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 272 of 481

TM 9-2320-272-10

2-163

e.

Operating Van Electrical System.

(1)

Inspect ground spike (6), spike cable (4),

and chassis stud (1) for loose or damaged components.

(2)

Turn to connect switch box (12) to outside

power source.

(3)

Turn on ceiling light switch (switch 14).

(4)

Turn on receptacle switches (switches 1, 3,

4, 6, 7, 9, 10, 12, 13).

(5)

Turn on switch 5 if left heater (13) is to be

used. Turn on switch 8 if right heater (15) is to be used.

Refer to step f. for left and right heater operating

instructions.

(6)

Turn air conditioner switch if air condition-

ing unit (14) is to be used. Refer to step h. for air condi-

tioner operating instructions.

(7)

Turn on switch 2 if blackout switch (16) is

to be used. Refer to step i. for blackout operating

instructions.

(8)

Turn on emergency light switch (17) if out-

side power source fails.

f.

Operating Van Heaters.

2-27. OPERATION OF EXPANSIBLE VAN TRUCK (Contd)