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19-24
STEERING
nut on the gear shaft and tighten the tool nut until the
shoulder of the tool adapter contacts the gear hous-
ing.
(7)
Remove the tool nut and adapter and install the
seal back-up washer and oil seal snap ring with the
sharp edge out.
(8) Position the grease retainer in the housing
bore; place tool adapter SP-3828 with short step of
lip against the seal (Fig. 24). Install tool nut on the
gear shaft and tighten the tool nut until the shoulder
of the tool adapter contacts the gear housing.
(9) Place the steering gear and front wheels in the
straight ahead position and install the steering gear
arm and nut.
(10) Tighten the steering gear arm nut to
120
foot-
pounds.
WORM SHAFT OIL SEAL REPLACEMENT
The worm shaft oil seal replacement requires
re-
moval of the steering gear assembly from the vehicle.
Refer to "Gear Removal."
(1) Remove the oil seal with Tool C-3638
(Fig.
25).
(2) Drive the new oil seal in place (lip of seal to-
ward housing head) with Tool C-3650 (Fig. 26).
POWER STEERING PUMP
Description
The slipper type power steering pump is a belt-
driven constant displacement pump.
In operation (Fig.
1)
the spring-loaded slippers in
the pump rotor are in contact with the eccentric,
inside diameter of the housing. As the rotor revolves
the slippers forces the oil from the inlet side of the
pump to the flow control valve. Orifices permit a flow
of approximately two gallons per minute to the gear
before the valve moves to the left to allow the ex-
cess to flow back to the inlet side of the pump. Maxi-
mum pressure in the system is limited by the pressure
relief valve. The valve opens into the reservoir when
the pressure exceeds the maximum pressure speci-
fied.
RELIEF VALVE
RETAINER RING 12)
FLOW CONTROL
DISCHARGE FERRU
VALVE
63x664
Fig. 1-Power
Steering Pump fSchematic1
i.96
Cu. In. Displacement Shown1
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