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

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TM 9-2320-272-10

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Change 2

WARNING

Operators must drive at reduced speeds and be prepared to meet

sudden changes in road conditions and traffic speeds. Maintain

safe stopping distances. Pump brakes gradually when stopping

vehicle on ice or snow. Sudden stops will cause vehicle wheels to

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

may result in injury or death.

NOTE

This warning applies to vehicles not equipped with antilock brake

system (ABS). To stop a vehicle equipped with ABS, apply firm

steady pressure to brake pedal to bring vehicle to a gradual stop.

Do not pump brakes on a vehicle equipped with ABS when

stopping. ABS will automatically release wheels that are locking

and apply pressure to the other wheels.

CAUTION

If vehicle gets stuck on ice or in snow, do not rock vehicle by

shifting rapidly between reverse and forward gears. This can

cause power train damage.

NOTE

Use tire chains on forward-rear-axle-tires. For M939 series

vehicles place chains on outside tires. Remove as soon as mission

allows.

(3)

If rear end skidding occurs:

(a)

Turn steering wheel (1) in direction of the skid.

(b)

Let up on accelerator pedal (2) and apply brake pedal (3).

2-33. OPERATING IN SNOW (Contd)

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