ARMY TM 9-2815-255-24
AIR FORCE TO 38G1-95-2
MARINE CORPS TM 2815-24/4
FIGURE 3-57. Removing Head Locating Screw (Typical)
Using a hammer, lightly tap advance screw hole plug (54, FIGURE 345) to loosen it, refer to FIGURE 3-58.
FIGURE 3-58. Advance Screw Hole Plug (Typical)
Remove advance screw hole plug (54, FIGURE 3-45) and seal (55), refer to FIGURE 3-59.