FRONT AND REAR AXLE DRIVE PINION AND BEARINGS MAINTENANCE
CLEANING AND INSPECTION
l Dry cleaning solvent P-D-680 is toxic and flammable, Always wear
protective goggles and gloves and use only in a well-ventilated area.
Avoid contact with skin, eyes, and clothes and DO NOT breathe vapors.
DO NOT use near open flame or excessive heat. The solvents flash
point is 100°F-138°F (38°C-59°C). If you become dizzy while using
cleaning solvent, immediately get fresh air and medical help. If solvent
contacts eyes, immediately wash your eyes with water and get medical
Compressed air used for cleaning purposes should never exceed 30 psi
(207 kPa). Use only effective chip guarding and personnel protective
equipment (goggles/shield, gloves, etc.). Failure to follow this warning
may result in serious injury to personnel.
Clean and inspect front and rear bearing assemblies in accordance with TM 9-214.
Clean drive pinion, shim(s), and flange with dry cleaning solvent and dry with compressed air.
Clean bearing bores in housing with dry cleaning solvent to ensure that they are free of dirt or
other contamination, Remove any nicks or burrs found.
Clean pinion setting gage tool parts with dry cleaning solvent to ensure that pinion depth
measurements will be accurate.
If drive pinion is replaced, differential ring gear and ring gear bolts must
also be replaced. (See paragraph 6-6 or 6-16)
Inspect drive pinion, flange, and shim(s) for damage. Replace if damaged. If shim (s) is
undamaged, measure and save for installation.