TM  10-3930-643-34 GENERAL  SUPPORT  BRAKE  MAINTENANCE.  (cont) 17-1. Power Cluster (S/N 2000 and below and 2904 and above). (Sheet 3 of 7) DISASSEMBLY  (cont) Spring is under pressure. Remove screws carefully to keep spring from becoming a projectile. 9. 10. 11. 12. 13. 14. Secure head (15) and shell (18) in press. Using a 9/16” socket and socket wrench  handle,  remove  eight screws (14). Release head (15) and remove from press. Remove  spring Remove  piston shell (18). (16) and boot (17). assembly (21) from Remove  and  discard  retainer  (19)  and cup (20) from piston assembly (21). Go to sheet 4 17-4

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