TM 5-5420-278-100003 000003 00-12IRB ASSEMBLYDIFFERENCE IN CONFIGURATION FROM IFBLifting lug, front andBoth fixedrearBilge outlets1. Redesigned outlets for draining folded bay2. Redesigned outlets for pumping out unfolded bayRailingNew designStowage box and lidIntegrated in outer ponton; lid even with top of deckWalkway ramp plates1. New design including fixing and securing on ponton2. Provision for installation of one additional rampplate on each pontonPUMP SYSTEMCylinder1. New design having increased stroke and modified bearing2. Modified pin for cylinderPump1. New internal design2. Larger fluid reservoir3. Redesigned controls4. Modified access cover and revised operating instructions data plate5. Compensation line between fluid reservoirs6. Redesigned hose guides including protection loomINTERIOR BAYInner ponton1. Redesigned ends having integrated access holesfor main couplings2. Steel main couplingsOuter ponton1. Redesigned; revised bow shape2. Raised splash plate3. Redesigned cleats4. Reinforced deck5. Redesigned load receiving recesses for redesigned rafting brackets, air-transport, and load retaining system6. No unfolding mechanism lever box7. No retaining cable fixing strutTable 1. Differences Between IRB and IFB (Contd).DIFFERENCES BETWEEN IRB AND IFB (Contd)
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