Atlas Copco Oil-Sealed Rotary Vane Vacuum Pump GVS 470A

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.

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

In normal operating conditions, the belt has a lifetime of 30000 hours. Wear characterizes by slip, abnormal wear or cracks. In case of wear, the correct alignment of the pulleys has to be checked. Tolerance ±1.3 mm

A dismounted belt has to be replaced with a new one

Stretch the V-belts with the V-belt tension meter;

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

Enter the result of your measurement

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

Sign off on the belt condition check