Service And Maintenance - Lorentz PSk2-7 Manuel D'installation Et De Fonctionnement

14 Service and Maintenance

Routine inspection and maintenance
In general, the LORENTZ PSk2 pumps are maintenance-free.
To extend lifetime of the controller a regular inspection is
useful. We recommend an inspection interval of at least one
a year.
Requirement of inspection and maintenance:
(1) The inspection must be performed by professional
technical personnel.
(2) If necessary, cut off the power supply of the controller
first.
(3) Avoid leaving any metal components in the controller,
or else they might cause damage to the equipment.
(4) An electric insulation test has been made on the
controller before it has left the factory. A further test is
not necessary.
(5) Do not use the megohmmeter to test the control circuit.
(6) When conducting any insulation test on the motor, you
must dismantle the connection between motor and
controller.
Main points for inspection and maintenance – The
surface pump motors need to be re-lubricated every 5000 h
of running time as indicated by the label on the motor.
A maintenance kit for lubrication of the motor bearing is
available from LORENTZ.
Please use the controller under the environmental condi-
tions of this manual. Inspect and maintain as per "Table 13:
Inspection overview" on page 78.
Service and Maintenance 77