PREVOST X3-45 VIP 2015, Owner'S Manual

Page: 123 / 190

Safety Features and Equipment 7-3
CAUTION
Air filled through the two emergency fill valves
will pass through the standard air filtering
system. Do not fill air at any other location. Do
not exceed 120 psi (827 kPa).
FILL VALVE IN ENGINE COMPARTMENT
12162
EMERGENCY AND PARKING
BRAKES
During normal operation, if air pressure in both
brake circuits drops below 40 psi (276 kPa),
spring-loaded emergency parking brakes will be
immediately applied at full capacity to the drive
axle wheels to stop the vehicle.
Spring-loaded parking brakes are applied by
pulling up the control valve knob located on the
L.H. lateral console.
Parking brakes are not designed to be used as
service brakes. For normal driving conditions,
the control valve knob must remain in the down
position.
DANGER
Always apply the parking brakes before
leaving the driver's seat.
NOTE
Only use the parking brakes to supplement the
service brakes to stop the vehicle in
emergency conditions. The stopping distance
will be considerably longer than when using
normal service brakes.
NOTE
Before releasing the parking brakes by
pushing down the control valve knob, check
the pressure gauges to make sure that the
brake system air pressure is greater than or
equal to 95 psi (655 kPa).
NOTE
A beep will sound if the ignition switch has
been turned off without applying the parking
brakes. The same beep will sound if pressure
is still applied to the service brake pedal.
NOTE
The stoplights will automatically turn on when
the parking brake is applied and the ignition
key is turned to the ON position.
SAFETY EQUIPMENT
AUTOMATIC FIRE DETECTION AND
SUPPRESSION SYSTEM (AFSS) (OPTIONAL)
The vehicle may be equipped with the optional
Automatic Fire Detection and Suppression
System (AFSS).
System operation
When a fire is detected inside the engine
compartment, the system sends a fire alarm
signal to the
Protection Panel located in the
Driver’s area near the lateral control panel. The
Protection Panel immediately turns on the fire
“ALARM” lamp and sounds the audio alarm.
After a 15-second time delay the engine is
automatically shut down. The fire extinguisher is
discharged simultaneously with engine
shutdown.
NOTE
The Manual Activation Switch is used
when immediate discharge of the fire
extinguisher and engine shutdown is
desired.
NOTE
The Protection Panel continuously
monitors system integrity and displays the
information via the “SYSTEM OK” and fire
“TROUBLE” indicators.