Low-Buoy; Retractable Tag Axle; Tag Load Release System (Tlr); Safety Lights - PREVOST H3-41 Manual

OTHER FEATURES
Note :
The kneeling system does not operate
when the coach is traveling over 5 mph (8
km/h). Consequently, the driver cannot
inadvertently operate the kneeling system at
higher speeds.
HI-BUOY
The coach may be equipped with the optional
front Hi-Buoy or full Hi-Buoy. The front Hi-Buoy
system has the same functions as front
kneeling. In addition it enables passengers to
get on or off the coach easily by raising the front
end about 4 inches (100 mm), which may prove
useful when the dock is higher than usual. The
front Hi-Buoy is combined with front kneeling to
increase flexibility of the system. Refer to
"Controls & Instruments" chapter.
The full Hi-Buoy system raises the whole coach
about 4 inches (100 mm). It can be used to
enable passengers to get on or off the coach
easily, and to safely travel roads with high
obstacles. Refer to "Controls & Instruments"
chapter.
Note :
The Hi-Buoy system does not operate
when the coach is traveling over 5 mph (8
km/h). Consequently, the driver cannot
inadvertently operate the Hi-Buoy system at
higher speeds.

LOW-BUOY

This system lowers the coach about 4 inches
(100 mm). It enables the coach to drive through
underpasses where the height is less than 12
feet (3.7 m).
Low-Buoy operation is controlled by a valve
located on the right lateral console. The valve
can be switched to either LOW-BUOY or
NORMAL positions. A warning light on the
dashboard will indicate that the coach is being
lowered. Refer to "Controls & Instruments"
chapter.
Caution :
Avoid parking too close to the
curb or other obstacles that could damage the
coach during low-buoy operation.
Note :
The Low-Buoy system does not
operate when the coach is traveling over 5 mph
(8 km/h). Consequently, the driver cannot
inadvertently operate the Low-Buoy system at
higher speeds.

RETRACTABLE TAG AXLE

Optional tag axle retraction is controlled by a
valve located on the right lateral console. The
valve can be switched to either the WHEELS UP
or WHEELS DOWN position. The axle will be
automatically raised or lowered by air pressure
according to the valve position. Refer to
"Controls & Instruments" chapter.
The tag axle service brakes and parking brakes
operate only when the tag axle is in the
WHEELS DOWN position. Never lower the tag
axle while the coach is moving. When the tag
axle is in the WHEELS UP position, the
corresponding indicator light will illuminate and a
beep will sound to alert the driver of the tag
axle's position. The tag axle can be raised in
tight maneuvering areas like in a parking lot or
to make it easier to turn a short corner. The tag
axle shortens the wheelbase and allows tighter
turning. Raising the tag axle transfers extra
weight and additional traction to the drive
wheels providing improved control on slippery
roads.
Caution :
In order to prevent damage to the
suspension, always raise the tag axle before
lifting the coach.
Caution :
Never lower the tag axle while coach
is moving.
TAG LOAD RELEASE SYSTEM
(TLR)
This standard system allows automatic
unloading of the tag axle air springs, without
raising the axle, whenever coach speed drops to
less than 8 mph (13 km/h) and steer angle
exceeds 22.5° (1 1/4 turns of the steering
wheel). The system automatically transfers the
tag axle load to the drive axle. It reduces tag
wheel shearing to convey shorter turning radii
for tighter cornering and remarkable agility in
close-quarter maneuvering, whether backing up
or moving forward.

SAFETY LIGHTS

Daytime Running Lights (DRL)
The low beams come on automatically at
reduced intensity when the engine is started and
the parking brake is released. The daytime
running lights provide added safety by making
the traveling coach more visible to other drivers.
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