TM 10-3930-669-20 7-18.  BRAKE SWITCH REPLACEMENT (CONT). b.  Installation. (1) Position  brake  switch  (7)  on  dash  frame (5) and tighten nut (8). (2) Connect two wires (6) on brake switch (7). NOTE Install cable ties as required. (3) Install instrument panel (2) on dash frame (5) with washer (4) and screw (3). (4) Install four screws (1) on instrument panel (2). c.  Adjustment. (1) With  pedal  up,  adjust  switch  (1)  position to  .06  inch  (1.6  mm)  clearance  between brake  pedal  actuating  tab  (2)  and  metal housing  of  switch  (3)  when  switch  is  held closed. (2) If  proper  adjustment  cannot  be  obtained, adjust brake pedal (Para 11-6). NOTE Follow-on Maintenance: • Close  cab  door  (TM  10-3930-669- 10). • Connect batteries (Para 7-48). • Remove wheel chocks (TM 10-3930-669-10). END OF TASK 7-40