Oerlikon Leybold Vacuum 960 862, Operating Instructions Manual

Page: 41 / 56

41 GA02319_002_03 - 07/2007 - © Oerlikon Leybold Vacuum
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-C
Pump’s oil Exhaust filters are clogged or damaged. Replace the filters. 5.4-D
consumption too Nozzle of float valve is clogged. Check the valve, clean the nozzle. 5.4-I
high, oil mist at Oil level is too high. Drain the excess oil. 5.4-C
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-C
excessively noisy. (oil is no longer visible).
Oil filter is clogged. Change the oil and filter. 5.4-C
Large vacuum leak in system. Repair vacuum leak. 5.4-L
Power transmission by V-belts is impaired. Tighten or replace the V-belts. 5.4-M
* Reference section : This coluum refers to the section in the Operating Instructions that contains the applicable repair information.
Never mount used seals. Always mount new seals.
Troubleshooting