TM 9-2330-227-14&P
OPERATION - CONTINUED
PARKING
When parking truck tractor and semitrailer that will be unattended, set parking brake on truck
tractor, apply semitrailer handbrake control, and turn off engine before leaving cab. Block
semitrailer wheels with chock blocks (1). Block behind tires on uphill grade and in front of tires on
downhill grade. If parked on soft surface, place mud plates (2) under landing gear leg shoes (3)
BACKING
When possible, use an assistant as a ground guide to direct you while backing. Adjust rear view
mirrors before backing. When backing, the rear of semitrailer will move in opposite direction from
which front truck tractor wheels are turned. If wheels are turned to right, semitrailer will go left. If
wheels are turned to left, semitrailer will go right. If possible, and if room permits, always try to
is known as backing "sight"
back the semitrailer to the left by turning wheels to the right. This
side and should be used whenever possible (FM 21-305).
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