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
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 13
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 lot or to make it
is needed, follow
PA-1638 Owner's Manual X3-45 VIP
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
the 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. 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
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
in
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 step lights. Both illumination
will go off after a 30 seconds period of inactivity.
Other Features 5-29
compartment and the service
codes"