Instruction manual

5.8 Change the gas-ballast air filter element
If you have not connected a nitrogen gas-ballast supply to the pump, use the following
procedure to replace the gas-ballast air filter element:
1. Refer to Figure 12. Turn the top-cap (1) clockwise (when viewed from the top-cap end of the
gas-ballast air filter) to release it from the filter body (4), then remove the top-cap.
2. Remove and dispose of the used filter element (3).
3. Fit the new filter element (3) into the filter body (4).
4. Refit the top-cap (1) to the filter body (4) and turn it anticlockwise until it clicks, to secure it to
the filter body: ensure that the inlet (2) on the top-cap does not point upwards, otherwise
debris, dust or liquids may enter the filter body.
26 DP180 Dry Vacuum Pump
Figure 12 - Exploded view of the gas-ballast air filter
1. Top-cap
2. Inlet
3. Filter element
4. Filter body