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 208 of 481

TM 9-2320-272-10

Change 2

2-107

l.

To drive in reverse:

WARNING

Do not back up without a ground guide. Failure to do this may

result in damage to vehicle, injury, or death.

(1)

Stop vehicle (para. 2-16).

CAUTION

Do not back up with transfer case shift lever in low range.

(2)

Place transmission selector lever (3) in R (reverse) (11).

(3)

Have ground guide direct backup operation.

a.

Release accelerator pedal (7).

NOTE

This warning applies to vehicles not equipped with ABS. To stop a

vehicle equipped with ABS, perform step C.

.

WARNING

.

Pump brakes gradually when slowing or stopping vehicle on ice,

snow, or wet pavement. Sudden stop will cause vehicle wheels to

lock, engine to stall, and loss of power steering. Failure to pump

brakes may result in injury or death.

b.

Apply brake pedal (8) to bring vehicle to a gradual stop.

.

WARNING

.

Do not pump brakes that are locking on a vehicle equipped with

ABS when stopping. ABS will automatically release wheels that

are locking and apply pressure to the other wheels. Failure to do

so may result in damage to vehicle or injury or death to personnel.

c.

Apply firm steady pressure to brake pedal(s) to bring vehicle to a gradual

stop.

d.

Move transmission selector lever (3) to N (neutral) (9).

NOTE

Park on hard surface if possible.

e.

Apply parking brake by pulling up on parking brake lever (5).

2-16. STOPPING THE VEHICLE AND ENGINE

2-15. PLACING VEHICLE IN MOTION (Contd)