OPERATION & MAINTENANCE MANUAL STE35SR
Tightening Torque Specifications
If nuts, bolts, or other parts are not tightened to the specified torque, it will cause looseness or
damage to the tightened parts, and this will cause failure of the machine or problems with
operation.
Always pay careful attention when tightening parts.
Unless otherwise specified, tighten the metric nuts and bolts to the torque shown in the table
below.
If it is necessary to replace any nut or bolt, always use a CFG genuine part of the same size as the
part that was replaced.
Tightening Torque List
Thread
diameter
Across
flats
S/mm
Tightening torque：[N·m (Kgf·m)]
Extent Target
M6 10
11.8～14.7
13.2
M8 13
27～34
31.4
M10 16
59～74
65.7
M12 18
98～123
112.7
M14 21
157～196
176
M16 24
245～309
279
M18 27
343～427
382
M20 30
490～608
549
M22 34
662～829
745
M24 36
824～1030
927
M27 41
1180～1470
1323
Apply the following table for Hydraulic Hose：
N·m
Nominal
number
Thread
Diameter M
Width
across
Flats S
Target value Extent
L
a
M12X1.5 14 16 15-17
M14X1.5 17 16 15-17
M16X1.5 19 26 25-28
M18X1.5 22 37 35-39
M22X1.5 27 47 45-50
M26X1.5 32 89 85-94
S
a
M22X1.2 27 79 75-83
M24X1.5 30 84 80-88
Notice:
L
a
: Light series connector，S
a
: Heavy series connector，see ISO8434-1 for the distinction of
weight series.
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