Engine Protection System; Automatic Engine Shutdown; Idle Shutdown Timer - PREVOST X3-45 Commuter 2020 Operating Manual

FIGURE 4: QUICK CONNECT JUMP START
CONNECTOR
To jump start, proceed as follows:
1. Shut off all electrical equipment;
2. Remove the protective plug from the quick
connect jump-start connector located in the
engine curb side compartment;
3. Connect the jumper cable to the quick
connect jump-start connector;
4. Start the vehicle with the dead battery;
5. Disconnect the jumper cable;
6. Install protective plug on the quick connect
jump-start connector.
NOTE
Jumper cables must be rated at 500 cranking
amperes. If jumper cable length is 20 feet (6 m)
or less, use 2/0 (AWG) gauge wires. If cable
length is between 20 and 30 feet (6 to 9 m), use
3/0 (AWG) gauge wires.

ENGINE PROTECTION SYSTEM

The engine protection will automatically derate or
stop the engine when certain engine conditions
reach a critical stage.
In the event of a serious fault, the red STOP
telltale light comes on and an audible alarm will
sound if the engine is running.
An illuminated STOP telltale light indicates a
serious problem has been detected, and the
DOB 1300-1556
Starting and Stopping Procedures 6-7
driver must respond immediately to the problem.
The vehicle must be safely pulled off the road and
stopped. In some instances, the engine must be
switched off immediately.

AUTOMATIC ENGINE SHUTDOWN

Prior to an actual automatic shutdown, the engine
will automatically derate, go to idle, and then stop
as the vehicle speed gets below 2 mph (3 km/h).
The engine
automatically derate and stop the engine when
one or more of the conditions listed below
reaches a critical point:
High engine coolant temperature
l
High engine oil temperature
l
Low engine oil pressure
l
High crankcase pressure
l
After the automatic engine shutdown sequence,
the engine may be restarted. To do so, turn the
ignition switch to the OFF position for 7 seconds
and then turn it back to ON. However, it will only
operate for 30 seconds unless the problem is
resolved.
Use this function sparingly and in order to move
the vehicle to a safe parking place only.
Excessive use may result in severe engine
damage.
WARNING
Failure to take necessary action when the
STOP telltale light is on can ultimately result in
automatic engine derate and shutdown.

IDLE SHUTDOWN TIMER

The idle shutdown timer is programmed to shut
down the engine after 15 minutes of engine idling
time.
PA-1639 Operator's Manual 2020 X3-45 Commuter
shutdown protection will