c. Repair of Inner Manhole Cover. (1) Disassembly. TM 9-2320-209-20-3-3 FRAME 1 1. Using pliers, pull out and throw away four cotter pins (1). 2. Take out two pins (2) and five flat space washers (3). Pull apart yoke (4) from cover (5). 3. Using 11/16-inch and 15/16-inch wrench, unscrew and take out two eyebolts (6) from nut (7). END OF TASK 18-345