Check Of Direction Of Rotation; Installation; Start-Up; Maintenance And Repair - Xylem LOWARA Sekamatik 408 Manuel D'installation, D'utilisation Et D'entretien

5.3. Check of Direction of Rotation

1 Ph-pumps do not require any check, as they
always run with the correct direction of rotation.
If the direction of rotation is wrong, interchange
two of the phases of the electric power supply.
Using a control box with CEE-plug, this may be
done by a 180° turning of
the small round pole-socket at the plug-end
with a screwdriver.

6. Installation

Please pay attention to the local regulations
constructions and authorisations.
Please pay attention to the regulations for lifting
gears.
All underground, concret and mason's work should be
done by an expert.
Choose the installation place by taking into account the
local regulations und the following points:
 Existing supply and disposal installations must be easy
accessable.
 Never install the pump station close to windows and
doors.
 Make sure that the pump statin is protected against
lifting.
 Make sure that the inlet pipes have enough natural fall.
Rückstauebene

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 pump station 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 aud stops according to the liquid level in the tank.
for
Sewer level

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.
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