Atlas Copco Oil-Sealed Rotary Vane Vacuum Pump GVS 630A

Radiator, motor fan guard and pump must be kept clean

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

Tools required: tubular box wrench 16 mm (0.62 inch)

Exhaust filter elements clogged?

If oil mist at the exhaust, and/or high oil consumption are signs that the exhaust filters are clogged

The exhaust filters must be replaced more often if subjected to increased oil cracking products at high operating temperatures and/or aggressive media

Exhaust deflector removed by unscrewing the bolt?

Both demister support units removed by unscrewing the nuts?

Exhaust filters removed individually?

Set the O-ring to 10 mm (0.39 inch) position

Place the tool on the centre of the longest V‐belt and mark the belt

Push the tool downward until you reach a 10 mm (0.39 inch) bending. The result of the measurement should be between 35 N and 58 N

Check the result of your measurement. Tighten the belt tightener to reach the table given value;

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;

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