REAR SUSPENSION 4C-43
Adjust bearings and complete the installation as
previously described under
"Wheel Bearing Ad
justment."
7.
Install axle shafts as directed in "R E A R
A X L E S " (SEC. 4A).
CLEANING, INSPECTION,
A N D REPAIR
C L E A N IN G
1. Immerse bearing assemblies in suitable
cleaning solvent. Q e a n bearings with a stiff brush
if necessary to remove old lubricant. Blow bear
ings dry with compressed air, directing air stream
across bearings. Do not spin bearings while blow
ing them dry.
2. Thoroughly clean all lubricant out of inside
of hub and wipe dry. Make sure all particles of old
gasket are removed from outer end of hub, and
that all sealing compound is cleaned out of oil seal
bore in inner end of hub.
3. Clean lubricant off axle housing tube.
4. W ash small parts such as nuts, sleeves,
and nut locks in cleaning solvent and wipe dry.
INSPECTION
1. Inspect bearings for excessive wear, chip
ped edges, or other damage. Slowly roll rollers
around cone to detect any flat or rough spots. If
either the cone and roller assembly or the cup of
the roller bearings are damaged, the complete
bearing assembly must be replaced.
2. Examine bearing cups which are still in
stalled in hub. If cups are pitted or cracked, they
must be replaced as directed later under "Repair."
3. Examine oil seal sleeve (when used) on
which the hub inner oil seal lip wipes for evidence
of wear or roughness. If any damage is evident,
sleeve must be replaced. Oil seal sleeves are re
placed as directed later under "Repair."
4. Inspect axle shaft flange studs for damaged
threads or bent condition. Replace studs as neces
sary.
5. Examine brake drums for scoring or other
damage. Non-demountable brake drums can be re
finished while mounted on hubs. If necessary to
replace brake drum refer to "Repair" later in this
section.
6 . Examine wheel bolts or studs and rim
clamp studs for damaged threads and replace, if
necessary, as directed later under "Repair."
7. Discard old oil seals and obtain new oil
seals to be used at assembly.
REPAIR
Bearing Cup Replacement
1.
Bearing cups are removed by using a mild
steel rod through opposite end of hub and driving
against inner edge of bearing cup. Alternately drive
on opposite sides of cup to avoid cocking cup and
damaging inside of hub.
2.
To install new cups, position cup in hub
and drive into place, using a mild steel rod against
outer edge of cup. Alternately drive against oppo
site sides to assure driving cup in squarely. Cups
must seat firmly against shoulder in hub.
Inner Oil Seal Sleeve Replacement
1. To remove oil seal sleeve, tap sleeve
around entire circumference with hammer to
stretch the metal; then use a blunt chisel to cut
into the sleeve inner flange. This will loosen the
sleeve sufficiently to permit removal.
N O T E : Be careful not to damage axle tube
when chiseling on sleeve.
2. Slide new sleeve over axle housing tube;
then using axle oil seal sleeve driver set J-3822-02,
drive sleeve into place. Use care not to damage
surface on sleeve contacted by inner oil seal.
Brake D rum Replacement
1. Remove bolts and lock nuts, or studs and
nuts attaching brake drum to hub.
2. Remove brake drum and oil shield or de
flector (if used) from hub.
3. Apply Permatex between oil shield or de
flector (if used) and brake drum.
4. Position brake drum and oil shield or de
flector on hub, aligning all drain holes.
5. Install bolts and lock nuts or studs and nuts
attaching brake drum to hub. Tighten attaching parts
securely.
Wheel Bolt Replacement
Wheel bolts are serrated and pressed into hub
flange. To replace bolts, press bolts out of hub
flange. Press new bolts into place, making sure
they are a tight fit. If all bolts are removed, be
sure oil shield or deflector (when used) is in place
under bolt heads before installing new bolts.
Rim Clamp Stud Replacement
Rim clamp studs can be removed and replaced
by using a conventional stud remover and replacer
tool. When installing new studs, make sure studs
are firmly bottomed in tapped holes and that
threads are not damaged during installation.
Outer Oil Seal Wiper Sleeve Replacement
The outer oil seal wiper sleeve is pressed on
outer end of axle housing tube (C, fig. 2, and C,
fig. 3). If the sealing surface of a wiper sleeve is
damaged, install a new sleeve. Make sure that
wiper seats squarely and that sealing surface on
sleeve is not damaged in any way.
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK SH O P M A N U A L
Содержание 70 1969 Series
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Страница 403: ...TROUBLE ANALYSIS CHART ENGINE ELECTRICAL 6Y 32 CHEVROLET SERIES 70 80 HEAVY DUTY TRUCK SHOP MANUAL...
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