TM 10-3930-659-34 5-9.  TRANSMISSION CONTROL VALVE MAINTENANCE (Con’t). 12. Remove two screws (63) and cover (62) from valve block (31). 13. Remove preformed packing (61) from cover (62).  Discard preformed packing. 14. Remove retaining ring (64), washer (65), shaft seal (66), and washer (67) from cover (62).  Discard retaining ring and shaft seal. 15. Remove clip (59) from piston (58) and valve block (31), and remove spool (60) and piston from valve block. 16. Remove two screws (68) and clutch cutoff valve (69) from valve block (31). 17. Remove  breather  (70)  from  clutch  cutoff  valve (69) 5-67