TM  10-3930-643-34 BRAKE  TROUBLESHOOTING  AND  MAINTENANCE. 8-3. Parking  Brake  Air  Cylinder.  (Sheet DISASSEMBLY 10 2. 3. 4. 5. 6. 7. 8. Spring is under pressure from plate. Use suitable press to release  spring. Failure to follow this procedure could result in SEVERE INJURY. If you are  injured,  seek medical aid immediately. Position  air  cylinder  (1)  securely  in press. 2 of 5) Using a 1/2”   socket and socket wrench handle, remove eight screws (2). Release press slowly to relieve pressure on spring (3). Remove air cylinder (l). Remove spring (3) and plate (4). Using a flat tip screwdriver, remove four screws (5) and plate (6). Using a 7/8”   open end wrench, remove nuts (7 and 8). Remove shaft (9). Go to sheet 3 8-7

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