TM 9-2320-209-20-3-1 7-19. FRONT SERVICE HEADLIGHT ASSEMBLY ADJUSTMENT. TOOLS: Flat-tip screwdriver 50-foot tape measure Carpenter’s square SUPPLIES: Chalk, SS-C-266F String PERSONNEL: Three EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. 1. Using tape measure and chalk, draw line (1) 25 feet from and parallel to vertical wall (2). 2. Start unloaded truck. Refer to TM 9-2320-209-10. Move truck so that head lights (3) are parallel with and directly above line (1). The center line of truck (4) will be at right angle (90°) to wall (2) as shown. 3. Stop engine and set handbrake. Refer to TM 9-2320-209-10. GO TO FRAME 2 7-95