TM 9-2520-246-34-1 c. Countershaft Assembly. FRAME 1 Soldier A 1. 2. Soldier B 3. Soldier A 4. 5. GO TO FRAME Take off snapring (1). Set up countershaft assembly (2) in hydraulic press as shown. Working from under press, hold bottom of countershaft (2) to keep it from falling when drive gear (3) is pressed off. Tell soldier A when ready. Press out countershaft (2). Take out key (4). 2 2-32