Table of Contents
Advertisement
MAINTENANCE
Crusader
MC-8
[ ""' _ _:_l _' . _l_---=8:__ _ _ _ _ _
DA IE
December, 1973 ]
MANUAL
check for tight spots. If no tight spots exist, tighten
the lock nut tight.
CONTROL VALVE
REASSEMBLY
Before reassembling, be sure all parts have been
thoroughly cleaned. Light lubricating oil should be
applied to spool and O-rings.
Ass~mble O-Ring (40) o.n the spool. Assemble the
spool m the valve body. Ensure that the end with the
O-ring is toward the cleves end of the valve. When
assembling the spool in the body, a twisting motion
applied to the spool will be helpful.
Assemble into the body: Centering washer (41 ),
spnng (42), centering washer (41 ), O-Ring (43) and
centering washer (41 ). Assemble flexure rod (34) in
spool. Assemble washer (44) and nut (45) to flexure
rod and tighten the nut to 125-150 inch lbs. torque.
. If the bypass valve parts were removed, replace O-
nng on plug (33) before reassembling in body.
Assemble ball (3 7 ), spring (3 8 ), and plug (3 3) in the
body.
Assemble actuator lever (30) in actuator
housing (25) bushing making sure the stud end of the
lever seats in the groove of actuator (13) and position
the slot
rn
the other end of the lever so that the pin in
the clevis of the flexure rod will fit freely when
l.
Power Steering Gear Box
2. Gear Box Drain Plug
3. Control Valve
4. Hose - Control Valve to Power
Steering Cylinder - Long
5. Hose - Control Valve to Power
Steering Cylinder - Short
mounting into the valve. Lubricate the actuator lever
and bushing.
Mount the valve on the actuator housing making
sure that the clevis pin fits freely into the slot of the
actuator lever. Start all four mounting screws and
tighten lightly in rotation before applying the final
tightening torque of 10-15 foot pounds. Careless
tightening may cause the valve spool to be pulled off
center by actuator lever interference with clevis pin.
Be sure that the spool actuates (moves axially in
both directions) before assembling the end covers.
This can be done as follows: Place the steering gear
arm on the lever shaft. Place the steering wheel on
the wheel tube. Turn the steering wheel to move the
steering arm against a stop. Apply sufficient effort to
actuate the spool. Reverse the arm against the op-
posite stop to actuate the spool in the other direction.·
Assemble O-rings (36) on the end of the body and'
assemble and cover (35) and tighten to the valve
body. Assemble O-ring (46 ), cover plate (4 7), and
retaining rings (48).
INSTALLATION IN CHASSIS
Place the gear in the chassis and bolt securely.
Torque two mounting cap. screws. Check clearance
between upper lug
&
frame. Add shims if necessary
and torque top nut & bolt. Do not spring the cam
shaft. FREE ALIGNMENT OF THE SHAFT IS
VERY IMPORT ANT. Do not force the shaft into a
position of misalignment as this will cause binding of
the wheel tube and prevent centering of the control
valve. The-cam and actuator assembly must be free to
oscillate axially.
Center the steering gear. Set lever shaft so that the
groove cut across end of same is at a 90° angle to cen-
tre line of steering gear box (as shown in fig. 11 - 3 ).
Install pitman arm on lever shaft of gear in a vertical,
or as near to vertical, position as possible.
(If
necessary adjust drag link length to fit.) With lock-
washer and nut in place on end of lever shaft, tighten
to
specified
torque,
3 50
foot
pounds.
Install
hydraulic lines.
CAUTION: DON'T hold valve open against stop
except momentarily to get pressure readings. Holding
valve open more than this will shorten pump life. The
pump can be "burned out" quickly.
REMOVAL OF STEERING WHEEL
Set steering wheel in straight ahead position.
I.
Remove the emblem, using screwdriver at the
notch provided.
2.
Disconnect the horn wire.
3.
Remove steering wheel retaining nut and then
using a suitable puller, pull steering wheel from
upper shaft.
REPLACEMENT OF WHEEL
For replacement, reverse removal procedure.
SECURING STEERING WHEEL NUT
Clean,
de-grease and apply "Locquic Primer T'' to column
shaft threads and nut.
If
Loctite holding power is too
great, heat parts to 250" with soldering iron dis,tsscm-
Advertisement
Table of Contents
