6.
Initial Start-up
6.1
Loosen the ring nut (160.2) above the strainer basket (143) by turning an-
ticlockwise and lever the transparent lid (160.1). Slowly fill the pump with clean
water until the water level reaches the inlet connection. Put on the transparent
lid and make sure that the O-ring seal (412.1) is well in the housing groove.
Tighten the ring nut (160.2) by hand. Otherwise the pump will prime insuffi-
ciently or not at all.
Never let the pump run dry, not even for the purpose of
checking the direction of rotation!
6.2
After extended periods of storage or down-time of the pump check for smooth
running before re-operating. Therefore put a screwdriver into the slot at the im-
peller’s end (fan side) and turn by hand in the direction of the motor. If neces-
sary remove fan cowl and move the fan by hand in the direction of the motor.
Check for density of the mechanical seal after starting.
6.3
Never operate the pump without the strainer basket (143) or strainer basket
handle respectively (danger of the suction strainer bobbing up), otherwise the
pump may get clogged and blocked.
6.4
Please make sure that the installed shutoff valves in the suction and pressure
lines are completely open. Since the pump must never be allowed to run with
shutoff valves closed!
7.
Maintenance/Repair
The strainer basket (143) must be periodically emptied. A full or dirty strainer
will impair the pump’s flow rate and the filtration.
7.1
Cleaning the strainer
1. Shut off pump
2. Close shutoff valves
3. Open ring nut (160.2), lift transparent lid (160.1).
Remove strainer basket (143), clean and replace it.
Put transparent lid (160.1) back in place and tighten ring nut (160.2).
(see chapter 6.1 and 6.3)
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4. Open shutoff valves
5. Restart pump
7.2
When the pump is shut off by the thermal security in the windings or by the motor
overload switch, the power supply must be cut off and the pump must be checked
for unobstructed and easy rotation, to do so turn the motor shaft at the fan side with
a screwdriver or similar tool. If rotating the motor shaft requires considerable force,
the pump must be checked by an expert. If it rotates easily, remove your tool and
restore the power supply. As soon as the motor has cooled down, the thermal secu-
rity in the windings will reactivate itself, respectively the motor overload switch can
be pressed down. This only may happen one more time. If the pump still shuts off
because of the thermal security in the windings or because of the motor overload
switch the cause of 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
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
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
Replacement of mechanical seal:
Dismantling:
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 8 tapping screws (900).
Removing of the impeller:
The impeller is screwed onto the motor shaft (right-handed thread). Put a
screwdriver into the slot of the motor shaft (fan side) hold it and unscrew the
impeller.
CAUTION
CAUTION
CAUTION
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CAUTION
CAUTION
CAUTION
CAUTION
CAUTION
CAUTION
