TM 5-5420-278-10
0010 00
0010 00-2
RAMP BAY CONTROLS AND INDICATORS (Contd)
OUTER PONTON LOCKS — There is a front swivel hook and a rear swivel
hook located on each inner ponton. Both are engaged to secure the outer
ponton in the unfolded position by placing the socket end of a T-wrench (refer
to Item 2, WP 0070 00) on the hex-head of each swivel hook shaft, and turning
it until the position indicator and slot in hex-head point straight at the outer
ponton. The position indicator is not visible when the swivel hook is
completely disengaged.
UPPER COUPLING, LONGITUDINAL — There are two identical upper
couplings and receptacle blocks at the connecting end of the IRB-R. The upper
coupling consists of a spring loaded lever mounted in a receptacle block on
each inner ponton. A receptacle block is adjacent to each upper coupling. The
upper coupling is used for bay-to-bay connection; when two bays are in
position to be joined longitudinally, the two upper couplings on each bay are
manually closed by placing them in the receptacle blocks of the opposite bay.
UPPER COUPLING, TRANSVERSE — There are two identical upper
couplings, each located on the inner pontons, that consist of a spring loaded
lever mounted in a receptacle block. When the bay is unfolded, both upper
couplings are manually closed by placing them in the opposite receptacle
blocks of the adjacent inner ponton. They are both opened prior to IRB-R
retrieval; this is essential prior to lifting the bay to prevent damage.
F
E
D
RAMP BAY (UNFOLDED)
FOLDLOCKS,
OPEN POSITION
FRONT LIFTING
LUG (REAR LIFTING
LUG NOT SHOWN)
TRAVEL LATCH
LEVER, OPEN
POSITION
TRAVEL LATCH
LOCATING
RECEPTACLE
