TM 9-2320-209-10-1 f. Lowering the A-Frame and Preparing Truck for Travel after Side Operation. TOOLS : Pliers 1/2-inch wrench 5/8-inch wrench 1. Hook end of winch cable (1) to lashing ring (2). Take up slack in cable. (Refer to para 4-14 b.) 2. Unhook boom chains (3) and safety chains (4), then, slowly lower A-frame to ground. 3. Take off chain adapter (5), safety chains (4), and boom chain (3). GO TO FRAME 2 4-302