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Remedying Faults on the Drive Unit
WARNING!
ATEX pumps in areas at risk from explosion
Immediately stop the pump in the event of leakages,
unusual noises, high temperatures, unusual smells,
vibrations and rectify the cause.
WARNING!
Danger of an electric shock
Personnel working on electrical parts can be electro‐
cuted if all electrical lines carrying current have not
been disconnected.
– Disconnect the supply cable before working on the
motor and prevent it from being reconnected acci‐
dentally.
– Any separately driven fans, servo motors, speed
controllers or diaphragm rupture sensors fitted
should also be disconnected.
– Check that the supply cables are de-energised.
WARNING!
Risk of injury from the fan impeller
The fan impeller beneath motor's fan cowling can
cause severe injuries while it is turning.
– The pump must only be connected to the mains
voltage with the fan cowling closed.
CAUTION!
Warning of feed chemical spraying around
Feed chemical can spray out of the hydraulic compo‐
nents if they are manipulated or opened due to pres‐
sure in the liquid end and adjacent parts of the system.
– Disconnect the pump from the mains power supply
and ensure that it cannot be switched on again by
unauthorised persons.
– Depressurise the system before commencing any
work on hydraulic parts.
Rectify functional faults on the liquid ends and bought-
in parts as per their operating instructions.
Remedying Faults on the Drive Unit
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