TM 10-3930-669-34 (10) Remove   two   screws   (27),   lock   washers (28), washers (29), and copper  wires  (30) from switch (18).  Discard lock washers. (11) Remove   two   screws   (31),   lock   washers (32), and switch (18) from commutator (8). Discard lock washers. (12) Remove     nut     (33),     lock     washer     (34), washer  (35),  screw  (36),  and  spacer  (37) from     commutator     (8).          Discard     lock washer. (13) Remove     nut     (38),     lock     washer     (39), washer (40), bushing (41), and screw (42) from     commutator     (8).          Discard     lock washer. (14) Remove     nut     (43),     lock     washer     (44), washer   (45),   mount   (46),   rail   bar   (26), washer (47), and spacer (48) from commutator (8).  Discard lock washer. 7-17