Hydraulic End Limiter Adjustment After Wheel Alignment; Turning Angle Adjustment; Turn Adjustment - PREVOST H3-41 Maintenance Manual

16.2.4 Hydraulic End Limiter Adjustment After
Wheel Alignment
NOTE
Before steering limiter readjustment, verify
vehicle wheel alignment and ensure that oil
level is checked and that air bleeding is done.
A setting of the steering limitation is necessary if
or when:
d) A new or repaired steering gearbox is fitted or
e) New screws (20 and 128) were fitted to the
automatically adjusting steering limitation or
f)
Alterations to or adjustments of the front axle
were carried out.
Find the end limiter adjustment procedure in
Maintenance Information MI20-12 available
on Prevost Technical Publications site.

16.2.5 Turning Angle Adjustment

The maximum turning angle is set through the
two steering stop screws installed on the axle
center. The turning angle is factory adjusted to
accommodate the chassis design, and therefore,
does not require adjustment on new vehicles.
However, it should be checked and adjusted any
time any component of the steering system is
repaired, disassembled or adjusted.
Check if front tires rub against the frame or if the
steering gear has been serviced.
Proceed with the following method to check the
steering maximum turning angle:
16.2.6 R.H. Turn Adjustment
CAUTION
To prevent the steering damper from interfering
with the adjustment of turning angles, make
sure its fixing bracket is at the correct location
on the axle center (refer to paragraph 13.5)
1. Turn steering wheel to the right until the boss
on the axle center touches the right stop
screw.
2. Verify the nearest point of contact of the ball
socket body with the air bellows support
assembly. Measure the distance between
those two points.
3. The distance between these two points
should be approximately 1/8 inch (3 mm). If
not, the steering stop screws must be
readjusted.
4. Verify the nearest point of contact of the drag
link with the tire. Measure the distance
between those two points.
5. The distance should be 1 inch (25 mm) or
more. If not, the steering stop screws must
be readjusted.
6. This must be done for a full right turn.
7. If readjustment is required:
a.
b.
16.2.7 L.H. Turn Adjustment
1. Turn steering wheel to the left until the boss
on the axle center touches the left stop screw.
2. Verify the nearest point of contact of the ball
socket body with the air bellows support
assembly. Measure the distance between
those two points.
3. The distance between these two points
should be approximately 1/8 inch (3 mm). If
not, the steering stop screws must be
readjusted.
4. Check the stroke of the steering stabilizer
cylinder (damper). It should not exceed
12.59 inches (320 mm).
5. The steering stopper screw must be in
contact before the steering stabilizer reaches
the end of the stroke.
6. This must be done for a full left turn.
7. If readjustment is required:
a.
b.
PA1621 Maintenance Manual All Series | Section revised June 2019
SECTION 14: STEERING
Remove the swivel stop screw.
Add to the stop screw the required
number of washers to obtain the proper
measure, tighten the
afterwards. Two washers of different
thickness are available: 1/16 inch and
3/16 inch.
Remove the swivel stop screw.
Add to the stop screw the required
number of washers to obtain the proper
measure, tighten the
afterwards. Two washers of different
thickness are available: 1/16 inch and
3/16 inch.
stop screw
stop screw
37