Chevrolet 70 1969 Series, Руководство по ремонту

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REAR SUSPENSION 4B-25
Figure S — Removing or Installing Rubber
Type
Eye Bushing
N O T E : It may be necessary to drive radius
leaf pin out with a drift and hammer.
5. Release C-clamp to allow radius leaf to
drop below bracket, then using bushing remover
and installer (J-8459) replace spring eye bushing
as follows:
a. Place large O .D . of guide (J-8459-4) over
threaded end of shaft (J-8459-1), then lubricate
threads of shaft and insert threaded end of shaft
through radius leaf bushing from inner side.
b. Install sleeve (J-8459-5), stop (J-8459-2),
bearing, washer, and nut (J-8459-6), over threaded
end of shaft. Hold shaft from turning and use a
socket wrench with a long handle to turn nut and
draw the radius leaf bushing out.
c. Disassemble tool assembly (J-8459).
REPLACING RADIUS LEAF EYE
BRONZE BUSHING (WITH SPRING
ASSEMBLY IN VEHICLE)
R E M O V A L (Fig. 6)
1. Jack up vehicle so that forward, hooked end
of spring leaf touches rebound stop pin.
2. Remove spring eye pin clamp bolts.
3. Compress radius leaf with a heavy duty C-
elamp to relieve tension of radius leaf on eye pin,
then remove lubrication fitting from pin.
4. Install adapter (J-8118) into lubrication
fitting hole in end of radius leaf pin and use slide
hammer (J-2619) to withdraw radius leaf pin (fig.
4),
Figure 6 — Removing Spring Eye Bushing
IN S T A L L A T IO N (Fig. 7)
1. Install new radius leaf bushing using special
tool assembly (J-8459) as follows:
a. Assemble large O .D . of guide (J-8459-4)
over threaded end of shaft (J-8459-1); then lubri­
cate radius leaf spring eye, bushing, and shaft
threads.
b. Insert threaded end of shaft through inner
side of radius leaf spring eye. Install stop (J-8459
-2), bearing, washer, and nut (J-8459-6) over
threaded end of shaft.
c. While holding shaft to prevent turning,
tighten nut (J-8459-6) to draw bushing into the
radius leaf spring eye until bushing contacts stop
(J-8459-2).
d. Check radius leaf pin for slip fit in bushing
and ream bushing as necessary.
2. With frame raised so hooked spring leaf
just contacts rebound pin, use a heavy duty C-clamp
to draw radius leaf spring eye into alignment with
hole in bracket. Install the radius leaf pin with hole
for lubrication fitting facing out. Index notch on
end of radius leaf pin with clamp bolt notes in spring
bracket.
3. Install clamp bolts, nuts, and lockwashers,
then install lubrication fitting in pin and lubricate
with lubricant specified in L U B R IC A T IO N (SEC .O ).
4. Remove C-clamp and lower frame to place
weight on springs.
AUXILIARY SPRINGS
Some vehicles have auxiliary rear springs
which are necessary for certain types of operation.
W hen used, the auxiliary spring leaves are install­
ed above the regular rear spring assembly and
are held in place by long U-bolts. Brackets are
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK SH O P M A N U A L