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 316 of 481

TM 9-2320-272-10

2-207

a.

General.

(1)

Refer to paragraph 2-13 for cold weather starting instructions.

(2)

If vehicle is equipped with arctic winterization kits, refer to paragraphs

2-44 and 2-45 for description and operating instructions.

(3)

Operating on snow or ice requires use of tire chains on forward-rear axle

tires. Refer to FM 21-305 for installation of tire chains.

CAUTION

Attempting operation with only one driving wheel equipped with

tire chain may result in damage to tire and/or power train.

NOTE

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

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

(4)

If tire chains are not available, deflate tire pressure to 25 psi (172 kPa).

Reinflate to normal pressures after operating in snow (table 1-10).

b.

Driving Vehicle.

(1)

Remove chocks (7) from vehicle wheels if used.

(2)

Place transmission selector lever (8) in 1-5 (drive) and transfer case shift

lever (9) in low range. Slowly accelerate without causing wheels to spin or engine to

race. Place transfer case shift lever (9) in high range when under way.

2-33. OPERATING IN SNOW