TM-9-2320-346-10

TRUCK, COMMON BRIDGE TRANSPORT (CBT), 8X8 M1977A4 W/WINCH AND M1977A4 W/O WINCH

TECHNICAL MANUAL; OPERATOR'S MANUAL

OCTOBER 2008

TM-9-2320-346-10 - Page 179 of 1184

Table 1.

Heater Compartment Controls and Indicators. - Continued

Key

Control/

Indicator

Function

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.

Low - One position to the right of off.

Medium - Two positions to the right of off.

High - Turn control to the full right position.

7

Air Condition-

ing Control

Off - Full left position.

TM 9-2320-346-10

0021

0021-3