Maintenance
9.5 Corrective maintenance
Smoke extraction motors
Operating Instructions, 03/2016, 5 610 80000 40 018
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9.5.4
Dismantling
9.5.4.1
Disassembling smoke extraction motors
Note
Before commencing disassembly, you should mark how each of the fastening elements has
been assigned, as well as how internal connections are arranged, for re-assembly purposes.
9.5.4.2
Notes on disassembly
Note
Before commencing removal, you should mark how each of the fastening elements has been
assigned, as well as how internal connections are arranged. This simplifies subsequent
reassembly.
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, the pulling tool can be placed 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.
9.5.4.3
Bearing bushes
Protect the bearings against the ingress of dirt and moisture.
1.
Replace any corroded screws.
2.
Take care not to damage the insulation of live parts.
3.
Document the position of any rating and supplementary plates that have been removed.
4.
Avoid damaging the centering edges.
