Locking The Dcdl; Unlocking The Dcdl; Retractable Tag Axle; Variable Assistance Steering Gear (Optional) - PREVOST H3-45 VIP Owner's Manual

LOCKING THE DCDL

When encountering poor road conditions where
maximum traction is
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 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.

RETRACTABLE TAG AXLE

Tag axle is controlled by a valve located on the
lateral control panel. 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
"TAG AXLE CONTROL VALVE" on page 16
Section 4, Controls and Instruments.
The tag axle service brakes operate only when the
tag axle is in the wheels down position. Never
lower the tag axle while the coach is moving. A
pictogram appears in the Driver Information
Display if the vehicle speed exceeds 12 mph (20
km/h) with tag axle raised. The tag axle can be
raised in tight maneuvering areas like in a parking
needed, follow the
in
PA-1619 Owner's Manual H3-45 VIP
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
Do not use tag axle in raised position for an
extended period. Raising tag axle increases load
on the drive axle, suspension and tires.
Do not drive vehicle with tag axle raised when
speed is exceeding 12 mph (20 km/h).
In order to prevent damage to the suspension,
always raise the tag axle before lifting the coach.
VARIABLE ASSISTANCE STEERING
GEAR (OPTIONAL)
The steering effort is controlled automatically in
relation to vehicle speed. For more information,
refer to Maintenance Manual Section 14: Steering.

KEYLESS ENTRY SYSTEM

This system, located below the entrance door
handle, is used to lock or unlock the entrance door,
the baggage compartment and the service
compartment. Unlocking the entrance door using
the keyless system will also disarm the intrusion
protection and the anti-theft system.
At the time of purchase, the new owner will be
given a default four (4) digit access code to unlock
the vehicle and a permanently programmed six (6)
digit authority code that will allow him to program
up to 40 alternate four (4) digit personal access
codes (see "programming and managing personal
codes" instructions below).
Do not push the keyless buttons with a key, pencil
or any other hard or sharp object as the buttons
could be damaged. Although each button is
provided with two digits separated by a vertical
line, there is only one contact per button. Press in
the center of the button.
NOTE
Pressing a system key will illuminate the
keyboard, unlocking the entrance door will also
illuminate the vehicle
illumination will go off after a 30 seconds period
of inactivity.
Other Features 5-29
step lights. Both