Front Instrument Panel
Page 10
The front instrument panel is a
collection of gauges, controls, and
warning indicators used to operate
and monitor various vehicle
systems.
1. Parking/Emergency Brake
Control
This Push/Pull valve applies the
rear wheel spring brakes when
parking. It may also be used to
stop the vehicle in an
emergency situation.
PULL on the valve knob to
apply brakes, and PUSH to
release brakes.
See
“Emergency/Parking Brake
Control Valve” on page 33.
2. Wiper Control Lamp
This fixture illuminates the
wiper controls.
3. Diesel Emission Fluid (DEF)
Gauge
This gauge measures the
amount of DEF in the 10.6
gallon reservoir tank. Diesel
emission fluid is mixed with hot
exhaust, resulting in an
alteration of the chemical
composition of the exhaust to
make it EPA10 compliant.
A solid red light indicates an
initial warning level of 16.6%;
under such conditions,
removed the vehicle from
service immediately.
A flashing red light indicates a
critical warning level of 11%;
under such conditions,
immediately move the vehicle
to a safe location and shutdown
the engine.
4. Air System Pressure Gauge
This dual indicator gauge
monitors brake circuit air
pressure for both primary and
secondary air circuits.
Normal air system pressure
should not register below
70 psi.
The spring brakes will gradually
apply automatically if pressure
LEGEND
1. Parking/Emergency Brake
Control
2. Wiper Control Lamp
3. Diesel Emission Fluid (DEF)
Gauge
4. Air System Pressure Gauge
5. Engine Coolant Temperature
Gauge
6. Diesel Fuel Gauge
7. LED Warning Lights and Indicator
Panel
8. Speedometer/Odometer Gauge
9. Kneeling System Switch
10. Wheelchair Ramp Switch
11. Manual Fire Suppression Button
12. Automatic Fire Suppression
System (AFSS) Display Panel
13. Accessory Tank Air Pressure
Gauge
14. Windshield Wiper/Washer Control
Valve
15. Driver’s Temperature Control
16. Driver’s Heat/Ventilation Control
17. Driver’s Heater/Defroster Control
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