TM 5-3610-287-10
1-8.
GENERAL (CONT)
a. Expanding Side System. Each side wall of the Section contains an
expanding portion to increase the work space inside the Section. Both
sides of the Section must be expanded before the Section is operational.
Leveling jacks on the semitrailer chassis are used to level the
Section before expanding the sides. Inclinometers on each corner of the
Section indicate when the Section is level. For operation of the
semitrailer chassis, refer to TM 5-2330-305-14.
The operator expands and retracts the expanding sides by turning a
handcrank which drives the expanding side drive mechanism. The drive
mechanism consists of a vertical shaft, gear box, and horizontal shafts.
The drive mechanism gears mesh with four rows of gear teeth mounted at the
top and bottom of each expanding side.
The folding floor inside each expanding side folds up against the side
wall when sides are retracted and folds down when sides are expanded. A
handwinch assembly for each folding floor allows for raising and lowering
of folding floors by attaching a cable to the lifting eye in the folding
floor and turning the handcrank.
Inner and outer rubber seals between each expanding side and the main
Section body prevent wind and water from entering the Section around the
expanding sides.
1-14