TM 9-2320-364-102-831Engine speed must be at idle before using hydraulic selectorswitch, or damage to equipment may result.(13)Set hydraulic selector switch (13) to MAN H.A.Check for overhead power lines or other obstructions beforeattempting LHS operation. LHS reaches a system height of17 ft. 2 in. (5.22 m) without ISO container. Serious injury ordeath to personnel could result from contact with electricalpower lines.(14)Move joystick (14) to UNLOAD until hook arm (15) is above spare tire (1).