Hitachi zaxis zx 180lcn 3 excavator service repair manual

Page 52

GENERAL / Tightening TIGHTENING TORQUE SPECIFICATION

No. 1 2 3 4 5 6 7 8 9

10

11 12 13

14

15

16 17 18 19 20 21

Bolt Dia mm 18 16 12 16 18 16 16 10 16 16 20 12

Wrench Size mm Engine cushion rubber mounting bolt (Pump side) 4 27 Engine cushion rubber mounting bolt (Fan side) 4 24 Engine bracket mounting bolt and nut (Pump side) 8 19 Hydraulic oil tank mounting bolt 4 27 Fuel tank mounting bolt 4 24 Radiator mounting bolt (Upper side) 2 24 Radiator mounting bolt (Lower side) 3 24 Pump mounting bolt 8 17 Control valve mounting bolt 4 24 Control valve bracket mounting bolt 4 24 Swing device mounting bolt 12 30 Swing motor mounting bolt 8 10 17 19 22 ORS fittings for hydraulic hoses and piping 27 32 36 41 Hycolin tube mounting nut 17 Battery mounting bolt 10 4 17 Cab mounting nut 16 4 24 Cab mounting anchor bolt 22 2 32 Cab cushion rubber mounting bolt 12 8 19 6 10 Cover mounting bolt 10 17 12 19 Flexible master coupling of piping 1/4-28UNF 11 9 7 Jubilee clamp of high pressure piping 11 7 4 8 T-bolt clamp of high pressure piping 9 10 (Upperstructure) 20 37 30 Swing bearing mounting bolt to (Undercarriage) 20 36 30 Travel device mounting bolt 20 28 30 Travel reduction device cover mounting bolt 14 12 22 Sprocket mounting bolt 20 32 30 Upper roller mounting bolt 16 16 24 Lower roller mounting bolt 18 72 27 ZAXIS160LC 20 344 27 Track shoe bolt ZAXIS180LC, 180LCN 20 392 27 Track guard mounting bolt 18 16 27 Descriptions

NOTE: 1. Apply lubricant (e.g. white zinc B dissolved into spindle oil) to bolts and nuts to reduce friction coefficient of them. 2. Make sure bolt and nut threads are clean before installing.

W1-2-1

Q ty

Nm 400 240 110 550 270 270 270 65 210 270 490 90 25 30 40 95 140 180 210 35 50 210 550 110 10 50 90 5.9 6 6 6 6 510 490 630 180 480 270 460 804 804 500

Torque (kgf m) (40) (24) (11) (55) (27) (27) (27) (6.5) (21) (27) (50) (9) (2.5) (3) (4) (9.5) (14) (18) (21) (3.5) (5) (21) (55) (11) (1) (5) (9) (0.6) (0.6) (0.6) (0.6) (0.6) (51) (49) (63) (18) (48) (27) (46) (82) (82) (50)

(lbf ft) (290) (175) (80) (400) (195) (195) (195) (47) (152) (195) (360) (65) (18.5) (21.5) (29.5) (70) (101) (230) (152) (25.5) (36) (152) (400) (80) (7.2) (36) (65) (4.4) (4.4) (4.4) (4.4) (4.4) (380) (360) (460) (130) (350) (195) (340) (590) (590) (370)


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