18
GB
Intervall
Assembly
Action
Carried out by:
As required
Pump exterior
Clean off any stuck on dirt or diesel
Operating personnel
As required
Suction line intake filter
Open and clean (wash out)
Maintenance personnel
Monthly
Housing
Visual check for damage
Operating personnel
Monthly
Housing
Check for leaking seals and loose connections Operating personnel
Monthly
Electrical equipment
Visual check for damage
Operating personnel
Twice a year
Vanes in pump housing
Check for wear or breakage
Maintenance personnel
9.2 Maintenance and inspection table
Defective and worn parts must be replaced.
10. Troubleshooting
Problem
Possible cause
Solution
System does not vent
air within 1 minute the
first time it is used
Leaking seal in suction line
Locate any leaks and restore seal.
Container is empty
Fill the container.
Intake filter clogged
Clean filter.
Intake height > 2m
Shorten suction line,
fill suction line with liquid.
Air cannot escape from delivery line
Open pressure side valve
(delivery nozzle/system valve)
Pump motor not turning
although pump is
switched on
No power supply
Check that the terminal clamps are correctly
attached and that there is sufficient battery power.
Defective fuse
Check the blade fuse in the black holder
on the connection cable. Replace if nec.
Motor running slow
Insufficient power supply
Provide voltage of at least 90 %
of the nominal value
Pump motor turning
but pump not pumping
Counterpressure too high
(bypass open)
Reduce delivery height or use a larger
cable cross-section
Filter (accessory) clogged
Clean filter.
Bypass valve blocked
Remove valve and clean, replace if nec.
Lines/hoses are blocked
Check to see if the suction or delivery hose
is kinked or a valve is closed.
Motor turning in wrong direction
Check that the polarity of the power supply
is correct.
The pump sounds like
it is pumping air
Leaking seal in suction line
Locate any leaks and restore seal.
Container is empty
Fill the container.
Increased noise
development
Cavitation
Reduce intake pressure loss.
Air bubbles in the liquid
Leave the tank to stand for a few minutes.
Air in the suction line
Vent the system via a long delivery interval.
Broken seal
on pump housing
Defective seal
Replace defective seal.
