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Case Cover Components: Inspection

  1. Inspect 3-4 accumulator piston cylinder for porosity, scored pin or nicked or grooved piston sleeve. Inspect piston pin for scoring and free movement in piston bore. Inspect springs for distorted or broken coils. Inspect piston cylinder for porosity or cracks. Inspect for rough or scored seal surface, or cut seal. Inspect check ball, spring and bore plug. See Figure.
  2. DO NOT remove blow-off check balls unless damaged. Inspect manual valve, link and spring link for damage. Check manual valve for binding or looseness in case cover. Check case cover plugs and orifice cup plug. Replace plugs if loose, plugged or missing.
  3. Inspect shaft bearing for damage. DO NOT remove bearing unless bearing is damaged. Inspect oil seal for missing garter spring or for cut lip seal.
  4. Inspect case cover for porosity, interconnected fluid passages, cracks or rough machined surfaces.
  5. Inspect input speed sensor for damaged or missing magnet, damaged housing, bent or missing electrical terminals, or damaged speed sensor clip.
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