
9.3.4
External fan made of plastic
External fans made of plastic feature a cast-on driver similar to a parallel key. The external fan
is secured using a retaining ring to prevent axial movement.
Disassembly
1. The external fan
①
is fixed on the shaft with a retaining ring
②
. Remove the retaining ring.
Pliers according to DIN 5254 should preferably be used for this purpose.
2. Pull off the external fan by hand.
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Figure 9-2
Ventilation (schematic diagram with radial fan)
Assembly
1. Push the external fan
①
up to the end stop on the shaft extension.
2. Insert the retaining ring
②
into the corresponding groove and check its fit.
● 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.
9.3.5
External fan cover
The external fan is installed in the external fan cowl. To remove or replace it, the external fan
cowl must be disassembled.
Maintenance
9.3 Corrective maintenance
1MB5 SH 400/450
Operating Instructions, 05/2019, A5E45959221A
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Summary of Contents for SIMOTICS XP 1MB5 SH400
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