ADJUSTMENT OF FUEL INJECTION TIMING (CONT)

ADJUSTMENT OF FUEL INJECTION TIMING (CONT) - TM-5-4320-302-14_407

ADJUSTMENT OF FUEL INJECTION TIMING (CONT) - TM-5-4320-302-14_409

TM-5-4320-302-14 Forward Area Water Point Supply System (FAWPSS) Model WP55100 NSN 4320-01-168-1629 and Model 9095-91 NSN 4320-01-338-3305 Manual
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TM 5-4320-302-14 6-4. ADJUSTMENT OF FUEL INJECTION TIMING (CONT) Location/Item Action Remarks 16. High pres- Pump hand pump handle until fuel flows out of sure timing overflow pipe into reservoir. device No. 003-0714 17. Flywheel or Rotate flywheel, crankshaft, or V-belt pulley V-belt pulley counterclockwise (in normal running direction) slowly and continue to pump hand pump handle until fuel flow decreases to a drip. When the interval between droplets is 5 to 8 seconds, the fuel injection rate is correct. Stop rotation of crankshaft. 18. FB mark Make sure FB mark lines up with marking on front cover. If so, the fuel injection timing is adjusted correctly and there is no need for further adjustment. If not, proceed with the following steps to adjust fuel injection timing. 19. Fuel injec- Remove and adjust fuel injection pump seating tion pump surface to base circle of cam clearance in accord- ance with procedure in paragraph 6-5. Reinstall but do not tighten hex nuts. 20. Fuel injec- Adjust by moving fuel injection pump sideways. tion timing Move pump toward A if FB mark has not reached marking on front cover after proceeding with step 17. If FB mark has not reached marking on front cover, fuel injection will occur earlier than it should. Moving pump toward A will make fuel injection occur later. Move pump toward B if the 6-14

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