TM   10-3930-638-24&P 3-6.   FUEL   SYSTEM   MAINTENANCE a. Fuel Injection Lines and Fittings. This  task  covers:  a.  Removal b.  Cleaning INITIAL SETUP TOOLS Automotive Mechanic’s NSN  5180-00-754-0641 Tool  Kit MATERIALS/PARTS Cleaning solvent P-D-680 Clean  cloths Copper  washers c.  Inspection d.   Installation/Replacement EQUIPMENT  CONDITION Paragraph Condition  Description Vehicle parked on level surface, engine off, and  parking  brake  applied. 2-53c Side  panels  removed. Fuel tank shut-off valve closed. 2-15d(1) Fuel return line disconnected from fuel injector tee fitting. STEP LOCATION ITEM ACTION REMARKS REMOVAL NOTE Thoroughly steam clean area around fuel injectors, fuel filters, fuel injection pump, and fuel lines before starting removal. 1 Leak-off tube tees a. Tube nut (1) and Loosen and From tee (7) at fuel injectors sleeve (2) disconnect b. Leak-off tube (3) Remove c. Leak-off tube (4) Remove d. Cap nut (5) and Disconnect From tee (7) grommet (6) e. Leak-off tee (7) Loosen and From tee (7) and fuel injector disconnect 2 Fuel  injector Inlet  fitting  on  injection Loosen and Use one hand, two wrench method as inlet  fittings tube (8) disconnect shown  to  minimize  possibility  of  damage to fitting or injector Change   1   3-71