CONTROLS AND INSTRUMENTS
LEVEL LOW SYSTEM (4, 5, 6)
LEVEL LOW SYSTEM CONTROLS 16094
During driving, the conventional air leveling
system of the vehicle controls the height at three
points: the front, the left rear and the right rear.
Your vehicle is equipped with a suspension
system that consists of air springs (pressurized air
bellows) located near each wheel. The amount of
air in each air spring (and thus the vehicle height)
is controlled by automatic leveling valves that
operate between the chassis and the axles of the
vehicle.
The three leveling valves are located as follows:
one at the front which controls the amount of air in
both front air springs, one at the left rear which
controls the left rear corner of the vehicle and one
at the right rear which controls the right rear
corner of the vehicle. During normal driving, these
valves work automatically to maintain the chassis
at the proper level above the axles, indifferent of
road conditions or vehicle weight.
Note: Prévost Car vehicles are designed to
operate within specific weight load/ranges for
each axle(GAW) and for total vehicle weight
(GVW). If the coach is heavier than the design
limits, Level Low System (LLS) components
damage and problems can occur.
When parked, and ONLY when parked, the level
of the vehicle can be manually adjusted within the
range of travel of the air springs. Thus, if the
vehicle is parked on uneven ground, the manual
override leveling system can be used to level the
chassis of the vehicle. With the ignition ON
(engine running or not), turn the selector switch
located on L.H. side control panel to the area of
the vehicle requiring leveling, then press the
rocker switch accordingly (up or down) to inflate
or deflate the selected set of air springs. The front
position raises or lowers the front only and does
not tilt the vehicle to its sides. Each rear position
raises or lowers its respective side, therefore, the
rear positions can be used to tilt the vehicle to one
side or the other, or they can be used to raise or
lower the rear of the vehicle. When leveling, it is
often necessary to run the engine in order to get
an adequate air supply.
Note: For maximum ease of ingress and egress
as well as for maximum leveling range, lower the
vehicle completely before leveling.
Note: It is always better to first level the rear of
the vehicle (right to left) before raising or lowering
the front. After adjusting the rear, watch the level
indicator as you adjust the front. If the level
indicator shows that the vehicle is starting to tilt to
either side, stop adjusting the front as one of the
air springs has come to the end of its travel range.
After manual leveling, turn OFF the engine. The
vehicle will stay in the leveled position (the air is
"locked" in the air springs) as long as there are no
air leaks. The vehicle will hold this position for
several days. When engine is restarted, with the
level selector switch in the OFF position and air
pressure is adequate, the vehicle will
automatically level itself for driving conditions.
Warning: Do not drive the vehicle with the level
low selector switch in any position other than
OFF, as this may render the vehicle unsafe and
uncontrollable. If this is the case, the Level Low
warning telltale light in the dashboard will flash,
reminding you that the selector is not in the OFF
position.
Note: If, for any reason, you wish to start the
engine without moving the vehicle (to warm up the
engine for instance) while keeping the vehicle in
the manually leveled position, place selector
switch in any position except OFF. When ignition
switch is turned to the OFF position, reset the
selector switch to the OFF position.
PARKING BRAKES CONTROL VALVE (7)
Spring-loaded parking brakes are applied by
pulling up the control valve knob and protector
assembly. Lift the safety cover and push down to
release brakes. Refer to "Emergency and Parking
Brakes" in " Chapter 6: Emergency Features and
Safety Equipment".
3-6
To Next Page
Loading...
Need help?
General
