Oerlikon 10926, Operating Instructions Manual

Page: 28 / 44

28 GAET02307_002_10 - 06/2008 - © Œrlikon Leybold Vacuum
C. Oil Change, Replacing the Oil Filter
Tool required :
oil filter key (710 73 532)
Always change the oil when the pump is switched off but still at working
temperature.
If there is a risk of the oil being polymerized by the connected process,
change the oil immediately after operation of the pump.
Pump in operation is hot and some surfaces could reach a temperature higher
than 80 °C (176 °F).
There is a risk of burn by touching.
Unscrew the oil-drain plug (6/5) and let the used oil drain into a suitable
container.
Observe the safety regulations!
When the flow of oil slows down, screw the oildrain plug back in, briefly
switch on the pump (max. 10s) and switch if off.
Remove the oildrain plug again and drain the remaining oil.
Unscrew the oil filter. Take a new oil filter, moisten its gasket with oil and
screw it in manually.
Unscrew the oil-fill plug and fill the pump should be flushed by filling it with
fresh oil up to the bottom edge of the oil-level glass, run it for a short time
and then change the oil again.
Use suitable oil only (see point 1.8).
Depending on the process involved, dangerous substances may escape
from the pump and oil. Take the appropriate precautions.
Observe the safety regulations!
Never mount used seals; always mount new seals.
When disposing of used oil please observe the relevant environmental
regulations !
D. Replacing the Exhaust Filters and Checking the Pressure
Relief Valve
When the exhaust filter elements are clogged, the valves open and the filters
are bypassed. Oil mist at the exhaust, and/or high oil consumption are signs
that the exhaust filters are clogged.
The exhaust filters must be replaced more frequently if subject to increased
oil cracking products at high operating temperatures and/or aggressive
media.
Remove the exhaust flange (6/2) with gasket (6/3). Unscrew the lock nut
(6/31) and remove spring between its both washers : take out the exhaust
filter element(s) (6/29).
Maintenance
Caution
Warning
Note
Warning