Disassembly
1. Remove the relief valve by removing the snap ring, spring stop and spring.
2. Remove the male and female rotors by unscrewing the screws and removing the housing cover and O-ring.
Assembly
1. Install the male and female rotors.
Position the male and female rotors with the marks towards the housing cover.
Install the pump housing cover and secure it with the screws by tightening them.
2. Install the relief valve in the reverse order of removal.