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Maintenance
9.4 Corrective maintenance
Replacing bearings
Recommended interval after which bearings are to be replaced under normal operating
conditions:
Table 9-4
• Do not reuse bearings that have been removed.
• Remove the dirty spent grease from the bearing shield.
• Replace the existing grease with new grease.
• Replace the shaft seals when the bearings are replaced.
• Slightly grease the contact surfaces of the sealing lips.
Note
Special operating conditions
The operating hours are reduced, e.g.
• When machines are vertically mounted.
• High vibration and surge loads
• Frequent reversing operation
• Higher ambient temperatures.
• High speeds etc.
92
Bearing replacement intervals
Ambient temperature
40 °C
40 °C
40 °C
Principle of operation
Vertical coupled operation
Horizontal coupled operation
With axial and radial forces
Operating Instructions, 12/2023, A5E43212221A
Bearing replacement intervals
20 000 h
40 000 h
20 000 h
1PC134, 1PC136 crane motors SH 132 ... 315
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