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Maintenance
A366-04-880 Issue A
5.6 Replace the gas-ballast filter
Figure 6 - Remove and replace gas-ballast filter-elements
You must replace the gas-ballast filter-elements every time you change the oil in the pump (see Figure 6).
1. Isolate the pump from your electrical supply.
2. Drain the pump oil (see Section 5.4).
3. Unscrew and remove the four retaining screws (4) securing the gas-ballast adjustor-knob bearing-plate (2).
4. Withdraw the adjustor-knob bearing-plate from the pump end-plate (1).
5. Replace the felt filter-elements (6). There are two for E2M175/275 pumps. Clean the assembly before re-fitting
new filter-elements by washing in a suitable cleaning solution. Allow the assembly to dry.
6. Fit the filter-elements. Replace the assembly and secure with the four retaining screws (4).
7. Reconnect the electrical supply to your pump.
1. Pump end-plate
2. Gas-ballast adjustor-knob bearing-plate
3. Gas-ballast inlets
4. Retaining screws
5. Gas-ballast control
6. Gas-ballast filter-elements
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