TM 9-2320-209-20-3-1 7-61. TRAILER ELECTRICAL COUPLING RECEPTACLE REMOVAL AND REPLACE- MENT. NOTE Trailer electrical coupling receptacle may or may not be mounted on a bracket. This task is the same for all trailer electrical coupling receptacles. TOOLS: 7/16-inch wrench (2) Soldering iron SUPPLIES: Solder PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. a. Removal. FRAME 1 1. Lift receptacle cover (1). Using 7/16-inch wrenches, unscrew and take off four nuts (2), four lockwashers (3), ground wire (4), four capscrews (5), and cover. 2. Pull coupling receptacle (6) with wiring harness (7) forward. GO TO FRAME 2 7-232