Disassembly
1. Remove pump gears 22 and 23 from the pump housing.
2. Check radial seal 24 and replace if necessary.
3. Replace O-ring 25.
4. Lubricate the pump gears and install the pump in the pump housing. Insert the pump gear 22 with a chamfer (arrow) to the pump housing.
Assembly
Assembly is carried out in the reverse order of disassembly.