FUNCTION OF THE PUMP SYSTEM
The pump system provides the mechanical means to change the angle of the entire ramp bay
longitudinally, when connected to an interior bay, by raising or lowering the height of the ramp end of the
roadway to meet a given river bank elevation. In operation, two manually operated pumps supply pressure
to two cylinders, each connected to a yoke on the inner pontons. The cylinders act to push the yokes out
simultaneously at the bottom, and as the yokes are extended, the IRB-R hinges upward against the weight
of the adjoining IRB-I.
END OF WORK PACKAGE