TM 9-2320-209-34-2-3 FRAME 12 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. GO If drumshaft (1) is being replaced, the two taper pin holes must be drilled in the replacement shaft. Find out the location of the two tapered pin holes in the old shaft by measuring from the collar location on the drumshaft before it was taken out. Drill and taper-ream these holes for pins (2 and 3). Take out pin (4) from the old drumshaft (1) and press in new one. If either bearing (5) was removed from end of drum (6) press in new bearing. Slide collar (7) on drumshaft (1) against pin (4). Slide collar (8) on drumshaft (1). Put keyed end of drumshaft (1) through drum (6). Slide collar (9) on drumshaft (1) and hold in place with pin (3). Slide drum (6) against collar (9) and slide collar (8) against drum (6). Hold in place with pin (2). TO FRAME 13 18-124