TM 5-5420-278-10
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0028 00-2
SECURING RAMP BAY AFTER LAUNCH (Contd)
WARNING
Do not place fingers under transverse upper couplings
when closing them, or serious injury to personnel may
result.
The transverse upper couplings and ponton swivel
hooks must be engaged prior to performing bridge or
rafting operations; the weight of a vehicle crossing will
cause the bay to fold up and may result in damage to
equipment or injury or death to personnel.
NOTE
Use the roadway tool and crowbar to close the gap
between inner pontons when upper couplings cannot be
fully closed in receptacle blocks.
f. Close two transverse upper couplings (1) by folding each lever so that it
engages in receptacle block (2) of adjacent inner ponton.
NOTE
As viewed from front of bay (approach ramp end),
engage the right-hand ponton swivel hooks by turning
shafts clockwise, and the left-hand side
counterclockwise.
g. Using T-wrench, engage one swivel hook at both ends of both inner pontons
by turning shaft (3) until indicator and slot in hexhead point at outer ponton.
h. Using T-wrench, turn lower lock-drive to ensure jackscrew (5) moves freely
and lower lock-drive pin (4) is fully retracted.
1
1
2
4
3
5
2
CONNECTING TOOL
RAMP BAY (UNFOLDED)
CROWBAR
T-WRENCH
END OF WORK PACKAGE
