TM 5-5420-278-100003 000003 00-13IRB ASSEMBLYDIFFERENCE IN CONFIGURATION FROM IFBLower lock-driveNoneUpper coupling,Locking recesses removable and made of steellongitudinalUpper coupling,NonetransverseTravel latchNoneFoldlockNoneOuter ponton lockNew design; lock is engaged/disengaged from deckUnfolding mechanism1. Redesigned unfolding lever/stabilizer and newdouble hinge connector2. Rigid lifting lug; two per bayBilge outlets1. Redesigned outlets for draining folded bay2. Redesigned outlets for pumping out unfolded bayLifting lugsCables at both ends of bayHandrailNew designTable 1. Differences Between IRB and IFB (Contd).DIFFERENCES BETWEEN IRB AND IFB (Contd)
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