3
Safety guidelines
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After factory run-in and testing the pump is drained of oil to prevent spillages during
shipment - Do not operate the pump until filled with oil.
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Do not use the pump to evacuate combustible, explosive or poisonous gases.
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Do not use the pump to evacuate gases that contain particles, dust or steam.
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The temperature of the evacuated gas should not exceed 80°C.
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Do not use the pump to transfer liquid or to compress gases.
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Do not block the air outlet when the pump is operating.
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Do not operate the pump in the rain or any other wet environment
.
Oil filling
Ensure that the correct amount of oil is used to fill the pump (see specifications). Only ITE
vacuum pump oil should be used as any other oil type may affect performance and could damage
your pump
.
1.
Remove the exhaust shroud from top front of pump and the cap from the intake fitting.
2.
Pour 50 ml of oil into exhaust hole and then start the pump for a few seconds with the intake
sealed.
3.
Stop the pump and continue filling until the oil level comes 3/4 of the way up the oil level
window located on the front of the pump. DO NOT OVERFILL.
4. Please note that the oil level should be checked only when the pump is running. When the
pump is stopped the oil level of a correctly filled pump will fall below the 1/2 way level in the
sight glass.
Oil change
Contaminants pulled from a system can affect vacuum pump performance and seriously damage
internal pump parts so therefore frequent oil changes are recommended. The pump should be hot
when draining oil and if the pump is not to be used for a long period of time always drain and refill
the pump with fresh oil before using.
1. Remove the drain plug at the bottom of the front end of the pump in order to drain the used
oil into a suitable receptacle with pump running.
2.
Refitt the drain plug and refill the pump following the OIL FILLING procedure above.
Gas ballast
The gas ballast valve is used to help prevent condensation of contaminant vapors within the pump.
Opening the valve stem (knurled rod located on top of pump) allows relatively dry air from the
atmosphere to enter the pump.
This air combines with the wet vapor passing through the pump and helps prevent the moisture
from condensing and mixing with the vacuum pump oil. To use the gas ballast valve slightly open
the valve during the first few minutes of system pull-down and then close fully to allow the pump
to achieve ultimate vacuum.
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