TM 55-1510-221-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
(9)
Standby pump circuit breakers (left and right)
In.
(10)
Firewall shutoff valve circuit breakers (left and
right) In.
(11)
Crossfeed valve switch-
C40
Set alternately to left and right system Check
that FUEL CROSSFEED annunciator light
illuminates, and that the #1 and #2 FUEL
PRESS annunciator lights are extinguished.
(12)
Crossfeed valve switch OFF
*(13)
Fuel quantity indicators-
B6-8
Check as follows:
(a)
Fuel quantity indicator selector switch
MAIN.
(b)
Fuel
quantity
indicators
Compare
indication. With full fuel tanks, left and
right fuel quantity indicators must indicate
within 82 pounds of each other with fuel
quantity indicator selector switch set to
MAIN.
(c)
Fuel quantity indicator selector switch
AUXILIARY
(d)
Fuel
quantity
indicators
Compare
indicator
2-3
