TM-9-2320-272-10

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; OPERATOR'S MANUAL

SEPTEMBER 2004

CHANGE 2

TM-9-2320-272-10 - Page 122 of 481

TM 9-2320-272-10

2-23

2-4. BODY EQUIPMENT CONTROLS AND INDICATORS (Contd)

Key

Item and Function

12

AIR CONDITIONER VENT runs along entire length of ceiling and allows

air to circulate.

13

HEATER THERMOSTAT regulates heater temperature.

14

FIRE EXTINGUISHERS are mounted on van front and rear walls.

15

TELEPHONE JACK connects van telephone to outside lines.

16

VAN BODY EXPANDING AND RETRACTING WRENCH is used to expand

and retract van body.

17

SIDE PANEL LOCK WRENCH is used to lock outer edges of van roof,

corner posts, and end panels when van is expanded.

18

PLATE contains instructions for operation of van.

19

BLACKOUT MAIN SWITCH is turned on for blackout operations.

20

EMERGENCY LIGHT SWITCH is turned on when normal service lights fail.

21

SIDE DOORS are used by personnel when van is expanded.

NOTE

An instruction plate near the circuit breaker

panel lists circuits controlled by each switch.

22

CIRCUIT BREAKER PANEL controls electric power received from outside

source.