TM 55-1510-215-10
NOTE
DIAGRAM SHOWS TYPICAL GRAV ITY FEED FUEL
FLOW FOR THE LEFT SIDE.
LEFT SYSTEM IS
IDENTICAL TO RIGHT EXCEPT THE FORMER
CONTAINS THE CROSSFEED VALVE, PARALLELED BY
A THERMAL RELIEF VALVE, AND THERE IS A
THERMAL RELIEF VALVE AND LINE FROM THE CROSS
LINE IN THE RIGHT FUEL SYSTEM.
EACH WING SYSTEM WILL GRAVITY FEED ONLY TO
IT'S RESPECTIVE ENGINE, I.E. LEFT OR RIGHT. FUEL
WILL NOT GRAVITATE THROUGH THE CROSSFEED
SYSTEM.
THE ENGINE DRIVEN PRIMARY (HIGH PRESSURE)
FUEL PUMP IS LIMITED TO 10 CUMULATIVE HOURS OF
OPERATION THROUGHOUT IT'S TBO PERIOD WITHOUT
AUXILIARY FUEL PUMP OR ENGINE-DRIVEN BOOST
PUMP FUEL PRESSURE.
Figure 2-14. Gravity Fuel Flow.
2-27
