TRUCK SERVICE MANUAL
Remove oil seal cage.
Remove sliding clutch and pull out shaft assembly (Fig.
Press bearings and wiper from shaft. If necessary,
remove shift shaft oil seal as well as oil seal located inside
CLEANING, INSPECTION AND REPAIR
Clean parts having gro,ln4d and polished surfaces, such
as gears, bearings and shafts, with solvent type cleaners such
as emulsion cleaners or petroleum solvents excluding
gasoline. Do not clean these parts in a hot solution tank or
with water and alkaline solutions such as sodium hydroxide,
orthosilicates or phosphates.
Exercise -care to avoid skin rashes, fire hazards and
inhalation of vapors when using solvent type cleaners.
Rough parts such as transfer case housings, accessory
housing and some brake parts may be cleaned in hot solution
tanks with mild alkali solutions providing these parts are not
ground or polished. Parts should remain in the tank long
enough to be thoroughly cleaned and heated through. This
will aid the evaporation of the cleaning solution and rinse
Parts cleaned in solution tanks or with alkali cleaners
should be thoroughly rinsed after cleaning to remove all traces
Completely assembled transfer cases may be steam
cleaned, on the outside only, to facilitate initial removal and
disassembly, providing all openings are closed. Breathers,
vented shift units and all other openings should be tightly
covered or closed to prevent the possibility of water entering
Parts should be thoroughly dried immediately after
cleaning. Use soft, clean, lintless absorbent paper towels or
wiping rags free of abrasive material such as lapping
compound, metal filings or contaminated oil. Bearings should
never be dried by spinning with compressed air.
It is impossible to overstress the importance of careful
and thorough inspection of transfer case parts prior to
reassembly. Thorough visual inspection for indications of
wear or stress and the replacement of such parts as are
necessary will eliminate costly and avoidable drive unit failure.
Inspect all bearings, cups and cones, including those not
removed from parts of the transfer case, and replace if rollers
or cups are worn, pitted or damaged in any way. Remove
parts needing replacement with a suitable puller or in a press
with sleeves. Avoid use of drifts and hammers. They may
easily mutilate or distort component parts.
Inspect spur gears and clutches for wear or damage.
Gears which are scored, pitted, ridged or worn should be
CTS-2048Q Page 8
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