Lower Switch Panel; Lower Switch Panel - PREVOST XL Series Instruction Manual

Motorcoach
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L.H. lower switch panel
Switches
1. Ignition
Ignition switch has four (4) positions:
"ACCESSORIES":
Turn key counterclockwise;
only the vehicle accessories are operational and
key cannot be removed.
"OFF":
Ignition is "OFF" and key can be
removed.
"ON":
Ignition is "ON" and key cannot be
removed.
"START": Starting position; spring-loaded ignition
switch returns to "ON" position after starting.
Ignition key must be returned to "OFF" position
before trying to restart.
WARNING: Do not engage starter for more than
15 seconds. Allow starter time to cool before
engaging again.
This will prevent starter from
overheating and will allow the time delay relay to
cool.
2. XL-40: Blank for additionnal switch.
2. XL-45: Battery master switch
Both the 12 volt and the 24 volt systems are
activated by the master switch. The indicator light
(located on dashboard - see page 2-9, item #23)
will illuminate if switch is left "ON" when ignition
switch is turned "OFF".
CAUTION: When vehicle is parked overnight or
for an extended period of time, battery master
switch should be set to the "OFF" position.
NOTE: When battery master switch is set to the
"OFF" position, the electrical supply from the
batteries is cut off, with the exception of the Fire
Detection System, the Engine & Transmission
Electronic Controls, the Auxiliary Heating System,
the Battery Equalizers and the Tachograph power
supply.
3. Fast idle
18116
Push down rocker switch to engage fast idle, thus
increasing engine speed to approximately 1100
rpm. Use this switch for extended stops.
NOTE: If parking brake is released and/or
transmission is shifted with the engine running at
fast idle, engine will reduce its speed to idle and
maintain this rpm as long as parking brake is not
applied and/or transmission is in the neutral
position. If engine is stopped with the fast idle
switch in the "ON" position, this control will
automatically be cancelled when restarting the
engine; the driver must then shut off, and reset
rocker switch to reactuate fast idle. Generally,
fast idle should be reduced to low idle before
shutting off engine.
4. Ether cold starting aid (Optional) or Blank
Activates ether cold starting device in engine
compartment (see "Cold weather starting" page
4-8).
5. "Stop Engine" override
Push down rocker switch to reset the 30 second
delay period and the shutdown procedure. This
switch can be repeatedly depressed, i.e. one (1)
pulse is sufficient for each 30 second period,
for engine power in an emergency situation.
NOTE: The stop engine override switch will be
operative only if it has been depressed before the
end of the 30 second delay period.
CAUTION: The "Stop Engine" override must be
used only in emergency situations to bring vehicle
to a safe stop. Excessive use of this switch could
cause serious damage to the engine.
2 - 15
CONTROLS/INSTRUMENTS

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