MCi Crusader II 1989 Maintenance Manual page 344

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MC-9 MAINTENANCE MANUAL
When the steering wheel is turned. the steering shaft turns
the power steering gear actuating shaft This motion. combined
with hydraulic pressure supplied to the gear by the pump.
provides the rotating action of the gear output shaft. which is
connected to the Pitman arm.
The power steering hydraulic system has two filters to
ensure that foreign matter does not enter the pump or the
steering gear. A filter in the reservoir filters the steering fluid
before it enters the pump and a supply line fitter is used to filter
the fluid before it enters the steering gear.
SYSTEM MAINTENANCE
The power steering system requires little maintenance.
However. the system should be kept clean to ensure maximum
operating performance and trouble free service. Periodic
inspection should also be made to check for leaks.
At regular intervals. fluid level in the pump reservoir should
be checked anc! fluid added when required. Refer to Power
Steering Reservoir and Filter later in this section.
The fltiid reservoir and filter assembly is mounted in the
upper right corner of the engine compartment When the slight•
est evidence of dirt. sludge or water is discovered in the system.
disconnect fluid lines at the power steering gear. Drain, and
·efill the system with clean, recommended fluid. The power
steering fluid reservoir filter should be serviced at regular lubri•
cation intervals.
The power steering fluid line filter is in-line mounted. At
. regular lubrication intervals. 1he fluid filter element should be
removed and replaced Refer to Power Steering Filter later m
this section for service instructions.
Air in the fluid system will cause spongy action and noisy
operation. When any hose has been disconnected or when
fluid has been lost for any reason, the system must be bled.
Bleed the system as described under Bleeding Air From Power
Steering System later in this section.
CAUTION: Do not operate the pump with-
out fluid in the pump reservoir.
If the linkage between the steering gear and the front wheels
is out of adjustment. bent, twisted or worn, the steering action of
the coach will be seriously affected. Whenever any steering
linkage parts are repaired, replaced or adjusted, steering
geometry and front wheel alignment must be checked and
necessary corrections made. Refer to Front Axle for front end
alignment information (Section 1).
At regular lubrication intervals, the steering linkage should
be thoroughly inspected for worn or loose components: Sec•
tion 10, Lubrication.
After the coach has been operated continually, and high
mileage figures have been reached. overhaul of the various
steering units will be required.
General overhaul procedure normally requires removal and
disassembly of the entire assembly, cleaning and inspection of
all parts and final assembly. Careful inspection of all parts
during overhaul is very important and must not be neglected.
REMOVAL OF STEERING COLUMN
1. Shut off the battery switch.
2.
Remove steering wheel (refer to Removal of Steering
Wheel). Replace the wheel nut on the shaft to avoid losing
steering column components.
3.
Disconnect the
wire
from the contact brush terminal
located under the tum signal assembly on the left-hand side of
the steering column.
4. Loosen the two allen head screws securing the tum
signal assembly and remove it from the steering column.
5. Remove the four screws at both the lfloor and dashboard
ends of the fiberglass cover.
6.
Remove the six screws and the aluminum plate from the
middle of the cover and remove the cover from the steering .
column.
7. Loosen the clamp connecting the steering column to the
input shaft of the steering gear.
8.
Remove the four bolts and the LI-clamps that secure the
steering column to the dashboard.
The steering column may now be lifted out of the coach as a.
complete unit
INTEGRAL STEERING
DISASSEMBLY OF STEERING COLUMN
1. Remove the steering wheel nut (12).
2. Remove the spring (5), upper spacer (7), washer (8) and
nylon bushing (9) from the top of the jacket tube (13).
3. Remove the contact brush (24) from the jacket tube. Slip
the upper bearing (14) and jacket tube (13) off the upper wheel
shaft Ensure that the lower bearing remains on the wheel
shaft.