TM 9-2320-209-20-3-2 Section VIII. TRAILER BRAKE CONNECTIONS 13-37. QUICK-DISCONNECT COUPLING HALF REMOVAL AND REPLACEMENT. TOOLS: 15-inch adjustable wrench (2) Cross-tip screwdriver (Phillips type) SUPPLIES: None PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. a. Preliminary Procedures. (1) Vent air system. Refer to para 13-20. (2) Remove dummy coupling. Refer to TM 9-2320-209-10. b. Removal. 1. Using screwdriver, unscrew and take out two screws (1). Take off cover (2). 2. Using adjustable wrenches, hold nut (3) and unscrew and take off quick- disconnect coupling (4). END OF TASK 13-267