TM-9-2320-428-10

TRUCK, CARGO, 8X8, M977

TECHNICAL MANUAL; OPERATOR'S MANUAL

JUNE 2009

TM-9-2320-428-10 - Page 155 of 1072

Table 1.

Tunnel panel controls and indicators. - Continued

Key

Control/

Indicator

Function

1

Shut Down

Handle

Used to shutdown engine in emergencies. Not included in

later base models.

2

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.

3 - Low gear range. 2 - Lower gear range. 1 - Lowest gear

range.

3

CBT Control

Panel (M1977

only)

Used to control CBT load handling system (LHS) operations.

4

Joystick

(M1977 only)

Used to operate the LHS from the cab. The function being

controlled is determined by the LHS MODE SELECT switch.

5

NO TRANSIT

Indicator

(M1977 only)

Illuminates when the hook arm assembly is not in the

completely stowed position. The CBT is not to be driven

except in the immediate loading and unloading area as long

as NO TRANSIT indicator is illuminated.

6

LHS

ENGAGED

Illuminates when hydraulic pressure is supplied to the LHS.

TM 9-2320-428-10

0020

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