Lower Switch Panel - PREVOST XL Series Manual

Diagram Chart
The diagram chart recording speedometer and
tachometer data covers a 24-hour period. Open
the tachograph cover using the key provided,
then insert the diagram chart with the MPH or
KM/H side facing up.
correctly positioned on the drive boss before
closing the cover.
CAUTION:
To prevent damage to the
mechanism, do not run the engine with a
damaged diagram chart or without a diagram
chart. Install a dummy plastic card (Prévost part
no. 590251) if the coach is operated without a
diagram chart.
Instrument & switch brightness control
Adjust as required. Brightness is progressively
dimmed as control knob is rotated clockwise.
NOTE:
Dashboard panel gauges show appro-
ximate readings and should not be relied upon for
mechanical adjustments.
L.H. lower switch panel
FIGURE 10
Switches
1. Ignition
The 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.
Make sure the chart is
18116A
"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:
than 15 seconds.
before engaging again. This will prevent starter
from overheating and will allow the time delay
relay to cool.
2. XL-40: Blank for additional 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 2-7, 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 Prodriver
Transmission Electronic Controls, the Auxiliary
Heating System, the Battery Equalizer and the
Tachograph power supply.
3. Fast idle
Push down rocker switch to engage fast idle, thus
increasing engine speed to approximately 1100
rpm. Use this switch for extended stops.
CAUTION:
Idling produces sulfuric acid which
breaks down the oil and eats into bearings, rings,
valve stems and engine surfaces. If you must idle
the engine, the high idle function should be used.
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
2 - 14
CONTROLS/INSTRUMENTS
Do not engage starter for more
Allow starter time to cool
tm
, the Engine &