X X Bearing canted Properly install the bearing.
X X Insufficient bearing play Contact the Service Center.
X Excessive bearing play Contact the Service Center.
X X Bearing corroded Replace the bearing. Check the seals.
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 Scoring (brinelling) Replace the bearing. Avoid any vibration at standstill
8.11.5 Faults at the external fan
The following
table shows the possible causes of and remedial measures for faults on forced-
ventilated machines.
Table 8-5 Cooling system faults
↓ High temperature rise with load
Possible causes of faults Remedial measures
X Wrong direction of rotation of the external fan Check the electrical connections to the external fan.
X External fan is not running Check the external fan and its connections.
X Reduced air flow Check the air ducts; clean the machine.
Operation
8.11 faults
LOHER CHEMSTAR 1PS2
Operating Instructions 08/2016 83
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