting nut 16 6 24 210 (21.5) (155) 16 Cab anchor bolt 22 2 32 550 (55) (405) 17 Swing bearing mounting bolt to upperstructure Swing bearing mounting bolt to undercarriage 30 27 36 36 46 41 1950 (195) (1440) 1400 (143) (1030) 18 Travel device mounting bolt Travel motor mounting bolt Sprocket mounting bolt 22 18 22 48 8 48 32 27 32 750 (76.5) (550) 300 (30.5) (220) 750 (76.5) (550) 19 Upper roller mounting bolt 450-3, 470H-3, 450LC-3, 470LCH-3 18 24 27 400 (41.0) (295) 500LC-3, 520LCH-3 20 24 30 550 (55) (405) 20 Lower roller mounting bolt 450-3, 470H-3 22 64 32 750 (76.5) (550) 450LC-3, 470LCH-3 22 72 32 750 (76.5) (550) 500LC-3, 520LCH-3 24 64 36 950 (95) (700) 21 Track shoe bolt 450-3, 470H-3 24 392 32 1400 (143) (1030) 450LC-3, 470LCH-3 24 424 32 1400 (143) (1030) 500LC-3, 520LCH-3 24 392 32 1400 (143) (1030) 22 Track guard mount- ing bolt 450-3, 450LC-3 22 16 32 750 (76.5) (550) 470H-3 22 28 32 750 (76.5) (550) 470LCH-3 22 40 32 950 (95) (700) 500LC-3 22 16 36 750 (76.5) (550) 520LCH-3 24 28 36 950 (95) (700) 23 Track mounting bolt (LC, LCH) 33 36 50 1750 (178) (1290) MT, MTH 33 36 50 2200 (224) (1620) 24 Low-pressure piping Flex master coupling 8 13 205 to (1.05 to (7.7 to 12.5 1.26) 9.2) T bolt clamp 1/4-28 UNF 11 10 (1.0) (7.4)