Table of Contents
Advertisement
Tightening Torque Chart
Wrench
Hexagon
Bolt Dia.
Size
Wrench Size
M8
13
M10
17
M12
19
10
M14
22
12
M16
24
14
M18
27
14
M20
30
17
M22
32
17
M24
36
19
M27
41
19
M30
46
22
M33
50
24
M36
55
27
CAUTION: If fixing bolts for counterweight are loos-
ened, 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.
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 ×
Necessary force will be:
120 N•m ÷ 0.25 m = 480 N
N•m
(kgf•m)
6
30
(3.0)
8
65
(6.5)
110
(11)
180
(18)
270
(27)
400
(40)
550
(55)
750
(75)
950
(95)
1400
(140)
1950
(195)
2600
(260)
3200
(320)
N = 120 N•m
MAINTENANCE
M552-07-091
Socket Bol
(lbf•ft)
N•m
(22)
20
(48)
50
(81)
90
(135)
140
(200)
210
(295)
300
(410)
400
(550)
550
(700)
700
(1030)
1050
(1440)
1450
(1920)
1950
(2360)
2450
7-90
M552-07-090
t
(kgf•m)
(lbf•ft)
N•m
(2.0)
(15)
10
(5.0)
(37)
20
(9)
(66)
35
(14)
(103)
55
(21)
(155)
80
(30)
(220)
120
(40)
(295)
170
(55)
(410)
220
(70)
(520)
280
(105)
(770)
400
(145)
(1070)
550
(195)
(1440)
750
(245)
(1810)
950
M157-07-225
(kgf•m)
(lbf•ft)
(1.0)
(7.4)
(2.0)
(15)
(3.5)
(26)
(5.5)
(41)
(8.0)
(59)
(12)
(89)
(17)
(125)
(22)
(160)
(28)
(205)
(40)
(295)
(55)
(410)
(75)
(550)
(95)
(700)
Advertisement
Table of Contents
