TM-9-2320-344-10

TRUCK, CARGO, GUIDED MISSILE TRANSPORTER (GMT), 8X8, M985A4GMT

TECHNICAL MANUAL; OPERATOR'S MANUAL

OCTOBER 2008

TM-9-2320-344-10 - Page 181 of 1012

Table 2.

Heater Compartment Controls and Indicators. - Continued

Key

Control/

Indicator

Function

DOWN ARROW (decrease) - Once the D (drive) is pressed,

pressing the (decrease) button allows the operator to override

the automatic function of the transmission and shift to a lower

gear range. Pressing the D (drive) button returns the trans-

mission to its automatic function.

MODE - Used for maintenance/troubleshooting procedures.

2

Cabin Floor

Vent Control

Regulates amount of airflow directed to the floor vents. This

is a rheostat-type control. Turning control CW gradually less-

ens airflow until it stops. Turning control CCW gradually in-

creases airflow to the cabin floor until the vents are completely

open.

3

Cabin Air Di-

rectional Con-

trol

Directs airflow within the cabin between the midsection and

defroster vents. This is a rheostat-type control with the mid-

point position equally distributing airflow between the mid-

section and defroster vents.

4

Vent Control

Regulates amount of outside air allowed through the cabin

fresh air vents. This is a rheostat-type control with full CCW

completely closing, and full CW completely opening the cabin

fresh air vents.

5

Heater Tem-

perature Con-

trol

Regulates temperature level of the cabin heater. This is a

rheostat-type control with full CCW the lowest (coolest) set-

ting and full CW the highest (hottest) setting.

6

Fan Control

Regulates fan output:

Off - Turn control to the full left position.

TM 9-2320-344-10

0020

0020-7