TM 9-2320-209-20-3-1 7-47. SERVICE AND BLACKOUT CLEARANCE LAMPS REMOVAL AND REPLACEMENT. NOTE This task is the same for service and black- out clearance lamps on all trucks. TOOLS: Cross-tip screwdriver (Phillips type) SUPPLIES: None PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set, light switch in OFF position. a. Removal. FRAME 1 1. Using screwdriver, unscrew and take out two screws (1). 2. Take off light door (2) with lens (3). 3. Push lamp (4) in and turn it 1/4 turn to left. Take out lamp. END OF TASK 7-179