TM 10-3930-669-20 7-30.  MAST LIGHT REPLACEMENT (CONT). (2) Remove nut (3), screw (4), two lock washers (5), and light assembly (6) from bracket (7).  Discard lock washers. (3) Remove light wire (8) from conduit (9). (4) Remove nut (10), lock washer (11), screw (12), and  bracket  (7)  from  mast  (13).    Discard  lock washer. b.  Installation. (1) Install bracket (7) on mast (13) with screw (12), lock washer (11) and nut (10). (2) Install light wire (8) in conduit (9). (3) Install light assembly (6) on bracket (7) with two lock washers (5), screw (4), and nut (3). (4) Connect connector (1) on light connector (2). NOTE Follow-on Maintenance: •   Remove wheel chocks (TM 10-3930-669-10). END OF TASK 7-64