Tightening Torques, Recommendations - Kalmar DRF420-60S5 Maintenance Manual

10
page –
State
1 untreated
2 bright-galvanized
3 hot-galvanized
Quality
State
Fine M-thread
M81 27 Nm
M101,25 54 Nm
M121,25 96 Nm
M161.5 230 Nm
M181.5 330 Nm
M-thread
M4 3.2 Nm
M5 6.4 Nm
M6 11 Nm
M8 26 Nm
M10 52 Nm
M12 91 Nm
M16 220 Nm
M20 430 Nm
M24 750 Nm
M30 1480 Nm
UDRF01.04GB
F Technical data – Technical data
Bolt
untreated or bright-galvanized
8.8
1 2
24 Nm
48 Nm
85 Nm
205 Nm
294 Nm
2.9 Nm
5.7 Nm
9.8 Nm
24 Nm
47 Nm
81 Nm
198 Nm
386 Nm
668 Nm
1317 Nm
Maintenance manual DRF 400–450
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Tightening torques,
recommendations
The tightening torques in the following table are recommendations
when tightening bolts and nuts.
When torquing using a machine, for example, bolt runner, the tight-
ening torque should be reduced by approx. 5%.
For mild surfaces (hardness below 200 HB), washer shall be used
under both bolt head and nut. Alternatively, use flange bolt or flange
nut.
Tighten to the prescribed torque without stopping.
Recommended tightening torque may vary depending on surface
treatment. Certain combinations of nut and bolt require lubrication
according to the table below.
Nut
untreated
untreated
3
30 Nm
61 Nm
108 Nm
260 Nm
373 Nm
3.6 Nm
7.2 Nm
12.5 Nm
30 Nm
59 Nm
103 Nm
250 Nm
490 Nm
848 Nm
1672 Nm
Lubrication
oil
dry or oil
dry or oil
10.9 12.9
1 1
39 Nm 46 Nm
78 Nm 91 Nm
135 Nm 162 Nm
323 Nm 388 Nm
466 Nm 559 Nm
4.6 Nm 5.5 Nm
9.1 Nm 11 Nm
16 Nm 19 Nm
38 Nm 45 Nm
74 Nm 89 Nm
128 Nm 154 Nm
313 Nm 375 Nm
620 Nm 732 Nm
1050 Nm 1270 Nm
2080 Nm 2500 Nm