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GA02329_002_03 - 01/2010 - © Oerlikon Leybold Vacuum
Troubleshooting
Fault
Possible cause
Remedy
Reference
section
*
Oil in intake line
Oil comes from the vacuum system.
Check the vacuum system.
or in vacuum
Anti-suckback valve is obstructed.
Clean or repair the valve.
5.4-F
vessel.
Sealing surfaces of anti-suckback valve
Clean or repair the intake port and valve.
5.4-F
are damaged or dirty.
Oil level is too high.
Drain the excess oil.
5.4-B
Pump’s oil
Exhaust filters are clogged or damaged.
Replace the filters.
5.4-C
consumption too
Nozzle of float valve is clogged.
Check the valve, clean the nozzle.
5.4
high, oil mist at
Oil level is too high.
Drain the excess oil.
5.4-B
exhaust.
Oil is turbid.
Condensation.
Degas the oil or change the oil and clean
4.1/5.4-B
the
pump.
Precaution : open the gas ballast valve or
insert a condensate trap.
Clean the gas ballast intake filter.
5.4-G
Pump is
Oil level is very low
Add oil.
5.4-B
excessively noisy.
(oil is no longer visible).
Oil filter is clogged.
Change the oil and filter.
5.4-B
Large vacuum leak in system.
Repair vacuum leak.
Contact Oerlikon Leybold Vacuum.
* Reference section : This column refers to the section in the Operating Instructions that contains the applicable repair information.
Never mount used seals. Always mount new seals.