TM 5-5420-278-10
0010 00
0010 00-4
RAMP BAY CONTROLS AND INDICATORS (Contd)
LOWER LOCK-DRIVE — There is one lower lock-drive assembly on the
yoke of the right inner ponton at the connecting end of the IRB-R. It is
manually operated from the roadway deck by placing the socket end of a
T-wrench (refer to Item 2, WP 0070 00) on the hex-head of the jackscrew, and
turning the screw clockwise. The top of the jackscrew will be 3/4 in. (1.9 cm)
below the top surface of the roadway when the lower lock-drive pin is fully
engaged. When the jackscrew is fully extended or fully retracted, it must be
backed off one full rotation using the T-wrench.
G
HEX-HEAD, JACKSCREW
ROADWAY DECK,
RIGHT INNER
PONTON
YOKE
CONNECTING EYE
LOWER LOCK-DRIVE ASSEMBLY
LOWER LOCK PIN
JACKSCREW
G
