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GENERAL / Tightening TIGHTENING TORQUE SPECIFICATION No.

Descriptions

1

Engine cushion Front rubber Rear mount-ing bolt

2 3 4 5

Engine bracket mounting bolt Radiator mounting bolt Hydraulic oil tank mounting bolt Fuel tank mounting bolt

6

ORS fittings for hydraulic hoses and piping

7 8 9 10 11 12 13 14 15 16 17

18 19

Engine cushion rubber Cushion rubber-machine

Pump device mounting bolt Control valve mounting bolt (hexagonal wrench)

Swing device mounting bolt Swing motor mounting bolt (hexagonal wrench)

Battery mounting nut (except ZAXIS460LCH) Battery mounting nut (ZAXIS460LCH) Cab mounting nut Swing bearing mounting bolt to upperstructure Swing bearing mounting bolt to undercarriage Travel device mounting bolt Travel motor mounting bolt Sprocket mounting bolt STD, H Upper roller mounting LC, LCH STD, H Lower roller mounting bolt LC, LCH STD, H Track shoe bolt LC, LCH STD LC Track guard mounting bolt H LCH Track mounting bolt LC, LCH

Bolt Dia Wrench QÂ’ty Size (mm) mm 22 2 32 22 2 32 18 4 27 14 8 22 16 4 24 16 8 24 16 8 24 3 12UNF 1 36 16 7 12UNF 41 1 16 12 12 19 20 4 17 22 26 32 18 24 14 8 3 13 12 2 19 16 6 24 27 36 41 27 36 41 22 40 32 18 8 27 22 48 32 18 16 27 18 24 27 22 64 32 22 72 32 24 392 32 24 424 32 22 28 32 22 36 32 22 40 32 22 40 32 33 36 50

W1-2-1

750 750 400 180 210 210 210

Torque (kgf m) (76.5) (76.5) (41.0) (18.5) (21.5) (21.5) (21.5)

(lbf ft) (550) (550) (295) (135) (155) (155) (155)

180

(18.0)

(135)

210

(21.5)

(155)

90 400 750 300 20 35 210 1400 1400 750 300 750 400 400 750 750 1400 1400 750 750 750 750 1750

(9.2) (41.0) (76.5) (30.5) (2.0) (3.5) (21.5) (143) (143) (76.5) (30.5) (76.5) (41.0) (41.0) (76.5) (76.5) (143) (143) (76.5) (76.5) (76.5) (76.5) (178)

(66) (295) (550) (220) (15.0) (26) (155) (1030) (1030) (550) (220) (550) (295) (295) (550) (1030) (1030) (550) (550) (550) (550) (550) (1290)

Nm

Hitachi zaxis 450lch excavator service repair manual  
Hitachi zaxis 450lch excavator service repair manual  
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