6-55. GEAR UNIT AND MAIN SHAFT ASSEMBLY - Continued
(21) Drill away staked front ends of center carrier
assembly (5) pinion pins (27) using a 15/16-
in. (23.8 mm) bit.
(22) Drill away staked ends of rear carrier
assembly (20) pinion pins (28) using a 1-
3/16-in. (30.2 mm) bit.
Front, center, and rear carrier
assemblies are disassembled the same
way. Disassembly of center carrier is
(23) Position center carrier assembly (5) with
drilled ends of pinion pins (27) upward in
(24) Press pinion pins (27) from center carrier
(25) Remove pinions (24), roller bearings (29),
steel thrust washers (30), and bronze thrust
washers (31) from center carrier assembly.
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).
All planetary gears in a carrier assembly are replaced as a set.
Inspect parts for damage. Replace damaged parts.
Measure thickness of thrust washers. Thickness must be no less than 0.091 in. (2.31 mm).