ProMinent Makro/ 5 Operating Instructions Manual page 46

Troubleshooting
Tasks
Fault description
Pump does not prime in
spite of full stroke
motion and bleeding
Pump does not reach
high pressure rates.
46
Cause Remedy
The valves are Repair the valves - see chapter entitled
dirty or worn. "Repair".
The valves are Repair the valves - see chapter entitled
dirty or worn. "Repair".
The feed chemical Install a suitable filter in the suction line.
has particles larger
than 3 mm.
The motor is wired 1. Check the mains voltage and mains fre‐
incorrectly. quency.
2. Wire the motor correctly.
The mains voltage Eliminate the cause.
has failed.
WARNING!
Warning of hazardous or unknown feed chemical
Should a hazardous or unknown feed chemical be
used, it may escape from the hydraulic components
when working on the pump.
– Take appropriate protective measures before
working on the pump (protective eyewear, protec‐
tive gloves, ...). Read the safety data sheet on the
feed chemical.
– Drain and flush the liquid end before working on
the pump.
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.
Personnel
Technical
personnel
Technical
personnel
Technical
personnel
Electrician
Electrician