Hitachi ZX27U-2 Operator's Manual page 190

Hydraulic excavator zaxis series
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Tightening Torque Chart
M552-07-091
N⋅m
(kgf⋅m)
(lbf⋅ft)
6
8
29.5
(3.0)
10
64
(6.5)
12
108
(11)
14
175
(18)
(130)
16
265
(27)
(195)
18
390
(40)
(289)
20
540
(55)
(398)
22
740
(75)
(542)
24
930
(95)
(687)
27
1370
(140)
(1013)
30
1910
(195)
(1410)
33
2550
(260)
(1881)
36
3140
(320)
(2315)
MAINTENANCE
Hexagon Head Bolt
M552-07-090
N⋅m
(kgf⋅m)
(lbf⋅ft)
(22)
19.5
(2.0)
(14)
(47)
49
(5.0)
(36)
(80)
88
(9.0)
(65)
137
(14)
(101)
205
(21)
(152)
295
(30)
(217)
390
(40)
(290)
540
(55)
(398)
690
(70)
(506)
1030
(105)
(759)
1420
(145)
(1049)
1910
(195)
(1410)
2400
(245)
(1772)
M552-07-092
N⋅m
(Kgf⋅m)
(lbf⋅ft)
3.3 to 4.2
(0.3 to 0.4)
(2.2 to 2.9)
9.8
(1.0)
(7.2)
19.5
(2.0)
(14)
34
(3.5)
(25)
54
(5.5)
(40)
78
(8.0)
(58)
118
(12)
(87)
167
(17)
(123)
215
(22)
(159)
275
(28)
(203)
390
(40)
(289)
540
(55)
(398)
740
(75)
(542)
930
(95)
(687)
7-70
Socket Bolt
Wrench
Socket Bolt
Size
mm
N⋅m
(kgf⋅m)
10
13
19.5
(2.0)
17
49
(5.0)
19
88
(9.0)
22
137
(14)
24
205
(21)
27
295
(30)
30
390
(40)
32
36
41
46
50
55
Wrench
Size
(lbf⋅ft)
mm
5
(14)
6
(36)
8
(65)
10
(101)
12
(152)
14
(217)
14
(289)
17

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