TM 10-3930-671-24 (b) To install brake light switch (14), proceed as follows: 1 Apply sealing compound to threads of brake light switch (14). 2 Install brake light switch (14) on block (19). 3 Move cover (15) and install two wires (18) on brake light switch (14) with two screws (16) and lockwashers (17). 3-61