1
2
3
4
5
Fig. 14:
Remove/fit rotary vane vacuum pump cap
1 Allen head screw (2×)
4
Pumping system
2 Cap
5
Stand
3 O-ring
Remove the cap
1. Drain the operating fluid.
2. Unscrew both Allen head screws from the cap.
3. Remove the cap from the stand in axial direction.
– Take care with the O-ring between cap and stand.
4. Collect any leaking operating fluid.
5. Dispose of operating fluid according to applicable regulations.
Cleaning the pumping system and cap
1. Clean the pumping system from the outside without cleaning agent.
2. Clean the cap from the inside without cleaning agent.
Install the cap
1. Insert the O-ring in the groove in the cap.
2. Install cap on stand.
3. Tighten both Allen head screws.
– Tightening torque:
6.0 Nm
.
4. Screw in the operating fluid drain screw.
– Be careful with the O-ring.
– Tightening torque:
6.0 Nm
5. Fill with operating fluid and check the fill level.
6. Screw in the operating fluid filler screw.
– Be careful with the O-ring.
– Tightening torque:
0.3 Nm
7.5 Cleaning the gas ballast valve
The gas ballast valve is contaminated if the vacuum pump takes in ambient air containing dust.
Maintenance
39/60
