Chevrolet 70 1969 Series, Руководство по ремонту

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REAR AXLE 4-23
clutch plate pins (7) (View A, fig. 10), then remove
pinions and pins.
5. Rem ove differential assem bly (6) from right support
case (4). Rem ove support case thrust washer (5),
(View B, fig. 10).
DIFFERENTIAL DISASSEMBLY
Key num bers in text refer to Figure 17.
1. M ark both halves of differential case distinctly with
prick punch (View C, fig. 10) to assure correct posi­
tioning at assembly.
2. C u t cap screw lock wire, then remove differential cap
screws (15).
3. Lift off right half of case, then remove side gear (18)
and thrust washer (17) (View A, fig. 11).
4. Remove spider (21) and gears from case, then remove
thrust washers (19) and pinion gears (20) from spider
(B, fig. 11).
5. Remove the left side gear (22) and thrust washer (17)
from left differential case (23).
6. Remove differential bearing cones (2) from support
case by striking inner races on alternate sides with a
pin punch through holes in case (View C, fig. 11).
C LE A N IN G , IN SPECTIO N , A N D REPAIR
C L E A N IN G IN SPEC TIO N
All com ponent parts of an axle should be thoroughly
cleaned in a cleaning fluid, using a stiff brush if necessary,
to remove dirt, old lubricant, or gasket material.
CLEANING BEARINGS
W henever available, the M agna-F lux M ethod should be
used on all steel parts, except ball and roller bearings.
This m ethod is especially suited for inspection of ground
or highly finished surfaces for w ear and cracks which oth­
erwise would not be visible to the naked eye.
Proper bearing cleaning is im portant. Bearings should
always be cleaned separately from other rear axle parts.
1. Soak all bearings in clean kerosene. Diesel fuel, gaso­
line, or cleaning solvent. Bearings should not be
cleaned in a hot solution tank.
2. Slush bearings in cleaning solution until all oil lubri­
cant is loosened. Hold bearing races so th at bearings
will not rotate; then brush bearings with soft bristled
brush until A L L dirt has been removed. Remove
loose particles of dirt by striking flat against a wood
block.
3. Rinse bearings in clean fluid. While holding races to
prevent rotation, blow dry with com pressed air. Do
not spin bearings while drying.
4. A fter bearings have been inspected as later described,
lubricate thoroughly with regular axle lubricant; then
w rap each bearing in clean cloth until ready to use.
CLEANING PARTS
Im m erse all parts in suitable cleaning fluid and clean
thoroughly. Use a stiff bristle brush as required to assure
removal of any accum ulation of old lubricant or foreign
deposits. Rem ove particles of gaskets which m ay adhere
to m ating surfaces of housing, carrier, covers, cages, re­
tainers, or flanges. Clean all lubricant passages or chan­
nels in pinion cage, carrier, caps, and retainers. M ake cer­
tain that interior of housing is thoroughly cleaned. Clean
vent plugs and breathers.
Sm all parts such as cap screws, bolts, studs, nuts, etc.,
should be cleaned thoroughly.
BEARINGS
R otate each bearing slowly, and at the sam e time ex
Figure 9— Removing Cups From Cage Wi.h Remover
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK SH O P M A N U A L