TM-9-2320-342-10-1

TRUCK, WRECKER, 8X8 M984A4

TECHNICAL MANUAL; OPERATOR'S MANUAL

OCTOBER 2008

TM-9-2320-342-10-1 - Page 238 of 1428

Table 1.

Heater Compartment Controls and Indicators. - Continued

Key

Control/

Indicator

Function

1

Transmission

Range

Selector

R (reverse) - Used to back up vehicle.

N (neutral) - Used when starting vehicle, parking vehicle, or

if vehicle controls are left unattended while engine is running.

D (drive) - Used for all normal driving conditions. When

vehicle is in motion, transmission will upshift/downshift

automatically.

UP ARROW (increase) - Once the D (drive) is pressed,

pressing the (increase) button allows the operator to override

the automatic function of the transmission and shift to a higher

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

transmission to its automatic 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

transmission 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

lessens airflow until it stops. Turning control CCW gradually

increases airflow to the cabin floor until the vents are

completely open.

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