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PREVOST H3-41 - Starting and Stopping Procedures.77; Starting the Engine; Starting from the Drivers Seat

PREVOST H3-41
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STARTING AND STOPPING PROCEDURES
STARTING THE ENGINE
In normal circumstances, the engine should be
started from the driver’s seat. However, a rear-
start panel in the engine compartment permits
starting the engine from that location, mainly for
maintenance purposes.
STARTING FROM THE DRIVER’S SEAT
Apply the spring-loaded parking brake by
pulling the parking brake control button all
the way up;
Make sure the starter selector switch located
in the engine compartment is set to the
NORMAL position;
Check that the safety switch in the main
power compartment and on the dashboard
are set to the ON position;
Place transmission in neutral;
Turn ignition key to START position (refer to
Controls and Instruments chapter), release
the key after the engine starts.
Warning: If the “STARTER ON” telltale light
remains illuminated after releasing the ignition
switch, stop the engine immediately and set the
safety switch to the off position. Have the starter
checked immediately.
Caution: Do not engage starter for more than
15 seconds at a time. If engine does not start
within 15 seconds, release ignition key and let
starter cool for one minute before attempting to
restart.
Caution: Do not press accelerator pedal before
starting. This could result in an electronic
control unit fault and degrade the fuel system
control.
Caution: Special precautions are necessary
with turbocharged engines to avoid possible
turbine damage. After starting, run the engine at
normal idle for two minutes to allow lubricating
oil to reach the turbocharger. Then run the
engine at fast idle. Let oil pressure reach
normal operating range before driving.
Note: If engine does not start, return key to
OFF position before attempting to restart.
Note: If the accelerator pedal is depressed
before starting, release and wait 30 seconds
before attempting to restart.
Stopping the Engine
Apply parking brake and place transmission
in neutral (N);
Shut off all electrical loads;
Allow engine to idle for at least two minutes
before shutting engine OFF. This insures
that the turbine speed drops and allows time
for the engine exhaust gas temperature to
drop to about 300
o
F (150
o
C);
Turn the ignition key to the OFF position.
Caution: Do not shut OFF engine when
running above normal idle.
Caution: Set the Safety switch to the OFF
position after parking and when left unattended
for an extended period of time.
STARTING FROM THE ENGINE
COMPARTMENT
Switches to start and stop the engine from inside
the engine compartment are mounted on a small
panel.
Warning: Apply parking brake and place
transmission in neutral (N) before starting
engine from inside the engine compartment.
Set the Safety switches to the ON position;
Set the starter selector switch to the REAR
START position;
Press the starter push-button switch. Release
push-button after the engine starts.
REAR START PANEL 01044
Warning: Do not wear loose clothing when
working near engine. Stand clear of rotating
components.
Caution: Refer to cautions in “Starting From
The Driver’s Seat” in this chapter.
77

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