Reverse Servo Assembly: Disassembly

Fig 1: Exploded View Of Reverse Servo Assembly With Torque Specification

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Item	Part Number	Description
1	7D321	Control valve spring retainer
2	7A270	Fluid pressure regulator valve spring
3	7D488	Reverse servo check valve
4	7D372	Reverse servo plate
5	7D466	Reverse servo accumulator spring
6	7D189	Reverse servo piston and seal
7	7423	Reverse servo piston O-ring
8	7D036	Reverse servo cover

Remove the control valve spring retainer.

Fig 2: Locating Control Valve Spring Retainer

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Remove the reverse servo spring and check valve.

Fig 3: Locating Reverse Servo Spring And Check Valve

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WARNING: Follow the specified procedure when using the tool to remove the servo cover. The servo and servo cover are under high spring force and can separate forcefully, which may result in serious personal injury.

NOTE: Tabs on servo plate mate with slots on cover every 120 degrees.

Remove the reverse servo plate by turning in either direction to release.
- Align the arrow on the servo plate with any slot on the cover.

Fig 4: Aligning Arrow On Servo Plate With Any Slot On Cover

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Remove the reverse servo spring.

Fig 5: Locating Reverse Servo Spring

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Remove the reverse servo piston and seal assembly.
- Inspect the seal for damage, install a new reverse servo piston if necessary.

Fig 6: Locating Reverse Servo Piston

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Remove and discard the reverse servo piston seal.

Fig 7: Locating Reverse Servo Piston Seal

Courtesy of FORD MOTOR CO.