MAINTENANCE
7-115
Tightening Torque Chart
Bolt Dia.
Wrench
Size
Hexagon
Wrench Size
M552-07-091
M552-07-090
Socket Bol
t
M157-07-225
N•m
(kgf•m)
(lbf•ft)
N•m
(kgf•m)
(lbf•ft)
N•m
(kgf•m)
(lbf•ft)
M8
13
6
30
(3.0)
(22)
20
(2.0)
(15.0)
10
(1.0)
(7.4)
M10
17
8
65
(6.5)
(48)
50
(5.0)
(37)
20
(2.0)
(15.0)
M12
19
10
110
(11)
(81)
90
(9.0)
(66)
35
(3.5)
(26.0)
M14
22
12
180
(18)
(135)
140
(14)
(103)
55
(5.5)
(41)
M16
24
14
270
(27)
(200)
210
(21)
(155)
80
(8.0)
(59)
M18
27
14
400
(40)
(295)
300
(30)
(220)
120
(12)
(89)
M20
30
17
550
(55)
(410)
400
(40)
(295)
170
(17)
(125)
M22
32
17
750
(75)
(550)
550
(55)
(410)
220
(22)
(162)
M24
36
19
950
(95)
(700)
700
(70)
(520)
280
(28)
(205)
M27
41
19
1400
(140)
(1030)
1050
(105)
(770)
400
(40)
(295)
M30
46
22
1950
(195)
(1440)
1450
(145)
(1070)
550
(55)
(410)
M33
50
24
2600
(260)
(1920)
1950
(195)
(1440)
750
(75)
(550)
M36
55
27
3200
(320)
(2360)
2450
(245)
(1810)
950
(95)
(700)
d
WARNING: If fixing bolts for counterweight are
loosened, consult your nearest authorized dealer.
IMPORTANT: Make sure bolt and nut threads are clean
before installing.
Apply lubricant (e. g. white zinc B solved
into spindle oil) to bolts and nuts to
stabilize their friction coefficient.
f
NOTE: Tightening torque required is shown in N•m.
For example, when tightening a bolt or nut with a
wrench of 1 m length, turning the end of it with a
force of 120 N, the torque produced will be:
1 m ×120 N = 120 N•m
To produce the same torque with a wrench of 0.25 m:
0.25 m ×
N = 120 N•m
Necessary force will be:
120 N•m ÷ 0.25 m = 480 N
Summary of Contents for ZAXIS 450LC-3
Page 1: ...Serial No 020001 and up Hydraulic Excavator PART NO EM1J3 NA1 2 450LC 3 650LC 3 850LC 3 ...
Page 2: ... ...
Page 4: ......
Page 45: ...SAFETY SIGNS S 33 SS 862 SS 863 SS 859 1 2 3 ...
Page 46: ...SAFETY SIGNS S 34 SS3106039 SS3092349 SS 408 4 5 6 ...
Page 48: ...SAFETY SIGNS S 36 SS 024 SS 710 SS3089713 10 11 12 ...
Page 136: ...OPERATOR S STATION 1 88 MEMO ...
Page 138: ...BREAK IN 2 MEMO ...
Page 150: ...OPERATING THE ENGINE 3 12 MEMO ...
Page 270: ...TRANSPORTING 6 78 MEMO ...
Page 406: ...MAINTENANCE 7 136 M1J1 07 083 33 Retighten air compressor mounting bolts ...
Page 408: ...MAINTENANCE 7 138 MEMO ...
Page 410: ...MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS 9 MEMO ...
Page 438: ...SPECIFICATIONS 12 14 MEMO ...
Page 470: ...OPTIONAL ATTACHMENTS AND DEVICES 13 32 MEMO ...
Page 474: ...INDEX 14 MEMO ...