TM 10-3930-659-20 10-11.    RIGHT BRAKE VALVE-TO-REAR BRAKE HOSE AND FITTINGS REPLACEMENT (Con't). 2. Hold boot (2) of right brake pedal (1) with hand and    pump    left    brake    pedal    (4)    75    times. Release boot. 3. Remove  hose  (8)  and  preformed  packing  (9) from elbow (10).  Discard preformed packing. 4. Remove elbow (10) and preformed packing (11) from  rear  differential  (12).    Discard  preformed packing. 5. Remove  hose  (8)  and  preformed  packing  (7) from  tee  (5)  on  right  brake  valve  (6).    Discard preformed packing. 10-33