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GENERAL / Tightening TIGHTENING TORQUE SPECIFICATIONS (ZAXIS230, 270)

Descriptions Engine cushion rubber mounting bolt (Pump upper) Engine cushion rubber mounting bolt (Pump lower) Engine cushion rubber mounting nut (Fan side) Engine bracket mounting bolt Engine oil filter mounting bolt Radiator mounting bolt (lower) Hydraulic oil tank mounting bolt Fuel tank mounting bolt ORS fittings for hydraulic hoses and piping Pump device mounting bolt Control valve mounting bolt Control valve bracket mounting bolt Swing device mounting bolt Swing motor mounting bolt Battery mounting nut Cab mounting nut Swing bearing mounting bolt (Upperstructure) (Undercarriage) Travel device mounting bolt Model: ZAXIS230 ZAXIS270

Sprocket mounting bolt Model: ZAXIS230 ZAXIS270

Upper roller mounting bolt Lower roller mounting bolt Model: ZAXIS230 ZAXIS230LC ZAXIS270 ZAXIS270LC

Shoe bolt Model: ZAXIS230 ZAXIS230LC ZAXIS270 ZAXIS270LC

Track guard mounting bolt Model: ZAXIS230 ZAXIS270

Flexible master coupling, T bolt clamp for low pressure piping Front pin-retaining nuts

Bolt Dia. (mm)

QÂ’ty

18 2 16 4 14 4 10 8 10 4 12 4 16 4 16 6 1-3/16-12UNF 1-7/16-12UNF 10 8 16 4 16 4 22 12 12 8 10 2 16 4 22 34 22 36

Wrench Size mm 27 24 22 17 17 19 24 24 36 41 17 24 24 32 10 17 24 32 32

Torque Nm

(kgf m)

(lbf ft)

360 210 140 50 50 90 210 210 175 205 50 210 210 640 90 50 205 640 640

(37) (21.5) (14.5) (5.1) (5.1) (9.2) (21.5) (21.5) (18) (21.5) (5.1) (21.5) (21.5) (65) (9.2) (5.1) (21.5) (65) (65)

(265) (155) (103) (37) (37) (66) (155) (155) (130) (155) (37) (155) (155) (470) (66) (37) (151) (470) (470)

20 20

32 40

30 30

630 630

(64) (64)

(460) (460)

20 20

30 30

470 490

(48) (50)

(347) (361

16

32 40 16

24

270

(27.5)

(200)

18 18 20 20

64 72 64 72

27 27 30 30

460 460 670 670

(47) (47) (68) (68)

(340) (340) (491) (491)

20 20 22 22

376 408 360 384

27 27 30 30

840 840 1130 1130

(86) (86) (115) (115)

(622) (622) (832) (832)

18 20 8

8 8

27 30 13

4 4

7 11 30

20

W1-2-2

500 (51) 620 (63) 10.3 to 12.4 (1.05 to 1.26) 5.90 (0.60) 5.90 (0.60) 540 (55)

(370) (456) (7.59 to 9.11) (4.3) (4.3) (398)

Hitachi zaxis 250lcn excavator service repair manual  
Hitachi zaxis 250lcn excavator service repair manual  
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