TM 9-2320-360-10
12-13. CENTRAL TIRE INFLATION SYSTEM (CTIS) OPERATION (CONT)
NOTE
If HET Tractor average speed exceeds speed limit setting for 1
minute, amber OVERSPEED light will begin to flash slowly CTIS
will automatically inflate HET Tractor tires to next higher air
pressure setting.
While CTIS is operating, green light at next higher setting will
flash slowly until next higher setting is reached.
When next higher CTIS air pressure setting is reached, amber
OVERSPEED light will stop flashing. Green light indicating new
CTIS setting will stop flashing and remain lit.
(3) Set CTIS rotary selector switch (2) to appropriate position. Press START (CTIS) switch (3).
CAUTION
CTIS rotary selector switch should always match lighted terrain
flashing green light. If switch and lighted settings do not match,
operator must correct the problem.
(4) Perform one of the following tasks if CTIS setting and driving conditions do not match.
(a) Move CTIS rotary selector switch (2) to flashing green light position to increase tire
pressure.
(b) Reduce HET Tractor speed and check for continuous green light on selec tor switch
(2) setting. This will indicate CTIS setting, vehicle speed, and ground conditions are
correctly matched.
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