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Maintenance
9.3 Corrective maintenance
● Locate the arms of the pulling tool in the breakout openings and slightly tension the pressure
screw of the tool.
● For fans with snapping mechanisms, simultaneously release the two snap-in lugs of the fan
from the annular shaft groove.
Keep the snap-in lugs in this position.
● Uniformly withdraw the fan from the shaft by turning the pressure screw of the pulling tool.
● Do not apply any hammer blows to avoid damaging the rotor shaft, the fan and the bearings.
● Order the appropriate new parts if damaged.
9.3.3.1
Metal fan disassembly
Metal fan
● Remove the locking ring.
● Use a suitable tool to pull off the fan (puller).
● Locate the arms of the pulling tool in the openings in the fan in the vicinity of the hub.
● Alternatively, place the pulling tool at the outer edge of the fan plate.
● Uniformly withdraw the fan from the shaft by turning the pressure screw of the pulling tool.
● Do not apply any hammer blows to avoid damaging the rotor shaft, the fan and the bearings.
● Order the appropriate new parts if damaged.
9.3.3.2
Mounting fans
● Take care not to damage the snapping mechanisms on fans that are equipped with these.
● To ensure this, the fans should be heated to a temperature of approximately 50 °C around
the area of the hub.
● If any damage is caused, request new parts.
9.3.4
Screw lock washers
Nuts or bolts that are mounted together with locking, resilient and/or force-distributing elements
(e.g., safety plates, spring-lock washers, etc.) must be refitted together with identical, fully
functional elements.
Locking and sealing elements must always be replaced!
9.3.5
Links
● Replace any corroded screws.
● Take care not to damage the insulation of live parts.
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1PC134, 1PC136 crane motors SH 132 ... 315
Operating Instructions, 02/2019, A5E43212221A
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