Atlas Copco Oil-Sealed Rotary Vane Vacuum Pump GVS 300A

Remove the screws of the exhaust plate using an 8 mm (0.31 inch) allen key

Lift the 3 exhaust filters from the W shaped metal sheet holder and remove them from the oil casing

Ensure the new exhaust filters have the O‐ring (opposite side of the overpressure valve) and grease them using our vacuum grease

Replace the O-ring of the exhaust plate

Insert new exhaust filters. They are guided in the oil casing correct position

Ensure the compression springs are behind the W shaped metal sheet holder

Plug the exhaust plate on the W shaped metal sheet holder with the 2 location pins and screw the exhaust plate on the oil casing using an 8 mm (0.31 inch) allen key

Sign off on the filter 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

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 and maintenance

Apply a thin film of oil on the gasket of the new oil filter

Clean carefully the contact surface of the gasket on the tank

Sign off on the oil filter change

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