TM 5-3810-306-10Section II - EQUIPMENT DESCRIPTIONEQUIPMENT CHARACTERISTICS, CAPABILITIESAND FEATURESThe crane is fully self-contained. All functions are eitherelectrically or hydraulically controlled and hydraulicallyoperated. Main functions include:a.Raising and lowering the boom.b.Extending and retracting the boom.c.Raising and lowering loads with thehoist(s).d.Swinging the boom.e.Extending and retracting theoutrigger beams and stabilizers.A diesel engine provides drive power for the hydraulicpumps and also drives a compressor and an alternatorwhich supply air and electrical power for control,accessory and lighting systems. The engine alsoprovides power to the axles through a remote mounted,six-speed (forward and reverse) transmission to drive thecrane. Planetary drive axles provide four-wheel drive.Axle steering is accomplished through hydraulicsteer cylinders.The carrier frame features an integral fifth wheel, towhich the rear axle is mounted, to allow the axle to pivot.Axle pivot lockout is automatic when the superstructurerotates more than five degrees in either direction from itsstraight ahead position. The carrier frame has towinglugs located front and rear.Air and hydraulic flow and electrical power aretransferred from the carrier frame to the superstructureby swivels located at the center of rotation. Hydrauliccylinders activate the elevation, telescope and outriggersystems. The hoist and swing systems are driven byhydraulic motors.The superstructure is capable of 360- degree continuousrotation in either direction. The crane is equipped with atwo-section boom. Lifting is provided by a main hoistand an auxiliary hoist.1-2
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