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Technical Description
Scheduled Maintenance Cards
90/140 Dual Stage Rotary Vane Pumps User Manual/ 87-900-937-01(L)
WARNING!
Machine safety: disconnect all power lines. Hang the card “MACHINE
UNDERGOING MAINTENANCE - DO NOT POWER ON” from the main breaker
switch. When finished, remove the safety warning.
WARNING!
If you have to perform maintenance on the pump after a considerable time in
operation, leave it to cool as temperature of the outer surface may be in
excess of 60 °C.
1. Remove the filter (26) from the inlet flange (28).
2. Clean the filter using an aqueous solution and dry with hot air.
3. Put the filter back in place.
CAUTION!
The filter element is designed to prevent solid particles in the air from entering
the inside of the pump and if it is not working properly, serious damage could be
caused the pump’s inner parts. In such cases, it may be worthwhile installing a
large surface area filter in the pump's suction line to improve effectiveness and
reduce maintenance frequency.
If the pump sucks in gases and vapors that contain large quantities of solid
particles, the filter must be checked and cleaned more often than indicated here.
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