Maintenance
9.5 Corrective maintenance
Smoke extraction motors
80
Operating Instructions, 03/2016, 5 610 80000 40 018
9.5.5
Assembly
If possible, assemble the machine on and alignment plate. This ensures that the mounting
feet surfaces are all on the same plane.
Avoid damaging the windings protruding out of the stator enclosure when fitting the end
shield.
9.5.5.1
Assemly
Sealing measures
1.
Apply the necessary liquid sealant, e.g. Fluid-D, Hylomar, to the centering edge.
2.
Check the terminal box seals, and if required, replace these.
3.
Repair any damage to the paint, also to screws/bolts.
4.
Take the necessary measures to ensure compliance with the applicable degree of
protection.
5.
Do not forget the foam rubber cover in the cable entry. Completely seal the holes, and
ensure that cables do not come into contact with sharp edges.
See also
Terminal boxes, end shields, grounding conductors, sheet metal fan covers (Page 82)
9.5.5.2
Fitting the bearing cartridges
When fitting the bearing cartridges, observe the specified screw tightening torques
(Page 82).
9.5.5.3
Fitting bearings
Sealing the bearings
Note the following details:
●
Shaft sealing rings are used to seal machines at the rotor shaft.
–
For V rings, comply with the assembly dimension.
●
Use the specified bearings.
●
Ensure that the bearing sealing disks are in the correct position.
●
Insert the elements for bearing preloading at the correct end.
●
Fixed bearings can have a locking ring or bearing cover.
●
Seal the bearing cap screws with the appropriate gaskets or with grease.
●
Do not interchange the position of the bearing covers (DE and NDE or inner and outer).
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