b. Loading/Unloading Scissored Bridge to/from a Lowbed Semitrailer
(M172 or M172A1) - CONT
Coordinating the movement of these two cylinders lessens the pressure on the trailer and
reduces the chance for blowing out the trailer tires.
(e) Ensure that the bridge is properly stowed on the launcher and locked in position on its
(f) Remove and stow the chain holding the bridge's tie-rod ends together.
(g) Remove and stow the timbers from the trailer bed, the wheel chock blocks, and the chain
binders prior to moving the trailer.
(h) Refer to paragraph 2-10a(2)(b) thru 2-10a(2)(c) for unloading procedures.
c. Loading/Unloading of the Scissored Bridge to/from a Flatbed Semitrailer
(MS71 or MS72).
This Task Covers:
General Mechanics Tool Box,
Timbers, two 8 x 8 in. x 3-4 ft.
Chain, 3/8 in. min., ten ea.
Chain binders, ten ea.
Chock blocks, two ea.
Three to five (min)
The loading/unloading operation of the bridge is extremely dangerous. Essential personnel
should always take precautions when working around the bridge and associated equipment.
Non-essential personnel should always stay clear of the loading/unloading operation. Be
aware of what is going on around you at all times and have a route of escape.
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