TM 10-3930-669-34 13-2.      MAST   ASSEMBLY   REPLACEMENT/REPAIR (CONT). (3) Remove four fittings (7) from manifold (8). (4) Remove two screws (9), lock washers (10), and manifold  (8)  from  pivot  arm  (6).    Discard  lock washers. (5) Remove elbow (11) from tee (12). (6) Remove tee (12) from elbow (13). (7) Remove lock nut (14) and elbow (13) from mast assembly (15).  Discard lock nut. (8) Remove lock nut (16) and fitting (17) from mast assembly (15).  Discard lock nut. (9) Remove lock nut (18) and elbow (19) from mast assembly (15).  Discard lock nut. (10) Remove elbow (20) from tee (21). (11) Remove tee (21) from fitting (22). (12) Remove lock nut (23) and fitting (22) from mast assembly (15).  Discard lock nut. 13-4