WIKA GFU08 Mode D'emploi page 37

10. Faults
Faults
Engine hums - pump
blocked.
Motor is running ⇒ No power
Oil splashes on the oil mist
separator.
Oil mist formation
Oil level not visible.
Oil contaminated/cloudy.
Pump does not achieve
vacuum.
Pump generates noise
Pump is losing oil.
WIKA operating instructions SF
Causes
Pump contaminated. Pump
silted up.
Coupling pin broken.
Oil reservoir is overfilled.
Operating pressure = atmos-
pheric pressure
Oil volume too low.
Dirty refrigerant/oil sucked in.
Open the gas ballast valve.
Loosen the cap on the intake
port.
O-ring in the cap of the intake
port is defective.
Oil level too low.
Oil silted up or contaminated.
Line leaking.
Pump is worn after long
usage.
Motor bearings defective.
Ventilator defective.
Oil housing sealing defect.
Oil drain plug leaking.
Sight glass sealing defective.
Oil housing fitting leaking.
Shaft seal defective.
gas filling cart, model GFU08
6
Measures
Replace the pressure stage.
Ask customer service.
Ask customer service.
Oil level to "middle sight
glass". Drain off excess oil.
Oil mist reduces after the
build up of suction pressure.
Refill with oil.
Carry out the oil change.
Turn the gas ballast valve to
closed.
Screw the cap tight.
Replace the O-ring.
Refill with oil.
Change oil.
Check line, seal it.
Repair or replace the pump.
Ask customer service.
Replace the ventilator.
Replace the O-ring.
Replace drain plug.
Replace the sight glass.
Replace the seals of the oil
housing fitting.
Ask customer service.
EN
37