Atlas Copco Oil-Sealed Rotary Vane Vacuum Pump GVS 100A

Warning: This procedure requires trained personnel with PPE!

Check recommendations on the motor supplier’s website

Motor condensate drain plug removed?

Sign off on the motor bearing replacement

If the pump is cold, run the pump with closed suction intake for 10 minutes to warm up the oil

Stop the pump and disconnect it from the mains

Open the oil drain valve and drain the oil completely into a container large enough to hold all the oil and tilt the pump slightly (if possible)

Close the oil drain valve and fill with new oil through the filler plug up to the middle of the oil sight glass. The oil level must not exceed the allowed maximum level

Wipe off eventual oil spills from the pump and/or the floor

Connect to mains again and verify correct rotation direction of the pump

Remove the intake filter element from the housing

Clean the intake filter element in one of the following ways

▪ Hand washing: Soak and agitate element in a warm water and mild detergent solution. Allow adequate time for the element to air dry (24 hours minimum). Do not install a damp element. This will cause higher initial pressure loss and rapid dirt loading

▪ Compressed air cleaning: Using approximately 7 bar(e) (100 psi(g) or 5.25 Torr(e)), direct air flow at inside of element towards pleats. Blow off the outside of the element directing the air flow down to avoid embedding dirt in the media. Blow off the inside again to remove any dirt that might be on the clean side of the element

▪ Vacuum cleaning: Point the vacuum cleaner to the dirty side (outside of element) only, using a vacuum of approximately 100 mbar(a) (75 Torr(a)). A crevice tool is recommended

▪ Hand cleaning: Hold element down with one hand and move other hand across the fins in a strumming motion. This action will dislodge most of the dirt

The element is ready to be reused;

Radiator, motor fan guard and pump must be kept clean

Cleaned using compressed air and a dry cloth?

Be careful not to damage the oil cooler (if applicable) by cleaning with compressed air or by exerting excessive pressure with the cloth

Do not use fluids or substances other than those indicated

NOTE! Check oil level and condition every 24 Hours

NOTE! Clean dirt trap at pump inlet every 1 Month

NOTE! Clean anti suck back valve at pump inlet every 1 Year

NOTE! Check the vanes. Replace them, if needed every 5000 Hours in Harsh condition

Sign off on the cleaning procedure

Unscrew the 4 or 6 screws of the filter cover and remove the filter cover together with the O‐ring

Remove the exhaust filter(s) from the filter cover

Clean the exhaust filter O-ring lodge and the filter cover O‐ring before reassembling the new parts

Install the new exhaust filter(s) following the instructions delivered with them

Sign off on the filter replacement