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How to use the cartridge kit
A653-01-840 Issue F
3
How to use the cartridge kit
which show exploded views of the RV pump and use the following procedure to install the
components of the kit. Where necessary, refer to the RV pump instruction manual.
1. Switch off the RV pump, disconnect it from the electrical supply and allow the pump to cool.
2. Drain the oil from the pump. Undo and remove the bolts (327) which secure the oil-box (305) and remove the
oil-box from the pump. Remove any debris from the inside of the oil-box, then clean all surfaces of the oil-box
with a suitable cleaning solution.
3. Dismantle the pump; note that you do not need to dismantle the cartridge. Use a suitable cleaning solution to
clean all the surfaces of the components that you will reuse.
4. If the pump has a detachable stainless steel inlet-flange (instead of the integral top-plate (208)), remove the
inlet-flange and replace the O-ring (005) with the O-ring supplied.
5. If the end-plate (107) on the old cartridge has a vent-valve:
z
Remove the end-plate from the old cartridge
z
Fit the old end-plate (107) to the new cartridge.
6. Use the components supplied in the cartridge kit to replace the corresponding components in the pump. Ensure
that the components are clean before you fit them. Before you fit fluoroelastomer components, wipe them with
a clean lint-free cloth and lightly lubricate them with the oil you use in your pump.
7. Remove and inspect the restrictor (226). If necessary, use a suitable cleaning solution to clean the restrictor
orifice.
8. Remove and inspect the filter (if fitted) from the air bleed assembly (201). If necessary, use a suitable cleaning
solution to clean the orifice and the filter.
9. Reassemble the pump. When you refit the side panels (408, 412), ensure that you do not over-tighten the
securing screws. If the side panels are damaged, you must replace them before you operate the pump.
10. Use the oil-box printed gasket (314) supplied in the kit and refit the oil-box (305) to the pump. Fill the pump
with the correct quantity of new oil.
11. Fit an oil mist filter to the pump-outlet and connect the outlet of the oil mist filter to a suitable
exhaust-extraction system.
12. Connect the pump to the electrical supply, then look at the oil-level in the sight-glass and switch on the pump;
check that the oil-level drops by 3 to 5 mm when you switch on the pump. If the oil-level does not drop, refer to
the pump instruction manual.
13. Refer to the RV pump instruction manual for normal operation of the pump.
14. Dispose of the old components and used oil safely in accordance with all local and national safety and
environmental requirements.
