Procopi Belstar 50 Instructions De Montage Et D'utilisation page 27

lock ring with soap water. Press the mechanical seal (433) onto the impeller
hub regularly with both thumbs, press the lock ring into the gland housing
(161.2), respectively
Re-assembly of the impeller:
Before re-assembly of the impeller, clean the surface of the lock ring and of the
mechanical seal with alcohol or with a clean paper tissue.
With types Belstar 50, Belstar 75, Belstar 100 and Belstar 150, re-assembly is
effected in reverse order (see Dismantling).
Caution: With three-phase current motors first leave the pumps for 24 hours at
ambient temperature without using it in order to let the glue connection (see
dismantling) impeller/shaft achieve its final consistency.
Pressing on of the impeller to Belstar 200 and Belstar 250:
Screw a bolt (M10) approximately 10 mm into the impeller hub. While using
even pressure on the bolt, slide the impeller down on the motor shaft until the
limit stop is reached. To prevent damage to the motor bearing, support the end
of the motor shaft (center of the fan cover). Next, remove the M10 bolt and
replace it with the impeller cap (260) and O-ring (412.6).
Re-assembly of the motor unit into the pump casing:
Tighten the 10 tapping screws (900) with a tightening moment of 7 Nm.
Do not use force!
7.6
CAUTION
If there is danger of freezing, the pump must be drained ahead of time. For this
purpose open the drain plug (582) in order to drain off all liquid. Also drain all
pipes subject to freezing.
8. In Case of Malfunction
The sealing between the motor and the pump housing is done by means of a
mechanical seal (433). It is normal that a few drops of water seep through once
in a while, especially during the break-in period. Depending on the nature of the
water and the duration of operation said mechanical seal may become leaky
after some time. If the water penetrates continuously, replace the complete me-
chanical seal (433) by a new one, see par. 7.5.
In case of malfunction we recommend contacting the pool builder of the
unit first.
If ball bearings must be replaced, bearings with C3 air and high-temperature
grease (up to approx. 180°C) are to be used!
When restarting the pump, refer to par. 6.
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