SPRINGS, SHOCK ABSORBERS
Lightly lubricate spring leaves with a thin coat of
graphite grease. Place spring leaves in proper
order and align center bolt hole with a long drift.
Compress spring leaves sufficiently for installing
center bolt and nut.
Place spring assembly in vise and compress
spring leaves fully.
PHYSICAL INJURY TO PERSONNEL. THE
USE OF SPECIAL HOLDING FIXTURES OR
LEAVES IN PLACE DURING ASSEMBLY IS
Align spring leves by tapping with a hammer and
position rebound clips on spring. If bolted type
clips are used, install spacers, bolts and nuts.
Tighten enough to hold leaves in alignment but
not enough to restrict free movement. If clinch
type clips are used, bend ends of clips down on
top leaf. Heat clips with torch to help avoid
Before reassembly, all shackle bolts, U-bolts, etc. should
be cleaned and lubricated.
While the actual installation procedures will vary with
each spring type, the pivot end of spring is usually
fastened to frame bracket first.Shackle end can then be
fastened by aligning shackle to other frame bracket.
When installing U-bolts for securing axles, do not final
tighten until springs have been placed under normal
load. See SPECIFICATIONS for U-bolt torque.
Spring failures may occur at the center bolt hole if U-
Shock absorbers are provided to control body sway, to
eliminate excessive tire wear, front wheel shimmy, and
spring breakage. They also improve the riding qualities
of the truck and are especially useful when the truck is
empty or only partly loaded.
The direct-acting type shock absorber (Figure 6),
construction and requires no periodic maintenance.
Shock absorbers of this type should be checked every
16,000 km (10,000 miles). Make sure they are
functioning satisfactorily, that bushings are not worn, and
that outer jacket has not been damaged by flying stones
or debris from the road. If a shock absorber is leaking,
fails to operate, or develops unusual noises, the
complete unit should be replaced. Direct acting shock
absorbers are nonrefillable and service is limited to unit
Figure 6 --- Direct Acting Shock Absorber
MOUNTING AND LINKAGE
Check for and correct loose, bent or broken shock
absorber mountings and linkage when servicing the
suspension system. Inspect all rubber bushings and
grommets to see that they effectively keep metal from
striking metal. Link or bushing wear can be checked by
twisting link with pliers or by prying link connection with
screwdriver or small pry bar. Outward appearance will
usually reveal excessive wear.
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