TM 9-2320-386-10 2-93 .WARNING. Vehicle will become charged with electricity if A-frame contacts or breaks high voltage wire. Do not leave vehicle while high voltage line is in contact with A-frame or vehicle. Signal nearby personnel to have electrical power turned off. Failure to do so may result in injury or death to personnel. NOTE A-frame kit is installed and rigged by maintenance personnel. (2) Maneuver vehicle into position for operation. (3) Park vehicle and apply parking brake. d. Operating A-frame. Operate front winch to raise, lower, or hold load. Refer to para. 2-18. 2-41. OPERATION OF A-FRAME KIT (Contd) 2-42. OPERATION OF AIRBRAKE (TRAILER) KIT a. General. The airbrake (trailer) kit is installed on vehicles hauling trailers or artillery equipped with airbrakes. It is used when heavy payloads are to be hauled and separate braking of the trailer is desired. b. Coupling Trailer to Vehicle. NOTE • Refer to appropriate trailer TM for complete trailer operation procedures. • Attaching yoke of trailer or artillery load to pintle hook requires two or more crewmembers, depending on size and weight of load. 2 3 4 1