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136
18.7.2. Standard torque list
Unless otherwise specified, tighten the metric bolts and nuts to the torque
shown in the table. The tightening torque is determined by the width across
the flats (b) of the buts and bolts.
If it is necessary to replace any nut or bolt, always use an original spare part
by
YUCHAI ENGINEERING MACHINERY CO. LTD.
and of the same size as
the part that was replaced.
Tighten torque (kg
⋅
m)
Thread diameter
of bolt (mm)
(a)
Width across flat
(mm) (b)
Nominal value
Admissible value
M6
M8
M10
M12
M14
10
13
17
19
22
1.35
3.2
6.7
11.5
18.0
1.2-1.5
2.8-3.5
6.0-7.5
10.0-12.5
16.0-20.0
M16
M18
M20
M22
M24
24
27
30
32
36
28.5
39.0
56.0
76.0
94.5
25.0-31.5
35.0-43.5
50.0-62.0
67.5-84.5
84.0-105.0
M27
M30
M33
M36
M39
41
46
50
55
60
135.0
175.0
225.0
280.0
335.0
120.0-150.0
155.0-195.0
200.0-250.0
250.0-310.0
295.0-370.0
NOTICE:
When tightening panels or other parts having tightening fixture made plastics,
be careful not to use excessive tightening torque: doing so will damage the
plastic parts.
Summary of Contents for YC135
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Page 51: ...51 5 2 1 Transport blocked All dimensions are in mm they may change without notice...
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Page 169: ...169 20 HYDRAULIC SCHEME...
Page 171: ...171 21 ELECTRICAL SCHEME...
Page 179: ...179 24 NOTICE...
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