Service and maintenance
8.9 Checking tightness of fastening bolts
BA 2030
Operating Instructions, 11/2017, A5E37880173A/RS-AE
85
8.9
Checking tightness of fastening bolts
ATEX version gearboxes
Loose parts can cause sparks through impact.
Entry of foreign bodies can cause sparks.
Note
Replace damaged headless bolts with new bolts of the same type and strength class.
Switch off the power supply to the drive unit. Check all fastening bolts for tightness using a
torque wrench.
The general tolerance for the tightening torque is 10 %. The tightening torque is based on a
friction coefficient of μ
= 0.14.
Table 8- 9
Tightening torques for fastening bolts
Thread size
Tightening torque for strength class
8.8
10.9
12.9
[Nm]
[Nm]
[Nm]
M4
3
4
5
M5
6
9
10
M6
10
15
18
M8
25
35
41
M10
50
70
85
M12
90
120
145
M16
210
295
355
M20
450
580
690
M24
750
1 000
1 200
M30
1 500
2 000
2 400
M36
2 500
3 600
4 200
8.10
Inspecting the gearbox
Carry out a scheduled inspection of the gearbox once a year in accordance with the possible
criteria listed in General notes about maintenance work (Page 65).
Check the gearbox in accordance with the criteria set out in General information and safety
Summary of Contents for BA 2030 SERIES
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Page 62: ...Operation BA 2030 60 Operating Instructions 11 2017 A5E37880173A RS AE ...
Page 66: ...Faults causes and remedies BA 2030 64 Operating Instructions 11 2017 A5E37880173A RS AE ...
Page 90: ...Disposal BA 2030 88 Operating Instructions 11 2017 A5E37880173A RS AE ...
Page 164: ...Your suggestions BA 2030 162 Operating Instructions 11 2017 A5E37880173A RS AE ...
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