TM 9-2320-209-20-3-3 18-66. 24-VOLT DOME LIGHT LAMP REMOVAL AND REPLACEMENT (TRUCKS M109A2, M109A3, M185A2, AND M185A3). TOOLS: Flat-tip screwdriver SUPPLIES: None PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. a. b. Preliminary Procedures. (1) Turn off 24-volt dome light circuit breaker. Refer to TM 9-2320-209-10. (2) Disconnect battery ground cable. Refer to Part 1, para 7-58. Removal. FRAME 1 1. Using screwdriver, unscrew and take out lockscrew (1) while holding light door (2) up. 2. Open light door (2) and let it hang open. 3. Push lamp (3) in, turn it to left, and take out lamp. END OF TASK 18-363