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PREVOST X3-45 - Locking the Dcdl; Unlocking the Dcdl; Kneeling System; Hi-Buoy

PREVOST X3-45
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Other Features
68
4. Always unlock the DCDL as soon as the
need for maximum traction has passed and
the vehicle is traveling on a good road or
highway.
5. Do not lock the DCDL when the wheels are
slipping or losing traction, or damage to the
axle can result.
6. Do not lock the DCDL when the vehicle is
traveling down steep grades, or potential
loss of vehicle stability could occur.
LOCKING THE DCDL
When encountering poor road or highway
conditions where maximum traction is needed,
follow the recommended procedures:
1. Without the wheels spinning, slipping or
losing traction, flip the DCDL control switch
to the “LOCK” position while maintaining a
constant vehicle speed.
2. Let up momentarily on the accelerator to
relieve torque on the gearing, allowing the
DCDL to lock.
3. When the DCDL is fully locked, the vehicle
will have an “understeer” condition when
making turns. Proceed cautiously over poor
road or highway conditions.
UNLOCKING THE DCDL
When the vehicle can safely operate and driving
conditions have improved, disengage the DCDL
following the recommended procedures:
1. Flip the control switch to the “UNLOCK”
position, when the vehicle is stopped or
when traveling at low speed while the
wheels are not spinning, slipping or losing
traction.
2. Let up momentarily on the accelerator to
relieve torque on the gearing, allowing the
DCDL to unlock.
3. Resume driving at normal speed using good
driving judgment.
KNEELING SYSTEM
His system lowers the front end, enabling
passengers to get on and off the coach without
any difficulty.
NOTE
This coach is equipped with an interlock
system which automatically applies the
parking brake when the kneeling system is
activated.
To operate, stop the coach, set the transmission
to neutral (N), then push down the rocker switch
located on the dashboard. (Refer to "Controls &
Instruments" chapter). The parking brake will be
applied automatically and a warning flasher will
indicate that the front of the coach is being
lowered.
To raise the front of the coach to its normal
height, push up the rocker switch. The front end
will rapidly rise up. The system will release the
parking brake and shift the transmission to the
previously selected range.
CAUTION
Avoid parking the coach too close to the
sidewalk or to other obstacles which could
damage the coach during kneeling.
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.
NOTE
Kneeling is disabled when the entrance door
is open.
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.

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