Maintenance And Inspection Table; Troubleshooting - CEMO Cematic 12/40 Manual Del Usuario

GB

9.2 Maintenance and inspection table

Intervall Assembly
As required Pump exterior
As required Suction line intake filter
Monthly Housing
Monthly Housing
Monthly Electrical equipment
Twice a year Vanes in pump housing
Defective and worn parts must be replaced.

10. Troubleshooting

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