Control Valve Lower Body
DISASSEMBLY
- Remove valves at retainer plate.
INSPECTION
Valve Springs
- Check each valve spring for damage or deformation. Also measure free length and outer diameter.
Inspection standard:
- Replace valve springs if deformed or fatigued.
Control Valves
- Check sliding surfaces of control valves, sleeves and plugs for damage.
ASSEMBLY
- Install control valves.
Retainer Plate
- Install proper retainer plates.