TM 5-5420-278-24&P0005 000005 00-2FUNCTION OF THE PUMP SYSTEMThe pump system provides the mechanical means to change the angle of the entire ramp baylongitudinally, when connected to an interior bay, by raising or lowering the height of the ramp end of theroadway to meet a given river bank elevation. In operation, two manually operated pumps supply pressureto two cylinders, each connected to a yoke on the inner pontons. The cylinders act to push the yokes outsimultaneously at the bottom, and as the yokes are extended, the IRB-R hinges upward against the weightof the adjoining IRB-I.END OF WORK PACKAGE
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