Inspection of Control Valve Assembly Components

1. Inspect the valve body casting for:

^ Cracks

^ Porosity

^ Damaged machined surfaces

^ Nicks or burrs in valve bores

^ Flatness of valve body to case mating surface (using a straight edge or by inspecting the gaskets for uniform compression)

2. Inspect valves for:

^ Burrs

^ Nicks

^ Scratches

^ Scoring

3. Inspect valve bushings for:

^ Porosity

^ Burrs

^ Nicks

^ Scratches

^ Scoring

4. Inspect springs for:

^ Damaged or distorted coils