Start-Up; Maintenance And Repair; Fault Finding Chart - Xylem LOWARA SEKAMATIK 100 E Manuel D'installation, D'utilisation Et D'entretien

7. 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.
Make sure that the correct phase sequence was proofed at
the 3-ph models (see 5.3.).
Turn the operation switch into the position "Auto".
In combination with the pneumatic level control the pump
starts and stops according to the liquid level in the tank.

8. 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 original 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 ones. 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 continuously, 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.
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 contact our Sales and Service Department.
The oil should be replaced after 3000 operating hours.
Oil type: Shell Tellus C22. Used oil is to be disposed
accordingly.
Servicing Contract
For a regular expert execution of all necessary maintenance
and inspection we recommend the conclusion of a servicing
contract by our Sales and Service Department.

9. Fault Finding Chart

Before maintenance or repair disconnect the pump from
the power supply to avoid accidental starting of the pump!
Fault Cause
Pump does not Supply failure
start
Impeller blocked by
impurities
Pressure hose is
leaky or clogging
Fuses blow due to
use of wrong type of
fuse
Pump does not Pressure hose is
stop leaky or clogging
Control box failure
Swing check valve is
blocked or leaky
Failure advice or see 5.2.
alarm advice at
the control box
12
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
replace
Install fuses of the
correct type
Check the hose
and clean or
replace
Check the control
box and replace it
if necessary
For emptying the
dischrage pipe
tightened the
drainscrew at the
swing check valve
housing. Loose the
elastic union piece
and screw off the
gate valve. Check
and clean the
swing check valve.
Never take off the
housing from the
tank.