TM 9-2330-381-14
2-9.
HANDCRANKS
WARNING
Before performing any maintenance on the platform, lower the front and rear
support legs or injury to personnel may result.
When lowering the support legs, make sure that feet and hands are clear of the
support leg foot as it nears the ground or serious injury to personnel may result.
When lowering or raising the support legs, always install the retaining pins or
serious injury to personnel may result.
FRONT LEG SUPPORT HANDCRANK (1). The front support legs each contain a single speed handcrank which
operates an internal winch attached to a lifting strap. The handcrank (1) is used to manually raise and lower the lower
shaft and foot of the support leg. A retaining pin is used to lock the lower shaft into one of four preselected height settings
(holes). The bottom hole of the lower shaft is used to stow the lower leg and foot during transport. The retaining pin is
installed from the outboard side of each support leg. The handcrank (1) for the curbside support leg is located on the
inboard side of the leg, while the handcrank (1) for the streetside support leg is located on the outboard side of leg. The
streetside support leg also contains a step which provides personnel access to the platform. To lower and secure either
support leg, rotate the handcrank (1) counterclockwise until the desired retaining pin hole in the lower leg is alined with the
hole in the upper housing of the support leg, and install the retaining pin. To raise either leg, rotate the handcrank (1)
clockwise sufficiently to relieve tension on the retaining pin, remove the pin and continue cranking in a clockwise direction
until desired selected height is reached, and insert the retaining pin.
2-13
