Start-Up; Maintenance And Repair - Homa GPE 60 series Montageanleitung

8. Start-Up

Never let the pump run dry for a long time of period,
as it will destroy the pump (danger of overheating).
Universal pumps: Connect the pump to the mains power
supply and switch the on-off-switch into the desired posi-
tion.
If the motor does not start, the ventilator cowl sits on the
ventilator wheel. To change the position of the ventilator
cowl pull and turn the cowl on the motor unit ( should the
occasion arise lever the cowl from the motor unit by using
a scre driver and set up the cowl on the motor unit again.
If the pump operates water must be raised by open tap. If
the pump operates against a closed tap longer than 5
minutes the pump will be damaged by overheating. To
applicate the pump at an other location please make sure
that no air penetrate in the suction pipe. If air penetrate
into the pipe please repeat the steps described under 7.1
before starting the pump.
Booster units: Connect the booster units to the mains
power supply. Turn the on-off-switch into the position
„on". The green LED at the HPS 1 iluminates. To build up
the pressure in the discharge pipe, which is necessary for
an automatic pump operation the pump starts running
shortly and the yellow LED illuminates. If the yellow LED
extinguish and the necessary pressure for automatic
pump operation is not erect, please proceed as follows:
Please open the tap and press the button „RESTART" to
continue the priming process. Keep the button
„RESTART" pressed until the water raises by open tap.
Now close the tap and release the button „RESTART".
The system build up the necessary pressure. The pump
stops running and the yellow LED extinguish.
If the pump operates water must be raised by open tap. If
the pump operates against a closed tap longer than 5
minutes the pump will be damaged by overheating. To
applicate the pump at an other location please make sure
that no air penetrate in the suction pipe. If air penetrate
into the pipe please repeat the steps described under 7.1
before starting the pump.

9. Maintenance and Repair

In case of a defect of the pump, a repair shall be car-
ried out only by the manufacturer or through an author-
ized workshop. Modifications of the pump must be con-
firmed by the manufacturer. Only HOMA spare parts shall
be used.
In accordance with the product liability law we point
out that we shall not be liable for damages caused by our
product due to unauthorized repair by persons other than
the manufacturer or an authorized workshop or due to the
use of spare parts other than original HOMA parts. The
same product liability limitations are valid for accessories.
Before maintenance or repair disconnect the pump
from the power supply to avoid accidental starting of the
pump!
Before maintenance or repair make sure that all rotat-
ing parts stand still!
Before carrying out maintenance and service, the
pump must be thoroughly flushed with clean water. Rinse
the pump parts in clean water after dismanteling.
At pump types with oil chamber an overpressure can
escape with loosening of the oil chamber control screw.
Screw only when pressure balance took place.
Pumps running under normal operation conditions should
be inspected at least once a year. If the pumped liquid is
very muddy or sandy or if the pump is operating continu-
ously, the pump should be inspected every 1.000 operat-
ing hours.
For long and trouble-free operation of the pump, following
points should be checked regularly:
- Nominal current (A): Check with amp-meter.
- Pump parts and impeller: Check for possible wear.
Replace defective parts.
- Ball bearings: Check the shaft for noisy or heavy opera-
tion (turn the shaft by hand). Replace defective ball bear-
ings. A general overhaul of the pump is usally required in
case of defective ball bearings or poor motor function.
This work must be carried out by an authorized
service workshop.
- Cable entry: Make sure that the cable entry is watertight
and that the cables are not bent sharply and/or pinched.
Additionally at pump types with oil chamber:
- Oil level and oil condition in oil chamber:
Put the pump in horizontal position, so that the screw of
the oil chamber is above (at larger pumps: one of both
screws). Remove the screw and infer a small quantity of
oil. The oil becomes greyish white like milk if it contains
water. This may be the result of defective shaft seal.
In this case leave the condition of the shaft seals by a
HOMA Service to examine.
The oil should be replaced after 3000 operating hours.
Oil type: Shell Tellus C22, degradable HOMA-Atox (avail-
able on request). Used oil is to be disposed accordingly.
Servicing Contract
For a regular expert execution of all necessary mainte-
nance and inspection we recommend the conclusion of a
servicing contract by our HOMA Service. Please contact
our HOMA customer service.
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