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 260 of 481

TM 9-2320-272-10
Change 2
2-156.3
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)
WARNING
• Operation of 5,000-gallon semitrailers (M131 series,
M967/A1/A2, and M970/A1) can carry 5,000 gallons of fuel
(but not water) when towed with M931/A1/A2 or M932/A1/A2
tractors. This applies to operating on prepared surfaces, such
as paved, gravel, or dirt roads. Failure to comply may result
in damage to vehicle or injury or death to personnel.
• On cross-country terrain, payload is limited to 3,000 gallons
of fuel if the prime mover is an M931/A1/A2 or M932/A1/A2
series 5-ton tractor. Failure to comply may result in damage
to vehicle or injury or death to personnel.
1.
When making a normal stop, push brake pedal down, controlling pressure so
vehicle comes to a smooth and safe stop. For an emergency stop, brake so vehicle
can be steered and controlled to maintain a straight line. Use one of the following
methods.
WARNING
If wheels lock up, remain off of brakes until wheels begin
turning again. It may take approximately one second for wheels
to begin turning. Failure to comply may cause vehicle to stray
off course of travel, resulting in damage to vehicle or injury or
death to personnel.
(a) Controlled Braking.
Without turning steering wheel, apply brakes as
hard as possible without locking wheels. If large steering adjustments are
necessary, or wheels are sliding, release brakes. Brake again when tires gain
traction.
(b) Stab Braking.
Apply brakes are hard as possible. Release brakes when
wheels lock up. Once wheels begin turning, apply brakes fully again.


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