Technical Description
Scheduled Maintenance Cards
5
Dual Stage Rotary Vane Pumps User Manual/ 87-900-937-01(L) 99/140
NOTE
You are advised to empty the pump before it cools down completely so that the
oil flows out more easily.
NOTE
The pump contains up to 1 liter of oil - make sure the tank you use for the waste
oil can hold this amount.
8. Open the oil drain plug (79) slowly; let the oil flow out by opening
the fill plug (78) located at the top of the pump. In the meantime,
clean the inside of the drain plug (magnetic plug).
9. After closing the drainage hole with its plug, make the pump
perform a number of turns, giving it a brief current pulse, so as to
let residual oil in the pump chambers flow out. Then drain off the
residual oil again.
10. After all the oil has been drained, close the drain plug tight; take
the tank of waste oil away and clean thoroughly, using rags of
cotton or other suitable material to dry.
11. Clean thoroughly the pourer lip of the new oil tin; pour the oil
slowly into the pump through the filler plug (78).
NOTE
Monitor through the sight glass at the front of the pump that you are not
exceeding the maximum oil level permitted.
CAUTION!
For disposal of waste oil, it is strictly necessary to respect the currently
applicable legislation on this matter.
12. To achieve a good vacuum level again, run the pump for one hour
with the gas ballast open.
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