TM  10-3930-643-34 BRAKE  TROUBLESHOOTING  AND  MAINTENANCE.  (cont) 8-3. Parking Brake Air Cylinder. (Sheet 3 of 5) DISASSEMBLY  (cont) NOTE Remove nuts from shaft only if inspection  proves  replacement  of nuts or shaft is necessary. 9. Remove nuts (10 and 11) from shaft (9). 10. Remove piston (12). 11. Remove and discard felt (13) and ring (14). 12. Remove  and  discard  ring (15)  and bushing (16). Go to sheet 4 8-8

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