5-42. REAR TANDUM AXLE AND DIFFERENTIAL - Continued
Cleaning and Inspection.
Dry cleaning solvent P-D-680 is potentially dangerous.
Avoid repeated and prolonged breath- ing 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).
Compressed air used for cleaning purposes will not exceed
30 psi (207 kPa). Use only with effective chip guarding and
personal protective equipment, goggles, shield and gloves.
Clean ail metal parts in dry cleaning solvent (Item 3, Appendix E) and dry thoroughly with compressed
air (except bearings). Coat parts in a light film of engine oil (Item 20, Appendix E) and place on clean
Inspect tapered roller bearing cones (32, 19 and 29) for wear, damage to rollers and damage to cup
(35, 33 and 34) inner surface. Inspect bearing (35) for damage. Replace any worn or damaged
Inspect drive pinion (18) and ring gear sets for wear and damage (see para 4-9).
Drive pinion and ring gear are machined in matched pairs.
When replacing a gear the entire set must be replaced.
Inspect main differential assembly as follows (see para 4-9):