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Maintenance kits
A652-01-840 Issue P
3.3 How to use the blades kit
Refer to Figure 1 to 4 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. Dismantle the pump, clean the pump components and replace the pump components with the components
supplied in the clean and overhaul kit as described in Step 1 to 9 of Section 3.2.
2. Dismantle the cartridge (Figure 3): ensure that you take note of the orientation of the blades (116, 117) in the
cartridge.
3. Use a suitable cleaning solution to clean all the surfaces of the components in the blade kit and the surfaces of
the dismantled cartridge which you will reuse.
4. Replace the H.V. and L.V. blades in the cartridge (116, 117) with the new blades supplied in the blade kit; ensure
that you fit the blades in the correct orientation (as noted in Step 2).
5. Replace the oil-pump blade (115) with the new blade supplied in the blade kit and reassemble the cartridge.
6. Reassemble and commission the pump as described in Step 11 to 14 of Section 3.2.
7. Dispose of the old components and used oil safely in accordance with all local and national safety and
environmental requirements.
3.4 How to use the inlet-valve kit
Refer to Figure 1 to 4 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. Remove the side panels (408, 412). On the RV8 and RV12 pumps, remove the top-cover from the motor and
loosen the motor securing bolts (421).
3. Undo and remove the four screws which secure the top-plate (208). Remove the top-plate and the top-plate
printed gasket (216).
4. Use a suitable tool to firmly grip the rim of the valve cover (202-1), pull out the inlet-valve assembly (A) and
remove the spring (213).
5. Fit the new spring and inlet-valve assembly supplied in the kit.
6. Fit the new top-plate printed gasket (216) supplied in the kit, then fit the top-plate (208) and secure it with the
four screws removed in Step 3.
7. On the RV8 and RV12 pumps, tighten the motor bolts (421) and refit the top-cover on the motor. On all pumps,
refit the side panels (408, 412).
8. Dispose of the old components safely in accordance with all local and national safety and environmental
requirements.
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