JAVAC BULLDOG A2L Notice D'utilisation page 9

8.0 SHUT DOWN PROCEDURE
8.1 CLOSE the manifold valve between the pump and the system.
8.2 "OPEN" gas ballast valve for a few minutes before shut down. This allows the pump to purge
condensable vapors.
8.3 Turn power switch OFF.
8.4 If necessary, drain oil while the pump is warm.
9.0 MAINTENANCE
DISCONNECT BULLDOG A2L / DV FROM POWER SUPPLY BEFORE CARRYING OUT ANY
MAINTENANCE. THE OIL MUST BE CHANGED WHEN CONTAMINATED OR AT 20 HOUR
INTERVALS.
9.1 EVACUATION of most used systems results in some contamination of the oil, causing deposits
of sludge containing water and acids. These substances will corrode your pump. Changing the oil will
remove damaging substances and will enhance the life of the vacuum pump.
9.1.1 Poor vacuum reading or a grey or milky appearance usually indicates oil contamination. If the
vacuum pump is pumping condensable vapors, it may be necessary to change the oil after each
process so that the pump does not stand idle with contaminated oil.
9.1.2 To change oil REMOVE the Oil Drain plug and DRAIN OIL into a suitable receptacle, this
process is easier if the vacuum pump is tilted slightly.
9.1.3 Turn power switch ON momentarily with the inlet port open, thus removing any residual oil.
9.1.4 REPLACE the Oil Drain plug when the flow of oil has stopped.
9.1.5 REMOVE Oil Fill cap and FILL the oil reservoir with NEW JAVAC approved low viscosity oil up
to the center of the sight glass. The oil level will rise when the pump warms up and is operating under
vacuum conditions. The oil level should be checked later and adjusted as required.
9.1.6 REPLACE Oil Fill cap, then turn power switch ON and check for any oil leakage.
9.1.7 DISPOSE of waste oil in accordance with local regulations.
NOTE: OIL UNDERNEATH THE HOUSING COULD BE CAUSED BY CARELESS FILLING AND
SPILL OR FROM GAS BALLAST VALVE. THIS WILL NOT BE COVERED BY WARRANTY (SEE 8.0
TROUBLE SHOOTING UNDER OIL LEAKING).
9.2 SERVICING EXHAUST DEMISTER
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