Paragraph 5-47 Paragraph 5-13 TM   10-3930-643-20 ELECTRICAL  SYSTEM  TROUBLESHOOTING  AND  MAINTENANCE.  (cont) 5-27. Light   Switch.    (Sheet  1  of  3) This   task   covers: a.   Removal b . Cleaning/Inspection c . I n s t a l l a t i on INITIAL  SETUP Tools Tool   Kit,   General   Mechanic’s Automotive NSN   5180-00-177-7033 Materials/Parts Cleaning   solvent   P-D-680 (App.   C,   Item   2) Clean   cloth   (App.   C,   Item   10) Small  tag  (App.  C,  Item  12) Torques Except  for  special  torques  shown, all   fasteners   are   tightened   to   a standard  torque. Refer   to Appendix  E. EQUIPMENT  CONDITION ------- - G O  to   sheet   2 5-150 .