TM 9-2350-256-10(3)Operation.(a)Prepare main or auxiliary hydraulic system for operation (see para. 2-11c).CAUTION·Never use hoist winch with less than three wraps on drum.·Minimum engine speed for winching operations is 1500 rpm. Maximum speedis 1800 rpm.(b)Rig boom for a single, two or four-part line (see para. 2-11e).1.Single part line-12,500 lb (5,670 kg) max. load.2.Four-part line-50,000 lb (22,680 kg) max. load.(c)Use spade (see para. 2-11d) or lockout blocks (see para. 2-11g) for loads over 6 tons (5.4 metrictons).(d)Move HOIST WINCH SHIFT lever (1) toLOW or HIGH.NOTEIf shift lever will not engage in low or high,move HOIST WINCH operation lever (2) toLOWER while keeping pressure on shiftlever.(e)Move HOIST WINCH operating lever (2) to LOWER or RAISE.2-143
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