Case Cover Components Inspection
- Inspect the 3-4 accumulator piston (428) for the following conditions:
- Porosity
- A scored pin bore
- A nicked piston seal groove
- Inspect the 3-4 accumulator piston pin (426) for scoring and free movement in the 3-4 accumulator piston bore.
- Inspect the 3-4 accumulator outer spring (423) and inner spring (424) for distorted or broken coils.
- Inspect the 3-4 accumulator piston cylinder (421) for the following conditions:
- Porosity or cracks
- A rough or scored seal surface
- A cut seal (422)
- Inspect the TCC blow off ball valve (420B), the TCC blow off ball valve spring (418) and the TCC blow off ball valve bore plug (417).
- Inspect the ball valve bore plug (417).
- Inspect the cooler ball valve spring (407) - some models.
- Inspect the cooler ball valve (420C) - some models.
- Inspect the manual valve (404), the manual valve link (402) and the manual valve clip (403) for damage.
- Inspect the manual valve (404) for binding or looseness in the case cover assembly (401).
- Inspect the case cover bore plugs (411) and the orificed cup plug (412). Correct the following conditions:
- Plug is loose
- Plug is missing
- Orifice is plugged
- Inspect the drive shaft bearing assembly (431).
- Inspect the axle oil seal assembly (409) for a missing garter spring or for a cut lip seal.
- Inspect the case cover (401) for the following:
- Porosity
- Interconnected fluid passages
- Cracks or rough machined surfaces
- Inspect the input speed sensor assembly (440) for the following conditions:
- Damaged or missing magnet
- Damaged housing
- Bent or missing electrical terminals
- Damaged input speed sensor clip (441)
IMPORTANT:
Do not remove the blowoff valves unless the ball valves are damaged.
IMPORTANT:
Do not remove the drive shaft bearing (431) unless the bearing is damaged.