X Too much grease in bearing Remove surplus grease.
X Wrong grease in the bearing Use the correct grease.
X Friction marks on raceway Replace the bearing.
X Brinelling or scoring Replace the bearing. Avoid any vibration at standstill
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 Remedial measures
X Wrong direction of rotation of the separately
driven fan
Check the electrical connections to the separately driven fan.
X Separately driven fan is not running Check the separately driven fan and its connections.
X Reduced air ow Check the air ducts; clean the machine.
Operation
8.6faults
1LE1, 1FP1/3, 1PC1/3 shaft height 63 ... 315
94 Operating Instructions, 11/2023, A5E38483075A
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