Cadillac 60 Series 1963 Shop Manual page 77

5-18
POWER STEERING
Fig. 5-30 Installing Valve Rings
Assembly
1. If new valve body ring back-up O-ring seals
are necessary, lubricate them with power steering
fluid. Assemble in ring grooves on valve body.
Do not allow seals to become twisted. If new valve
rings are necessary, lubricate them with power
steering fluid and assemble valve rings in ring
grooves over back-up O-ring seals by carefully
slipping rings over valve body, Fig. 5-30. Rings
may appear to be loose in grooves, but the heat
of the oil after assembly will cause them to
tighten.
2. Lubricate new valve spool dampener O-ring
seal with power steering fluid and install seal in
valve spool groove.
3. Assemble stub shaft in valve body, aligning
groove in valve cap with pin in valve body, Fig.
5-31. Tap lightly on cap with a plastic or rawhide
mallet until cap is against shoulder in valve body
with valve body pin in cap groove. Hold these
parts together during the rest of the assembly.
4. Lubricate valve spool with power steering
fluid and slide spool over stub shaft with notch
toward valve body. Align notch with spool drive
Slot To Fit Onto
Pin In Valve Housing
pin in stub shaft and carefully engage spool in
valve body bore.
CAUTION: Because clearance between spool
and valve body is very small, extreme care
must be taken when assembling these parts.
Push spool evenly and slowly with a slight
twisting motion until it reaches drive pin. Ro-
tate spool slowly with pressure until notch
engages pin. Before pushing spool completely
in, make sure dampener O-ring seal is evenly
distributed in spool groove. Slowly push spool
in completely, being careful not to cut or pinch
O-ring seal by inserting spool beyond its nor-
mal position.
5. Slide spool spring over stub shaft and work
spool spring down, using a small screwdriver,
until spring is seated in stub shaft groove.
6. Lubricate new cap-to-worm O-ring seal with
power steering fluid and install in valve body.
NOTE: Do not install upper thrust bearing
assembly on valve assembly at this time.
d. Pitman Gear Shaft and Side Cover
Inspection
1. Inspect pitman shaft bearing surface in side
cover for excessive wear or scoring. If badly
worn or scored, replace side cover.
2. Visually inspect pitman shaft sector teeth
and bearing and seal surface. If abnormally worn,
pitted, or scored, replace pitman shaft gear.
Torque Wrench J-7754
7 32" Allen
Socket
Fig. 5-31 Installing Stub Shaft in Valve Body Fig. 5-32 Checking Pitman Shaft Adjuster Screw