PREVOST H3-41 Manual page 42

CAUTION: TO AVOID OVERHEATING THE
STARTER, DO NOT ENGAGE THE STARTER
FOR MORE THAN 15 SECONDS AT A TIME.
ALLOW THE STARTER TO COOL BEFORE
TRYING TO RESTART THE ENGINE.
2 - Battery Master Switch
Both the 12-volt and 24-volt systems are
activated by the master switch located on the
L.H. lower control panel. An indicator light on the
L.H. dashboard will illuminate when the ignition
key is in the OFF position.
CAUTION: WHEN PARKING THE COACH
OVERNIGHT, OR
PERIOD OF TIME, PLACE THE BATTERY
MASTER SWITCH TO THE OFF POSITION.
NOTE: When the battery master switch is
placed in the OFF position, all electrical
equipment connected to the batteries is cut- off,
with the exception of the battery equalizers and
monitor, World Transmission (WT) Electronic
Control Unit (ECU) memory, Vehicle Interface
Module (VIM), preheating system, tachograph,
and refrigerator power supply.
3 - Fast Idle Switch
For extended idling periods, run the engine at
fast idle. Depress the rocker switch to engage
fast idle. This increases the engine speed to
approximately 1,000 rpm.
NOTE: If the parking brake is released and/or
the transmission is engaged with the engine
running at fast idle, the engine will return to low
idle and remain there as long as the parking
brake is not applied and/or transmission is not
placed in neutral (N).
CAUTION: REDUCE THE ENGINE TO LOW
IDLE BEFORE SHUTTING THE ENGINE OFF.
NOTE: If the engine is stopped during fast idle,
it will not return to fast idle when the engine is
restarted. The driver must depress then reset
the rocker switch to activate fast idle after
restarting the engine.
FOR AN EXTENDED
4 - ETHER Start Control Switch
Activates the engine cold starting aid. Refer to
"Starting and Stopping Procedures" section.
5 - Jacobs Engine Brake/Output Retarder
Control
JACOBS ENGINE BRAKE:
Place the rocker switch to the first position to
activate 2/3 engine braking, and to the second
position for full engine braking. Refer to "Other
Features" section.
WARNING: ONLY USE ENGINE BRAKING
ON DRY ROADS.
ENGINE BRAKES ON SLIPPERY ROADS.
CONTROL OF COACH MAY BE LOST.
NOTE: Jacobs engine brake operates only
when the accelerator pedal is released, and
when the engine speed is over 750 rpm. The
stoplights will automatically go on when engine
braking is engaged.
TRANSMISSION OUTPUT RETARDER:
RETARDER HAND LEVER
The output retarder can be operated two ways:
- When the accelerator pedal is released ;
proceed as follows:
3-15
CONTROLS & INSTRUMENTS
NEVER APPLY THE
OEH3B326