56-101-01501_01502 Revision D
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(13) Press F1 to select SIM (default), if not highlighted.
SIM
ACFT
A & S
TANK
COMP
F1
F2
F3
F4
F5
F6
(14) Close appropriate aircraft Fuel Quantity System circuit breaker(s).
(15) Adjust the Empty adjustment screw for a ZERO or EMPTY indicator reading.
(16) Press BACK to return to Main screen.
(17) Press F5 to select the SIMulator function.
(18) Press F1 to select TANK.
TANK
COMP
CAL
F1
F2
F3
F4
F5
F6
(19) Using the keypad enter the Full TANK capacitance.
(20) If the compensator Full capacitance value is not the same as its Empty value, then press
F2 and enter FULL Compensator value.
(21) Press BACK to return to Main screen.
(22) Press F6 to select CAL.
AUTO
MON
INS
CAP
SIM
CAL
F1
F2
F3
F4
F5
F6
(23) Adjust the Full adjustment screw to achieve a correct indicator reading.
(24) With some systems there may be an interaction between the Empty and Full
adjustments, therefore it will be necessary to repeat the Empty and Full adjustments
until no further improvements can be made.
(25) Once the Empty and Full adjustments are finalized, an indicator linearity test may be
accomplished. Refer to the appropriate Maintenance Manuals for capacitance values
between Empty and Full, to verify indicator linearity.
(26) This completes the INDICATOR TEST.
(27) Open appropriate Fuel Quantity System circuit breaker(s).
(28) Press PWR to turn test set OFF.
(29) Disconnect the Adapter Cable from the Test Set.
(30) Disconnect the Adapter Cable from the Aircraft and from the Indicator.
(31) Return the Aircraft to its original configuration.
10. SYSTEM CALIBRATION, PREFERRED (DRY TANK)
Insulation, capacitance, and all components of the system should be tested with their integrity
proven before attempting system calibration.
A.
Aircraft Preparation
If time or facilities do not permit draining of the tanks, the alternate method may be used in
most instances.
CAUTION:
THIS PROCEDURE CANNOT BE CARRIED OUT UNTIL FUEL TANKS
HAVE BEEN EMPTIED AND PURGED. REFER TO APPROPRIATE
AIRCRAFT MAINTENANCE MANUALS FOR PROPER FUELING AND
DEFUELING PROCEDURES, OBSERVING PRECAUTIONS THEREIN.