Accelerator Pedal; Allison Transmission; Operation; Pushbutton Shift Selector - PREVOST X3-45 COACH 2018 Operator's Manual

Other Features chapter under Antilock Braking
System. When the brake pedal is depressed,
the brake lights turn ON automatically.
For safe and effective braking, the air system
pressure should reach at least 122 psi in both
the primary and secondary circuits. A warning
light and an audible alert will sound when the air
pressure in either the primary or secondary
circuits drops below 85 psi. If this occurs, stop
the coach; determine the cause of the pressure
loss before proceeding. The brake pedal can be
used in conjunction with the transmission
retarder. Refer to Transmission Output Retarder
in this chapter.
DANGER
Immediately report any brake system problem
to your company or directly to the nearest
prevost or prevost-approved service center.
Do not "fan" or "pump" the brake pedal. This
practice does not increase brake system
effectiveness but rather reduces system air
pressure thereby causing reduced braking
effectiveness.
CAUTION
"Riding" the brake by resting one's foot on the
brake pedal when not braking can cause
abnormally high brake temperature, can
damage and cause premature wear of brake
components and reduce brake effectiveness.

ACCELERATOR PEDAL

Controls engine RPM as needed.
N OTE
1 9 T
T he accelerator pedal will not operate when
1 9 T
the entrance door is open.

Allison Transmission

The transmission is fully automatic:
ranges should be
according to driving speeds to improve vehicle
performance and control. The speed ratio of the
power converter changes automatically as
vehicle speed increases and direct-drive goes in
Proper
automatically selected
PA1627 X3-45 Operator's Manual
Controls and Instruments
and out as necessary. The speed ratio is
modulated by vehicle speed and accelerator
pedal position. You will find the complete
transmission operation instructions and driving
th
tips in the Allison 5
P P
Operator's Manual included in your vehicle's
publication box.

OPERATION

When a button is depressed on the transmission
control pad, the corresponding letter or number
is displayed indicating the transmission is ready
to operate in the selected range. If the
transmission control module (TCM) detects a
serious problem in the transmission, the CHECK
telltale lights on the dashboard.
ALLISON PUSHBUTTON SHIFT SELECTOR

PUSHBUTTON SHIFT SELECTOR

The pushbutton shift selector has the following
elements:
R
: Press to select Reverse gear.
N
: Press to select Neutral.
D
: Press to select Drive. The highest forward
range available will appear in the digital display
window under SELECT. The transmission will
start out in the lowest available forward range,
displayed under MONITOR,
automatically to the highest range.
: Press respectively the
(Downshift) arrow button when in DRIVE to
4-55
Generation Bus Series
07142
and advance
(Upshift) or