TM   10-3930-643-20 ELECTRICAL  SYSTEM  TROUBLESHOOTING  AND  MAINTENANCE.  (cont) 5-33. Master   Disconnect   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 Materials/Parts Tool   Kit,   General   Mechanic’s Detergent   (App.   C,   Item   16) Automotive Clean   cloth   (App.   C,   Item   10) NSN   5180-00-177-7033 Small  tag  (App.  C,  Item  12) Silicone   sealant   (App.   C,   Item   11) Torques Except  for  special  torques  shown, all   fasteners   are   tightened   to   a standard  torque. Refer   to Appendix   E. EQUIPMENT  CONDITION References Condition   Description Paragraph   5-47 Battery   negative   disconnected. Go  to  sheet  2 5-168