Service And Maintenance; General Maintenance; Cleaning The Strainer; Use With Salt Water Or Sea Water - Lorentz PS2-150 Manuel D'installation Et De Fonctionnement

50 Pump Installation

8.5.5 Service and Maintenance

8.5.5.1 General Maintenance

Motor – The motor requires no maintenance. It has no
brushes or other frequently wearing parts.
CAUTION – If ball bearings need replacing,
bearings with C3 air and high-tempera-
ture grease (approx. 180 °C / 360 °F) must
be used!
Pump end – The pump mechanism (pump end) is lubricat-
ed only by water and requires no maintenance. It may wear
after some years, especially if there are abrasive solids in the
water. If sand accumulates in the pool or pipes as a result
of normal pumping, it is best to take periodic measurement
of the pump's performance. A worn pump end can be easily
replaced in the field.
If the pump is running with seawater, the pump end must
be cleaned periodically. The strainer basket must also be
cleaned regularly to avoid excessive salt built-up.

8.5.5.2 Cleaning the Strainer

CAUTION – The strainer basket must be
periodically emptied. A full or dirty
strainer will impair the pump's flow rate
and the filtration.
(1) Shut down pump
(2) Close shut-off valves
(3) Open lid. If this is not possible by hand, use the
opening device (included in the delivery). Remove the
strainer basket, clean and replace it.
(4) Close lid
(5) Open shut-off valves
(6) Restart pump

8.5.5.3 Use with salt water or sea water

In use, crystallized salt will build up in the pump. The rate of
build-up (crystallization) will depend on the concentration
of the salt and the temperature of the air and water. In
salt water pools, the pump must be inspected and cleaned
regularly by removing the drain plug and filter. When the
salt deposits cannot be easily cleaned the pool profession-
al must disassemble the pump and clean it. See chapter
"8.5.5.4 Replacement of the Mechanical Seal" on page
51 for disassembly instruction.