6-58. REAR COVER AND FIRST CLUTCH ASSEMBLY - Continued
Remove inner seal ring (20) and outer seal ring (21) from first clutch piston (16) and discard.
Position rear cover (1) flange side down. Use wooden blocks for support.
Remove governor support pin (22) from rear cover (1).
c. Cleaning and Inspection.
Dry cleaning solvent P-D-680 is potentially dangerous. Avoid repeated and
prolonged breathing of vapors and skin contact with the liquid. Do not use near
open flame, arcing equipment or other ignition sources. Always wear eye
protection and protective clothing. The flash point of P-D-680 is 100 to 138 deg. F
(38 to 59 deg. C).
Clean all metal parts with dry cleaning solvent (Item 3, Appendix E) and inspect for damage.
Replace damaged parts.
Inspect and replace piston release springs if any five springs do not meet the following load-height
(a) Length without load must be at least: 1.29 in. (32.77 mm).
(b) Length under load must be at least: 0.82 in. (20.83 mm) with load of 4.3 to 5.7 lb (1.9 to 2.6