CHRYSLER SERVICE MANUAL STEERING—257
both belts are adjusted, or condition will still
exist.
Flow control valve stuck in open position. To
check, remove the high pressure hose at pump
fitting and insert a % inch clean blunt rod
against valve plunger. If plunger moves inward
%
6
to 14 inch, the plunger was stuck. To cor-
rect, remove flow control and relief valve as-
sembly and inspect for nicks, burrs, or foreign
matter. Small nicks or burrs may be removed
by using crocus cloth. When reinstalling valve
assembly, make sure it fits freely in bore of
pump cover. Recheck pump pressure after in-
stallation. If pump pressure does not increase
700 psi. as valve is closed, proceed as follows:
With cover removed from reservoir, start
engine and observe whether oil is flowing
through filter. If it does not, remove pump from
generator (it is not necessary to disconnect
hose) and inspect for broken coupling flange.
If either coupling flange is broken, disconnect
hose,
and remove pump and reservoir assembly
from vehicle. Disassemble pump and determine
cause of coupling flange breaking.
21.
REMOVAL AND INSTALLATION OF
POWER STEERING HYDRAULIC
PUMP ASSEMBLY
a. Removal
Disconnect pressure and return hoses from
pump assembly. Loss of oil will be noted when
hoses are removed. Keep both hose ends up to
prevent excessive loss of oil. Ends of hose
should be covered or capped to prevent the en-
trance of foreign matter.
Remove pump to generator mounting screws
and lockwashers. Remove pump and reservoir
assembly from generator. Remove rubber cou-
pling.
b.
Installation
Place rubber coupling in position in pump as-
sembly. Place pump and reservoir assembly in
level position on back of generator, and index
coupling carefully. Pump mounting brackets
have slotted holes to allow level positioning of
pump reservoir (Fig. 42). Install pump to gen-
erator mounting bolts, lockwashers, and wash-
er. Draw down evenly and tighten to 17 foot-
pounds torque. Connect pressure and return
hoses to pump and tighten. Refill reservoir.
22.
SERVICING THE HYDRAULIC PUMP
(FIG. 43)
a. Disassembly
Do not disassemble hydraulic pump in dirty
surroundings or on a dirty work bench. Use
clean paper on bench. After pump has been dis-
assembled place parts in suitable cleaning sol-
vent and protect them from dirt and chips. Re-
move cover on reservoir and remove filter.
Remove two reservoir to pump attaching
bolts and lockwashers, unscrew filter element
standpipe, and separate reservoir from pump.
There are four rubber "O" seal rings between
reservoir and pump body. Using holding Tool
C-3227, remove coupling locking screw, lock-
washers and coupling. The locking screw is a
special type for torquing purposes and should
not be replaced with any other type. Place
pump body in vise equipped with protective
jaws and remove five body to cover attaching
bolts.
Remove cover and "0" seal ring. Remove
outer pump rotor by inverting and tapping
pump body on wooden block. Remove pump
shaft and inner rotor from pump body. Remove
inner pump rotor from pump shaft by remov-
ing rear circular section snap ring and sliding
rotor and drive key off shaft.
To remove combination control and relief
valve in pump cover, remove 1% inch hexagon
spring retainer cap fitting and circular section
x699
Fig.
44—Disassembly
and
Assembly
of
Pressure Relief
and Flow Control Valve with Tool C-3229
MyMopar.com
To Next Page
Loading...
