PREVOST X3-45 COACH 2018 Operator's Manual page 77

Rear Brake Air Pressure (Psi) – Primary System
Indicates the rear brake air system pressure in psi. The normal
operating pressure is from 122 to 140 psi.
A low air pressure indicator LED illuminates when the rear air
system pressure drops below 85 psi. If the air pressure drops
further, the STOP telltale light will turn on, an audible alarm will
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sound and a message will appear in the DID. If the air
pressure drops below 60 psi, the emergency spring brake
applies at full capacity.
Do not drive the coach when the brake air pressure is low.
D EF level
3 2 T
Indicates the amount of DEF (diesel exhaust fluid) remaining
in the DEF tank. The DEF tank is considered as being full when
it contains 16 gallons (60 liters) of DEF. DEF consumption will
be approximately 2% of the diesel fuel consumed.
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DEF will begin to crystallize and freeze at 12°f (-11°c). DEF
expands by approximately 7% when frozen. In order to
permit DEF expansion without causing damages to the DEF
tank, do not fill the DEF tank with more than 16 gallons (60
liters).
F uel Level
3 2 T
Indicates the amount of fuel remaining in the fuel tank. At the
beginning of the red area, there is approximately 48 gallons
(182 liters) left in the tank.
N OTE
1 9 T
A pop-up message will appear in the DID informing that
there is only 24 gallons (92 liters) left in the fuel tank.
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PA1627 X3-45 Operator's Manual
Controls and Instruments
STOP telltale light
WARNING
CAUTION
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