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 261 of 481

TM 9-2320-272-10

2-156.4

Change 2

WARNING

Liquid surge results from liquid’s movement in partially-filled

tanks, which may result in loosing control of 5,000 gallon fuel

tankers causing vehicle damage, injury or death to personnel.

2.

Because of vehicle’s high center of gravity and liquid surge, start, slow down,

and stop smoothly. If a quick stop is necessary to avoid a crash, use controlled

braking.

3.

Know how much space is required to stop vehicle. More space may be

necessary to stop an empty tanker vehicle than a full tanker vehicle.

4.

Do not tailgate.Always maintain a safe distance from the vehicle ahead of

you. Drive far enough behind other vehicles to allow at least three vehicle lengths.

5.

Look far enough down the road to avoid unexpected obstacles and perform

necessary lan changes. At night, drive slowly enough to observe obstacles with

headlights, avoiding the need for sudden lan changes or abrupt stops.

b. Steering.

WARNING

Avoid steering more than necessary to clear an obstacle.

Oversteering may cause a skid, jackknife, or rollover. Failure to

comply may cause damage to vehicle or injury or death to

personnel.

1.

After clearing an obstacle, prepare to countersteer (turn steering wheel in

opposite direction) to recenter vehicle.

2.

Slow down before curves, then accelerate slightly through the curve. Posted

speeds for a curve may be too fast for tanker vehicle.

2-26.1. OPERATION OF M931/A1/A2 W/O ABS AND M932/A1/A2

W/O ABS TRACTORS WHEN TOWING M131 SERIES,

M967/A1, M969/A1/A2, AND M970/A1 5,000-GALLON

FUEL TANKERS (Contd)