Maintenance
9.3 Corrective maintenance
1LE5, 1PC4 shaft height 315/355
Operating Instructions, 10/2020, A5E41454666A
105
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Alternatively, place the pulling tool at the outer edge of the fan plate.
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Uniformly withdraw the fan from the shaft by turning the pressure screw of the pulling
tool.
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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
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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.
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If any damage is caused, request new parts.
9.3.4
Canopy; mounting a rotary pulse encoder under the canopy
Canopy, encoder under the canopy
For screwed canopies, insert the fastening screws through the holes on the outer surface of
the canopy.
Tighten the fastening screws with a torque of 3 Nm ±10 %.
9.3.5
Tightening torques
Note the information in Chapter Tightening torques (Page 125).
9.3.6
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!
9.3.7
Links
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Replace any corroded screws.
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Take care not to damage the insulation of live parts.
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Document the position of any rating and supplementary plates that have been removed.
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Avoid damaging the centering edges.
