Table 1. Main Instrument Panel Controls and Indicators. - Continued
Key
Control/
Indicator Function
10 Central Tire
Inflation
System Rotary
Selector
Switch
Four-position switch used to control tire inflation/deflation for
different terrain conditions.
11 Central Tire
Inflation
System ON/
OFF Switch
Two-position switch. When switch is in ON position, CTIS will
operate. Positioning switch to OFF will shut down CTIS.
12 Tire Pressure
Indicator Lights
Light indicates terrain condition selected by CTIS rotary
selector switch. A maximum speed is associated with each
terrain condition. Lights are labeled as follows:
HIGHWAY - Maximum speed 45 mph (72 km/h). Tire
pressure is 75 psi (517 kPa).
CROSS COUNTRY - Maximum speed 30 mph (48 km/h). Tire
pressure is 55 psi (379 kPa).
MUD, SAND & SNOW - Maximum speed is 15 mph (24 km/
h). Tire pressure is 40 psi (276 kPa).
EMERGENCY - Maximum speed is 5 mph (8 km/h). Tire
pressure is 30 psi (207 kPa).
13 LOW AIR
(Central Tire
Inflation
System)
Indicator
Lights (red) to warn of low pressure in HET Tractor air system.
This condition causes CTIS to shut down, giving HET Tractor
brake system priority for available air pressure. The CTIS
automatically resumes operation when air pressure builds up
to approximately 110 psi (758 kPa).
TM 9-2320-360-10 0015
0015-3
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