5. Open valve on suspension charging kit to release
nitrogen from the suspension. Disconnect charg-
ing kit.
6. Disconnect lubrication lines. Disconnect pressure
sensor cable.
7. Position a fork lift under the suspension housing,
above the lower mounting pin. Secure suspen-
sion to fork lift.
The rear HYDRAIR
®
II suspension weighs approxi-
mately 2,400 pounds (1088 kg.). Be certain the
capacity of the lifting device used is sufficient for
lifting this load.
NOTE: The mounting arrangement for the top and
bottom pins is identical.
8. Remove pin retainer locknuts (3, Figure 3-3) and
capscrews (2) at upper and lower pins (1).
9. Install a puller and pull the lower mounting pin from
the bore in the rear axle housing. Remove both
spacers (4).
10. With the fork lift positioned under the suspension,
install a puller and remove upper mounting pin
from the bore in the truck frame. Remove pin and
spacers.
11. Clean the exterior of the suspension thoroughly
and move to a clean work area for disassembly.
FIGURE 3-3. SUSPENSION MOUNTING PIN
(Typical, Top and Bottom)
1. Pin
2. Retainer Capscrew
3. Locknut
4. Bearing Spacer
5. Retainer Ring
6. Bearing
7. Capscrew
8. Washer
9. Sleeve
H3-2 Rear Suspensions H03013