TM 9-2320-209-20-3-1 7-60. TRAILER CONNECTOR ELECTRICAL CABLE REMOVAL AND REPLACEMENT. TOOLS: None SUPPLIES: None PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. a. Removal. FRAME 1 1. Pull off connector (1) from receptacle (2) on truck. 2. Pull off connector (3) from receptacle (4) on trailer. 3. Take off electrical cable (5). END OF TASK 7-230