Section 16: SUSPENSION
PA1562
26
FIGURE 32: AIR SPRING AND SHOCK ABSORBER 16145
1. Compress air spring as necessary, then
aligning studs with their holes, position air
spring between both the lower and upper
supports. Thread the lower nuts and the
small upper nut a few turns.
2. Tighten and torque the lower stud nuts, and
then the upper nut to 20-25 lbf-ft (27–34
Nm).
3. Install elbow (if applicable), then connect air
line.
4. Connect the height control valve link.
5. Build up air pressure in system.
NOTE
To accelerate this operation, air reservoirs can
be filled from an exterior air supply connected
to the accessory tank fill valve or to the
emergency fill valve.
6. Check operation of bellows and with the
primary air system at normal operating
pressure (95 - 125 psi (655 - 860 kPa), coat
the air line connections and air spring
mounting areas with a water and soap
solution. Bubbles will indicate an air leak,
and none is permissible. Repair or replace
defective parts.
7. Remove the hydraulic floor jack from
underneath shock absorber bracket.
3.18 SHOCK ABSORBERS
The two front shock absorbers are double-acting
and telescopic type. Shock absorbers ensure a
smooth ride and enhance vehicle stability on the
road. Front shock absorbers have eye-type
mountings on the upper side and bayonet type
on lower side. Shock absorbers are non-
adjustable and non-repairable.
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