ENGINE,  FUEL,  EXHAUST  AND  COOLING 4-28. Fan   Guard,   Grille,   Housing This   task   covers: a. Removal TM   10-3930-643-20 TROUBLESHOOTING AND MAINTENANCE. and   Supports.   (Sheet   1   of   5) 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,   Item   2) NSN   5180-00-177-7033 Clean   cloth   (App.   C,   Item   10) Torques Except   for   special   torques   shown, all   fasteners   are   tightened   to   a standard   torque. Refer   to Appendix  E. EQUIPMENT  CONDITION References Condition   Description Paragraph   12-3 Engine   top   access   cover   removed. Paragraph   5-47 Battery   negative   disconnected. Go  to  sheet  2 4-117