28-16. REAR SERVO REPAIR (1995)
General mechanics tool kit:
automotive (Appendix B, Item 1)
Transmission fluid (Appendix C, Item 37)
Transmission disassembled into subassemblies
This task covers:
Work area should be well-ventilated, clean, and free from blowing
dirt and dust.
Remove retainer clip (1) from pin (8) in servo piston (10).
Remove accumulator piston (3), washer (5), servo spring (6), and spring retainer (7) from pin (8).
Clean all parts in accordance with para. 2-14.
Inspect pistons (3) and (10) for cracks, porosity, and damaged seal grooves. Remove minor burrs
and scoring. Replace if damaged.
Inspect servo spring (6) for breaks and distortion. Replace if damaged.
Inspect pin (8) for cracks, burrs, bends, and chipped or damaged retainer groove. Replace if
If replacing any seal, coat seal with transmission fluid (Dexron® III).
Inspect outer oil seal (9) for nicks, cuts, or damage. Replace seal (9) if nicked, cut, or damaged.
Inspect inner seal (2) and piston seal (4) for nicks, cuts, or damage. Replace inner seal (2) and
piston seal (4) if nicked, cut, or damaged.
Install spring retainer (7), servo spring (6), washer (5), pin (8), and accumulator piston (3) on servo
piston (10) with clip (1).