Start-Up; Maintenance And Repair; Fault Finding Chart - Homa Sanipower-Serie Originalbetriebsanleitung

•
Cut off the blanked off end of the air vent and connect a
DN 70 vent pipe to the tank by means of the flexible
connection supplied. The vent pipe should be led out
into the open air in accordance with local regulations.
•
Mount the supplied pump controller flood protected on
the wall in accordance with local regulations.

8. Start-Up

Never let the pump run dry for a long time of period,
as it will destroy the pump (danger of overheating).
Before starting the disposal unit make sure that all isolating
valves are open and check that the unit runs satisfactorily.
Turn the operation switch into the position "ON".
In combination with the pneumatic level control the pump
starts and stops according to the liquid level in the tank.

9. Maintenance and Repair

In case of a defect of the pump, a repair shall be carried
out only by the manufacturer or through an authorized
workshop. Modifications of the pump must be confirmed 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 prod-
uct 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 rotating
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 operating
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 operation
(turn the shaft by hand). Replace defective ball bearings. 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.
All manuals and user guides at all-guides.com
Visual control at pump types with oil chamber (models
without cooling jacket or model „U" with cooling jacket
and open cooling circuit):
Oil level and oil condition:
The condition of the mechanical seals can be visually con-
trolled as follows:
Put the pump in horizontal position, so that the screw of the
oil chamber is on top (for larger pumps: one of both oil
chamber screws).
Remove the screw and take out a small quantity of oil.
The oil becomes greyish white like milk if it contains water.
This may be the result of defective shaft seals.
In this case the condition of the shaft seals should be
checked by a HOMA Service shop.
The oil should be replaced after 3000 operating hours.
Oil type: degradable HOMA-ATOX. Used oil has to be dis-
posed according to the existing environmental rules and
regulations
Servicing Contract
For a regular expert execution of all necessary maintenance
and inspection we recommend the conclusion of a servicing
contract by our HOMA Service. Please contact our HOMA
customer service.
Return of pumps
to health or toxic, the pump will be classified as contami-
nated.
If HOMA is requested to service the pump, HOMA must be
contacted with details about the pumped liquid, etc. before
the pump is returned for service. Otherwise HOMA can re-
fuse to accept the pump for service (see attachment).
Possible costs of returning the pump are paid by the cus-
tomer. However, any application for service (no matter to
whom it may be made) must include details about the
pumped liquid if the pump has been used for liquids which
are injurious to health or toxic.

10. Fault Finding Chart

the power supply to avoid accidental starting of the pump!
Fault
Pump does not start
Pump does not stop
12
If a pump has been used for a liquid which is injurious
Before maintenance or repair disconnect the pump from
Cause
Supply failure
Impeller blocked by
impurities
Pressure hose is
leaky or clogging
Fuses blow due to
use of wrong type of
fuse
Pressure hose is
leaky or clogging
Control box failure
Remedy
Check the voltage
Close the incoming
sewer, emptying
the tank with the
diaphragm pump,
open the clening
cover, clean the
tank by hand and
remove solids
which may block
the pump
Check the hose
and clean or re-
place
Install fuses of the
correct type
Check the hose
and clean or re-
place
Check the control
box and replace it if
necessary