Leybold Rotary Vane Pump SV300 109 30

Ensure the pump is turned off and cooled down

Remove the fastening screws at the top of the pump-cylinder cover (7/51a-52a)

Loosen the pump foot (7/94a) at the bottom of the cover and take off the cover

Remove four screws and take off the intake flange (7/57) and gasket (7/55)

Remove the retaining ring from inside the intake flange (7/57)

5.2 Maintenance Intervals / 5.4-G Checking the Anti-Suckback Valve

Keep the anti-suckback valve clean to ensure proper operation of the pump

Is a dust filter installed upstream if exposed to large amounts of dust or dirt?

Remove the fastening screws at the top of the pump-cylinder cover (7/51a-52a)

Loosen the pump foot (7/94a) at the bottom of the cover and take off the cover

Remove four screws and take off the intake flange (7/57) and gasket (7/55)

5.2 Maintenance Intervals / 5.4-M Cooling coil cleaning

Ensure the oil cooler (7/66) is clean for efficient cooling

Clean the oil cooler with compressed air

5.2 Maintenance Intervals / 5.4-C Oil Change, Replacing the Oil Filter

Ensure all tools and safety equipment are ready

Ensure the pump is switched off but still at working temperature

Check for risk of oil polymerization and change oil immediately if necessary

Unscrew the oil-drain plug and let the used oil drain into a suitable container

Observe safety regulations while draining oil

Screw the oil-drain plug back in, briefly switch on the pump (max. 10s) and switch it off

Remove the oil-drain plug again and drain the remaining oil

5.2 Maintenance Intervals / 5.4-E Cleaning the Intake Filter

Ensure all required tools are available

Remove the fastening screws at the top of the pump-cylinder cover (7/51a-52a)

Loosen the pump foot (7/94a) at the bottom of the cover and take off the cover

Release the clips on the gas ballast filter

Clean the filter using a suitable solvent

Reassemble in the reverse sequence