12.3.29 Checking the tightness of fastening bolts
Note
Replace damaged headless bolts with new bolts of the same type and strength class.
Switch o the power supply to the drive unit. Check all fastening bolts for tightness using a
torque wrench.
The general tolerance for the tightening torque in Nm is 10 %. The friction coecient is 0.14 μ.
Table 12-48 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 1000 1200
M30 1500 2000 2400
M36 2500 3600 4200
12.3.30 Replacing the hose of the oil expansion unit
NOTICE
Hose with leaks
The hose of the oil expansion unit is subject to natural wear. The service life depends on the
operating conditions.
Check the hose regularly for tears or leaks.
Renew the hose every 4 years at the latest.
Additional information on the SIMOGEAR geared motor
12.3Specic data gearbox
SINAMICS G115D Wall Mounted distributed drive
526 Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA
To Next Page
Loading...
Need help?
General