External Fan Made Of Metal; Figure 9-1 Ventilation (Schematic Diagram With Axial Fan) - Siemens SIMOTICS 1PQ8 Operating Instructions Manual

Assembly
Proceed in the reverse order to assemble the external fan cowl.
1. If a speed sensor is installed:
2. Position the external fan cowl and tighten the fixing screws.
3. When installing the external fan cowl, make sure that the retaining components are
4. Connect the encoder cable.
9.2.5

External fan made of metal

External metal fans have a keyway connection and are prevented from axially shifting using
a locking ring.
Disassembly
1. The external fan
2. Use a suitable device to pull off the external fan.
3. Avoid using a hammer.
4. Secure the parallel key from falling out or remove it.
Assembly
1. Remove the parallel key lock or insert it in the keyway.
2. Check the correct seating.
SIMOTICS TN Series N-compact 1PQ8
Operating Instructions 11/2018
– Ensure that the cables of the speed sensor are not damaged during the assembly.
– Before attaching the external fan cowl, route the cables of the speed sensor to the
outside between two cooling ribs and affix them temporarily.
undamaged and correctly installed.
①
is fixed on the shaft with a locking ring
Pliers according to DIN 5254 should preferably be used for this purpose.
Figure 9-1 Ventilation (schematic diagram with axial fan)
Maintenance
9.2 Corrective Maintenance
②
. Remove the locking ring.
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