TM 5-3805-262-343-12, AIR BRAKE SYSTEM MAINTENANCE (CONT)b. Service Brake Treadle and Valveand Declutch Treadle and Valve (Cont).DISASSEMBLY OF BRAKE TREADLE(1)(2)(3)(4)(5)Remove cotter pin (6) from roller pin(7).Remove roller pin (7) and roller (8)from brake treadle.Remove and discard boot (9) from plunger(10).Remove plunger (10) from mounting plate(12).Remove stop button (11) from mounting plate(12).LEGEND6. Cotter pin7. Roller pin8. Roller9. Boot10. Plunger11. Stop button12. Mounting plateDISASSEMBLY OF BRAKE VALVE (SHEET 1 OF 2)NOTESpring (14) exerts pressure on piston (22). Do not remove retainer (13)until downward pressure is applied to piston to offset spring pressure.(1)Using your thumb, apply downward pressure to piston (22) and removeretainer (13). Use screwdriver to disengage retainer tabs from lip ofvalve body (33).3-442
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