TM 5-3610-287-24
1-9. GENERAL (CONT)
a. Expanding Side System. The expanding side system is operated with a
handcrank which drives the gears and shafts to expand and retract the
expanding sides.
The handcrank drives a shaft connected to a bevel gear drive. The
bevel gear drive transfers energy to two other bevel gear drives and two
right angle speed reducers. Synchronized operation of the bevel gear
drives and right angle speed reducers allows easy operation and equal
extension of sides. Vertical and horizontal shafts transfer energy from
the handcrank to the bevel gear drives and then to the right angle speed
reducers. The expanding side can be adjusted by disengaging the retainer
block and moving the expanding side in or out. Handwinches allow the
folding floors to be raised and lowered by one person.
b. Electrical System. The electrical system controls and distributes
electrical power throughout the Section. Two hundred and eight volt,
three-phase power enters the Section through the main power cable at the
power entry panel. From the power entry panel, power is sent through
conduit up to the main power switch, which controls all power coming into
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