TM-9-2320-273-10
TRUCK, TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER
TECHNICAL MANUAL; OPERATOR’S MANUAL
DECEMBER 2012
TM-9-2320-273-10 - Page 256 of 452
SNOW AND ICE DRIVING - CONTINUED
9. If you come to a difficult stretch of road, stop and inspect it carefully before
driving on it. Select the transmission gear most likely to allow vehicle over that
stretch of road and lock differential.
10. If tires start spinning, stop, back up, and try again. If necessary, rock out by
locking the differential, shifting to forward gear and accelerating lightly. Shift into
reverse when vehicle’s forward motion stops. Repeat alternate shifting and
acceleration until vehicle can use the momentum to rock out of the slippery area.
Avoid spinning the tires and do not exceed 800–900 engine rpm.
END OF TASK
STOPPING
WARNING
Do not use engine retarder on slippery road surfaces. Using
engine retarder on wet, icy, or snow covered roads may
result in loss of vehicle control. Failure to comply may result
in damage to equipment and injury to death to personnel.
Seek medical attention in the event of an injury.
1. Ease up on accelerator, leaving vehicle in gear already selected.
2. Apply brakes evenly to slow vehicle, and gradually pump brakes to avoid
skidding.
3. Avoid sudden braking on slick roads which may cause vehicle to skid and trailer
to jackknife.
END OF TASK
PARKING
1. When parking vehicle on an icy, slushy, wet, or muddy surface, place boards,
brush, or other material underneath tires to provide traction. This guards against
tires freezing to the ground or becoming pocketed in ice, and provides traction
when vehicle is started and moving again.
2. Block tires and leave transmission control lever in neutral (N) rather than setting
parking brake.
END OF TASK
END OF WORK PACKAGE
TM 9-2320-273-10
0018
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