TM 10-3930-643-34 FRAME AND TOWING ATTACHMENTS MAINTENANCE. (cont) 10-2. Frame Hinge Pin and Frame Assembly. ADJUSTMENT  (cont) (Sheet  5 23. Using a 15/16" socket and socket wrench  handle,  install  retainer  plate (3), two washers (2) and bolts (1). Retainer plate (3) can be turned over if it does not aline with nut (4). If retainer plate (3) still does not aline with nut (4), do not turn more than 30 degrees. NOTE The following step is the proce- dure used to acquire 0.0625 inch gap between shafts lock plates and frame  ears. 24. Using  bottle  jacks,  support  frames  to allow removal of shaft (15) or shaft (11). Do not remove both shafts from frame at the same time. If both shafts  need  adjustment,  remove  one at a time. NOTE The  following  steps  are  for adjusting  lower  hitch  shaft. Adjustment  of  upper  hitch  shaft is identical, except as noted. of  13) 25. 26. 27. Remove  steering  linkage  before removal  of  upper  hitch  shaft,  refer to TM 10-3930-643-20. Using a 15/16" socket and socket wrench handle, remove two bolts (1), washers (2) and retainer plate (3). Using a 3-1/16" socket and socket wrench handle, remove nut (4). Go to sheet 6 10-10