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412—STEERING
CHRYSLER SERVICE MANUAL
PISTON ASSEMBLY
VALVE ASSEMBLY
5 3 x 8 1 9
Fig. 31—Removing Valve Assembly from Piston
Remove the two backup (steel) and "D" type
(neoprene) piston rings from piston, as shown
in Figure 30. Part of the 1955 production does
not use steel rings. A new and wider type rubber
ring is used instead.
Using snap ring pliers, remove lower piston
rod snap ring and slide lower piston rod from
piston.
Using care not to bend the valve piston rod,
slide valve assembly from piston assembly, as
shown in Figure 31. Using a
l
A inch punch,
drive piston pin into upper piston rod, as shown
in Figure 32. Using snap ring pliers, remove
upper piston rod snap ring. Note the position
and construction of snap ring.
Remove upper piston rod from piston, as
shown in Figure 33. Using a wire hook, remove
piston pin and "0" ring from piston rod, as
PISTON PIN HOLES
53x821
Fig. 33—Removing Upper Piston Rod
shown in Figure 34. Make sure the oil passage
is open. Inspect the sealing surface on piston
rod for being scored. Remove the two small
valve rod "O" rings from the bore of the upper
piston rod (one in each end). Remove the large
upper piston rod "O" ring.
Remove lower piston rod "0" ring. Inspect
rack teeth and sealing surfaces on lower piston
rod.
g. Removal of Relief Valve Assembly
Thread a V
4
inch 28NF bolt into threads pro-
vided in plug (Fig. 35). Clamp bolt head in a
vise and, by pulling on lower piston rod, plug
can be removed. Should end plug be seized in
rod, a fiber hammer may be used to tap on retain-
ing flange of lower piston rod. Inspect piston
for nicks and burrs. Make sure all oil passages
are open and free from dirt.
5 3 * M O
Fig. 32—Removing Upper Piston Rod Pin
UPPER PISTON ROD
PISTON PIN ASSEMBLY
WIRE HOOK
5 3 x 8 2 2
Fig. 34—Removing Piston Pin from Upper
Piston Rod
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