SECTION 14: STEERING
12
DOB 2490-2789 | X3-45 Commuter PA1605 Maintenance Manual (Section 14 revised April 2018)
At regular lubrication intervals, the steering
linkage should be thoroughly inspected for worn
or loose components.
After the vehicle 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 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.
Lubrication fittings must all be cleaned before
applying lubricant. Moreover, always be sure the
equipment used in applying lubricant is clean.
Every precaution should be taken to prevent entry
of dirt, grit, lint or other foreign matter into
lubricant containers. Replace fittings that have
become broken or damaged. Lubrication
intervals, as well as the recommended lubricants
for the steering components, are given in the
"Lubrication And Servicing Schedule"
in Section
24 of this manual. The intervals given in the
schedule are recommended for normal service.
More frequent intervals may be required under
severe operating conditions.
12.1 STEERING SYSTEM PLAY INSPECTION
Basically, the steering system play is checked
with the engine running and the front wheels in
the straight ahead driving position. The steering
wheel is slowly turned in one direction until there
is a perceptible movement of a front wheel. If a
point on the steering wheel rim moves more than
the value indicated below before perceptible
return movement of the wheel under observation,
there is excessive free play in the steering
system.
Steering wheel travel covered
Maximum value:
1.732 inch (44mm) with
Prevost 18-inch steering
wheel
NOTE
The full procedure is described under
paragraph 1.6.7 Checking the Steering Gear
Play in ZF SERVOCOM DESIGN,
OPERATION, MAINTENANCE, INSPECTION
(8090) manual.
Take note that the maximum travel covered
value specified in ZF’s manual doesn’t
apply to the Prevost design which uses a
18-inch steering wheel.
If the maximum value is exceeded, the steering
system should be thoroughly inspected for worn
or loose components, beginning with the steering
linkage. If the steering linkage is in good
condition, then the steering column and the
steering gear should be inspected.
MAINTENANCE
Perform the steering system play inspection
every 100 000 miles.
12.2 POWER STEERING RESERVOIR AND
FILTER
The power steering reservoir is located on R.H.
side of engine compartment and accessible
through the engine compartment doors. (Figure
19).
12.2.1
Oil Level Check Procedure
1. Stop engine. Open engine compartment
doors.
2. Unscrew and remove the dipstick located on
top of reservoir and wipe with a clean rag.
3. Insert dipstick in reservoir. Remove it again to
check fluid level (Figure 19).
4. Adjust level to
"FULL"
mark using proper
dipstick side depending on fluid temperature,
use 80W140 full synthetic gear oil.
5. Reinsert and tighten the dipstick.
6. At regular intervals, fluid level should be
checked in the reservoir and filter assembly.
