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!
Danger of personnel injury and material damage
The use of untested third party parts can result in personnel
injuries and material damage.
–
Only fit parts to metering pumps, which have been
tested and recommended by ProMinent.
CAUTION!
Warning of feed chemical spraying around
Feed chemical can spray out of the hydraulic components if
they are manipulated or opened due to pressure 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 unauthor‐
ised persons.
–
Depressurise the system before commencing any work
on hydraulic parts.
Fault description
Cause
Remedy
Personnel
Pump does not prime in spite of
full stroke motion and bleeding.
The valves are dirty or
worn.
Repair the valves - see chapter enti‐
tled "Repair".
Technical per‐
sonnel
Pump does not reach high pres‐
sure rates.
The valves are dirty or
worn.
Repair the valves - see chapter enti‐
tled "Repair".
Technical per‐
sonnel
The feed chemical has
particles larger than 0.3
mm.
Install a suitable filter in the suction
line.
Technical per‐
sonnel
The motor is wired incor‐
rectly.
1. Check the mains voltage and
mains frequency.
2. Wire the motor correctly.
Electrician
The mains voltage has
failed.
Eliminate the cause.
Electrician
The power end motor is very
hot.
The discharge line is seri‐
ously constricted.
n
Rectify any constriction of the
discharge line.
Technical per‐
sonnel
All other faults.
Other causes.
Call ProMinent
®
Service.
Tasks
Troubleshooting
37
Содержание Sigma / 2 Basic Type SBKa
Страница 51: ...51 ...