TM 9-2520-246-34-1 k. Handbrake Brake Drum Assembly. FRAME 1 1. Tap four capscrews (1) into handbrake brake drum (2). 2. Put brake drum shield (3) and companion flange (4) into place. 3. Put on two 5/16-inch nuts (5). 4. Tap on shield (6). 5. Take off two 5/16-inch nuts (5). END OF TASK 2-254