Leybold Vacuum Pump RUVAC WAU 151 US

5.4 Cleaning the Fan Cowl and the Cooling Fins

Inspect the fan cowl and cooling fins

Ensure all safety precautions from Section 5.1 are followed

Remove the dirt trap from the intake flange

Rinse the dirt trap using a suitable solvent

Thoroughly dry the dirt trap with compressed air

Replace the dirt trap if it is damaged

5.6 Cleaning the Pumping Chamber

Observe all safety information provided in Section 5.1

Remove the two connecting lines

Blow out contaminants with dry compressed air or flush out with a suitable solvent

Remove contaminants with a wire brush, metallic sponge, or scraper if necessary

Turn the impellers by hand during cleaning

Ensure loosened deposits do not remain in the pump

Check the pump by slowly turning the impellers by hand

Check the oil level in the oil level glass

Check the condition of the oil in the oil level glass

Check the oil level in the oiler

Check the condition of the oil in the oiler

Is the oil light-brown in color?

Is the oil level correct according to Section 5.2 and 5.3?

Check the oil level at vertical flow when the pump is not running

5.7 Cleaning the Valve of the Pressure Balance Line

Ensure all safety information from Section 5.1 is observed

Remove the screws and take off the cover (12/1) with O-ring (12/2)

Remove the valve disk (12/6) with O-rings (12/5) and (12/7)

If damaged, pull out the bushing (12/3) from the valve disk and replace it

Clean all parts or replace them if necessary

Reassemble in the reverse sequence