TM 9-2350-256-10(f)To back off spade, move vehicle slowly in reverse and move SPADE operating lever to RAISE.(2)Operation.Spade is used to stabilize the vehicle when hoisting loads over 6 tons (5.4 metric tons). It willalways be used for winching operations.NOTEAuxiliary hydraulic system is used for spade operations only in an emergency.See paragraph 2-11c(2) for operating auxiliary hydraulic system. Notify unitmaintenance if spade cannot be raised to locked position.e.Boom Operation.WARNING·During any winching, hoisting, lifting, or boom raising operation all hatchesshould be closed for operator and crew safety. Do not allow operator or crewto operate vehicle with hatches open. Injury or death could result from cableor rigging failure under load.·At no time during M88A1 MRV boom operations are personnel required to bepositioned on engine deck of vehicle. The "A" shape of boom support latch(see para. 2-11d(6)) is designed to guide hoist winch cable out of the path ofretracting boom.(1)General.Boom is powered by main or auxiliary hydraulic system. Driver controls boom from crewcompartment.2-133
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