TM 9-2350-267-10
DRIVING OVER ROUGH, SOFT OR HILLY TERRAIN
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WARNING
l To avoid vehicle damage and possible injury, approach
obstacle head-on.
l Warn crew members to brace themselves.
l Hatches, doors and stowed items must be secured be-
fore proceeding over obstacle.
Crossing a Ditch, Hole, or Trench. Apply brake and shift to low (1 (st) gear.
When vehicle reaches bottom and starts to climb, depress accelerator for
power needed to climb free of obstacle.
Driving Over Barrier. As vehicle approaches obstacle (21 inches maximum
vertical height), release accelerator, apply brake, and shift to lower (1st)
gear. Apply full power when starting over obstacle. Release accelerator
pedal upon reaching crest, and permit vehicle to settle over it. Balance vehi-
cle forward of the crest to begin descent. When front of tracks touch ground,
add power and move on.
Starting Vehicle on an Upgrade. When vehicle is headed uphill, apply power
before releasing brake to avoid rolling backward.
CAUTION
l Do not use engine as braking source for a iong period of
time. Transmission overheating will result from such
practice.
l Using service brakes too long will burn them out. Re-
lease and apply brakes occasionally.
Descending Steep Grades. Shift transmission into 1st gear and apply brake
as necessary to slow vehicle.
5. Driving In Loose Sand, Dirt, or Rocks. Shift into 1st gear and make series
of short, gradual turns. This action will allow debris to be expelled from
track.
CAUTION
Making sharp turns in 1st gear may cause a track to be thrown.
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