MCi Crusader II 1989 Maintenance Manual page 369

Date
1-1-89 ·
Page·_. _ _
1_1_-2_s_
MC-9 MAINTENANCE MANUAL
INSTALLATION OF STEERING GEAR
1.
Align steering gear housing with mounting holes m
undercarriage frame. Install bolts with hard·steel washers and
tighten the 'i'a" bolt to 475-525 ft. lbs. (644-712 Nm} torque.
Tighten the¾" bolts to 295-325 ft. lbs. (400-441 Nm) torque.
2. Install Pitman arm on gear output shalt with alignment
marks aligned. Tighten Pitman arm nut to 310-320 ft. tbs. (420-
434 Nm) torque.
3. Bleed air from power steering system. as detailed below.
4. Attach drag link to Pitman arm. Install end clamp bolt and
tighten to 60-80 fl lbs. (81-108 Nm) torque.
5. Connect steering shaft to steering gear actuating shaft.
Install clamp bolt with washer and nut. Tighten to 25-30 ft. lbs.
(34-41 Nm) torque.
6. Remove protective caps from power steering gear supply
and return lines and connect the lines to the gear.
7. Connect height control valve link to mounting bracket.
Raise coach to normal ride height and remove the spacers from
the axle.
8. Check the fuel oil level in the hollow center axle. Replace
any loss that occurred during power steering gear removal. The
axle holds two quarts of fuel oil. ·
9. Fill the power steering reservoir to FULL mark on sight
glass. Use oil specified in Lubrication, Section 10.
10. Bleed the hydraulic system as directed under Bleeding
Air from System, below.
BLEEDING AIR FROM POWER STEERING SYSTEM
NOTE: Thia procedure la to
be
followed any
· time the hydraulic loop has been opened,
depending on
what area has
been
worked
on. The time to bleed the system could be
considerably leas than tor a total system
purge.
1. Ensure all power steering connections have been made
and are property tightened.
2. Add fluid (1 0W-40 oil) to reservoir and fill until oil is to
bottom of fill spout in reservoir cover.
3. Start engine. but do not operate at higher than idle rpm.
4. At the instant the engine starts. oil level will drop in the
reservoir as oil fills the supply tine to the power steering gear.
Oil must be continually added to ensure pump inlet is not
allowed to starve or run dry.
5. When oil level stabilizes within the.reservoir. the oil level
should be brought to the sight glass level.
6. With the engine at idle speed, the steering wheel should
be turned lock to lock at least six times. When all air is removed
from the system, air bubbles
will
no longer surface through the
oil in the reservoir. While air bubbles are still surfacing. it indi-
cates that the system is not completely bled. In this case the
steering wheel must continue to be cycled lock to tock and the
oil level must be constantly monitored and oil replenished.
7. With the system fully bled. fill the reservoir to specified
levels. Replace cap on reservoir.
Figure 11·103. Power Steering Pump - Installed.