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X
X
Bearing corroded
X
Too much grease in bearing
X
Wrong grease in the bearing
X
Friction marks on raceway
X
Brinelling or scoring
8.6.5
Faults at the external fan
The following table shows the possible causes of and remedial measures for faults on
forced-ventilated machines.
Table 8- 4
Cooling system faults
↓ High temperature rise with load
Possible causes of faults
X
Wrong direction of rotation of the external fan
X
External fan is not running
X
Reduced air flow
8.7
Deactivating
Commission any devices provided for protection against condensation after switching off the
machine.
Standard motors SH 63 ... 355
Operating Instructions, 12/2018, A5E38483075A
Replace the bearing. Check the seals.
Remove surplus grease.
Use the correct grease.
Replace the bearing.
Replace the bearing. Avoid any vibration at standstill
Remedial measures
Check the electrical connections to the external fan.
Check the external fan and its connections.
Check the air ducts; clean the machine.
Operation
8.7 Deactivating
95
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