Control Valve Lower Body

Control Valve Lower Body:

COMPONENTS


DISASSEMBLY



- Remove valves at retainer plate.

For removal procedures, refer to "DISASSEMBLY", "Control Valve Upper Body".

INSPECTION

Valve springs



- Check each valve spring for damage or deformation. Also measure free length and outer diameter.

Inspection standard: Refer to Mechanical Specifications. Specifications

- Replace valve springs if deformed or fatigued.

Control valves
- Check sliding surfaces of control valves, sleeves and plugs for damage.


ASSEMBLY




- Install control valves.
For installation procedures, refer to "ASSEMBLY", "Control Valve Upper Body".

Retainer Plate:

- Install proper retainer plates.