TM   10-3930-643-20 ELECTRICAL  SYSTEM  TROUBLESHOOTING  AND  MAINTENANCE. 5-41. Oil   Pressure   Switch.   (Sheet   1   of   4) 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 Cleaning   solvent   P-D-680 Automotive (App.   C,   Iem   2) NSN   5180-00-177-7033 Clean   cloth   (App.   C,   Item   10) 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 Paragraph   5-47 Condition    Description Battery   negative   disconnected. Go  to  sheet  2 5-203