Procopi Belstar 50 Instructions De Montage Et D'utilisation page 26

the malfunction is to be determined by an expert (e.g. blocking of the pump due
to impurities or sand swept up while vacuuming the bottom of the pool). Check
current supply and fuses.
7.3
CAUTION
If the pump seizes, it has to be cleaned. Repeated starting of a blocked pump
may cause damage to the motor. In that case any guarantee is voided.
7.4
CAUTION
The leakage pipe on the underside between pump housing and motor must
never be clogged or sealed; otherwise the water in it will rise and the motor will
be damaged! Please make sure that leakage cannot cause consequential da-
mages! If necessary provide a suitable drip pan.
7.5 Important Hints for Repair Work
CAUTION
Dismantling:
Replacement of the mechanical seal:
Switch off the pump and disconnect it from the power supply. The exchange of
the mechanical seal has to be done by an expert. The mechanical seal al-
ways has to be replaced completely (433). To do so, it is not necessary to
dismount the complete pump, only the motor unit has to be removed from the
housing (101) by loosening the 10 tapping screws (900).
Removing of the impeller:
With types Belstar 50, Belstar 75, Belstar 100 and Belstar 150 the impeller is
screwed onto the shaft (right handed thread).
Put a screwdriver into the slot of the motor shaft (fan side) hold it and unscrew
the impeller.
Caution: For three-phase current motors the impeller is secured by LOCTITE
480 (similar to Cyanoacrylate instant adhesive), it may be useful to remove the
motor fan blades and to clamp the motor shaft.
With types Belstar 200 and Belstar 250 the impeller is pressed onto the motor
shaft.
Take off the impeller cap (260) with o-ring (412.6) by unscrewing it. Separate
the impeller (230) from the motor shaft (819) with a M10 x 50 screw, by holding
the impeller by hand and while turning in the screw.
Assembly:
Mounting of the new mechanical seal:
Slightly moisten the impeller hub (230) as well as the sleeve of the complete
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