ARMY TM 9-2815-252-24 AIR FORCE TO 38G1-92-2 f. Connect electrical leads to solenoid (8) as tagged during removal.  Remove tags. g. Adjust fuel solenoid installation, refer to end item maintenance manual. Section VII.  LUBRICATION SYSTEM MAINTENANCE 3-20. Oil FILTER AND CRANKCASE DOOR. 3-20.1.   Oil Filter Cartridge Replacement. a. Drain lubrication system, refer to end item maintenance manual. b. Loosen cartridge (1, FIGURE 3-15) by turning counterclockwise with a filter wrench. c. Discard used cartridge. d. Wipe filter mating surface with a clean rag. e. Apply light coat of engine lubricating oil (MIL-L-2104) to new cartridge (1) gasket. f. Place cartridge on adapter (2) and turn clockwise until cartridge is hand tight. g. Using filter wrench, turn cartridge an additional 1/2 to 3/4 turn. h. Service lubrication system, refer to end item lubrication order. i. Operate engine and check for leakage. 3-20.2.   Crankcase Door. 3-20.2.1 Removal. a. Drain lubrication system, refer to end item maintenance manual. b. Remove oil filter cartridge, refer to paragraph 3-20.1. c. Remove fuel solenoid and bracket, refer to paragraph 3-19.1. d. Remove seven bolts (3, FIGURE 3-15) two nuts (5), two stand off studs (6), and eleven washers (4) securing crankcase door (7) to crankcase; remove door (7) and gasket (8).  Discard gasket. e. If damaged, remove studs (9) from engine. 3-36