Hitachi EX550-5, Руководство по ремонту

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GENERAL INFORMATION / Tightening
W1-2-2
Torque Specifications (continued)
Torque
No. Descriptions
Bolt Dia
mm
Q’ty
Wrench Size
mm
N
⋅
m kgf
⋅
m lbf
⋅
ft
14 Travel device mounting bolt
Travel motor mounting bolt
Sprocket mounting bolt
22
18
22 40
8
48
32
27
32 740
295
32
75
30
75 540
215
540
15 Upper roller mounting 20 24 30 540 55 400
STD, H 24 64 36 930 95 690 16 Lower roller mounting bolt
LC, LCH 24 72 36 930 95 690
STD, H 24 392 32 1370 140 1010 17 Track shoe bolt
LC, LCH 24 416 32 1370 140 1010
STD, H 24 16 36 930 95 690 18 Track guard mounting bolt
LC, LCH 24 24 36 930 95 690
19 Track frame mounting bolt 33 36 50 2160 225 1590
Coupling 8 13 10.5 to
12.5
10.5 to
1.26
7.6 to
9.1
20 Coupling and clamp of low pres-
sure piping
Clamp 1/4-28UNF 11 5.9 0.6 4.3
21 Counterweight mounting bolt
Counterweight retaining bolt
45
24 2
4 65
36 2750
440
280
45
2030
330
22 Front pin-retaining bolt
Front pin-retaining nut
20
20 30
30 390
390 40
40 290
290
NOTE: 1. When tightening bolts and nuts, apply a
lubricant to threads to reduce friction.
(i.e.: white zinc B dissolved into spindle
oil)
2. Remove rust, soil, and dust before
tightening.
3. Use LOCTITE to the engine cushion
rubber mounting nuts and the lower
roller mounting bolts.