Figure 4-13. Fuel Pump4-23. FUEL SHUT-OFFSOLENOIDa. Inspect (on Equipment) (see figure 4-14). On ASK equippedgenerators, remove right panel assembly (para. 5-6). Check thatelectrical connections(1) are secure and clean. Check that rubberboot (11 ) is clean and not broken. Check that governor and pumplinkage moves freely and is clean.b. Test (on Equipment) (see figure 4-15).(1) Tag and remove the solenoid harness leads(l). Figure 4-14.Switch S2 in figure 4-16 must be closed duringinitial activation of solenoid to prevent in-rushcurrents from damaging the dc ammetar. Openswitch S2 after solenoid activation to permit dcammeter to function.(2) Connect the solenoid into test setup (figure 4-15).TM5-6115-585-12NAVFAC P-8-623-12TO-35C2-3455-1TM-05684C/05685B-12(3) With switch (S1) closed the plunger shouldactuate and the current draw should be 0.25 ampere dc.(4) If plunger does not actuate or if meter readsabove 0.35 amperes replace solenoid.C . Remove (see figure 4-14). Tag and disconnectharness leads (1). Remove the shut-off solenoid byremoving screws (9) and Iockwashers (10).d. Installation. Mount shut-off solenoid usingscrews (9) and lockwashers (10). Reconnect previouslytagged and removed harness wires (1).e. Adjust. The solenoid plunger (3) should be adjusted so itfully stops injection when in the deenergized position. With enginerunning at full rated load, clearance between plunger (3) and controlarm (4) should be at least 1/8 inch. To adjust the plunger length,loosen jam nut (6) on bottom of plunger. Turn knurled headscrew(5). Lock jam nut (6) after correct adjustment. On ASK equippedgenerators, install right panel assembly (para. 5-6).Figure 4-14. Adjusting Fuel Shut_Off SolenoidChange 84-23
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