Maintenance
44
GA01212_002_C1 - 04/2017 - © Leybold
Remove the handle (11/2).
Loosen the threaded pin (11/8) and pull the coupling (11/7) with the fan blade
off the motor shaft.
Remove the gasket (11/1).
Unscrew the hex. socket screws (11/6).
Remove the electric motor (11/4).
Clean all parts and check that they are in perfect condition; if not, replace
them with new parts.
Reassemble in the reverse order.
5.6.1 Checking the coupling
Requird tools:
Allan key 5 mm, possibly a puller for the coupling.
The coupling is of the ROTEX
®
-type size 24. Checking the coupling may be
conducted by the operator.
For the duration of the coupling check, the motor must be reliably discon-
nected from its source of electrical power and protected against being
switched on.
Under all circumstances comply with the information relating to usage and
maintenance of the elastic coupling between motor and pump. For the
purpose of avoiding hazards the revision intervals specified by the manu-
facturer of the coupling needs to be observed.
To visually check the coupling, unscrew and slowly pull off the motor to the
rear. Inspecting the coupling must be conducted in accordance with the
enclosed manufacturer’s Operating Manual.
When reaching the limit of wear (“max. friction”), the spider must be
exchanged immediately, independent of the inspection intervals.
In addition a visual inspection as to the presence of any damage needs to be
done. If damaged, the coupling must be replaced.
Pls. observe the information in the enclosed manufacturer’s Operating
Manual.
NOTICE
Sketch 2 Axial position of the coupling
2.5 ±0.1
Gasket (11/1)
Coupling (11/7)
