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Safety guidelines
∗After factory run-in and testing the pu p is drained of oil to prevent spillages during
ship ent - Do not operate the pu p until filled with oil.
∗Do not use the pu p to evacuate co bustible, explosive or poisonous gases.
∗Do not use the pu p to evacuate gases that contain particles, dust or stea .
∗The te perature of the evacuated gas should not exceed 80°C.
∗Do not use the pu p to transfer liquid or to co press gases.
∗Do not block the air outlet when the pu p is operating.
∗Do not operate the pu p in the rain or any other wet environ ent.
Oil filling
Ensure that the correct a ount of oil is used to fill the pu p (see specifications). Only ITE
vacuu pu p oil should be used as any other oil type ay affect perfor ance and could da age
your pu p.
1. Re ove the exhaust shroud fro top front of pu p and the cap fro the intake fitting.
2. Pour 50 l of oil into exhaust hole and then start the pu p for a few seconds with the intake
sealed.
3. Stop the pu p and continue filling until the oil level co es 3/4 of the way up the oil level
window located on the front of the pu p. DO NOT OVERFILL.
4. Please note that the oil level should be checked only when the pu p is running. When the
pu p is stopped the oil level of a correctly filled pu p will fall below the 1/2 way level in the
sight glass.
Oil change
Conta inants pulled fro a syste can affect vacuu pu p perfor ance and seriously da age
internal pu p parts so therefore frequent oil changes are reco ended. The pu p should be hot
when draining oil and if the pu p is not to be used for a long period of ti e always drain and refill
the pu p with fresh oil before using.
1. Re ove the drain plug at the botto of the front end of the pu p in order to drain the used
oil into a suitable receptacle with pu p running.
2. Refitt the drain plug and refill the pu p following the OIL FILLING procedure above.
Gas ballast
The gas ballast valve is used to help prevent condensation of conta inant vapors within the pu p.
Opening the valve ste (knurled rod located on top of pu p) allows relatively dry air fro the
at osphere to enter the pu p.
This air co bines with the wet vapor passing through the pu p and helps prevent the oisture
fro condensing and ixing with the vacuu pu p oil. To use the gas ballast valve slightly open
the valve during the first few inutes of syste pull-down and then close fully to allow the pu p
to achieve ulti ate vacuu .