Zoomlion RT75, Operator'S Manual

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RT75 Rough Terrain Crane
09 - 5
9.3 TORQUE VALUES
Table 09
–
5 Torque Values for Dry
–
Uncoated Fasteners
Torque Values to be within ± 5%
All Figures in N· m
Note
This table does not apply to hydraulic connections.
Normal
diameter (mm)
Grade 5.6 Grade 8.8 Grade 10.9 Grade 12.9
6 3.3 7 9.9 11.8
8 8.5 18 25.4 30.4
10 16.5 35 49.4 59.2
12 28.7 61 86 103
16 70 149 210 252
20 136.3 290 409 490
24 235 500 705 845
30 472 1004 1416 1697
36 822 1749 2466 2956
42 1319 2806 3957 4742
48 1991 4236 5973 7159
56 3192 6791 9575 11477
64 4769 10147 14307 17148
72 6904 14689 20712 24824
Note
The table includes bolts with
“
coarse threads
”
.
The torque tolerance is ± 5%.
The friction factor is 0.7 times the yield point value.
The above values are suitable for the bolts lubricated. For the bolts without lubrication, the
tightening torque is 133% of the corresponding one shown in the above table.