61-101-00802.EF2 (REV. G) CH. 2
January 7, 2015 Page 32 of 44
Note: The battery must be connected; the battery switch set to ON
position and the circuit breakers closed for this test.
(37) Rotate the TEST FUNCTION switch to PROBE(S).
(38) Set the test set ON / OFF switch to ON.
(39) Set the aircraft fuel panel select switch to AUX / NAC and hold if
applicable.
(40) Push and hold the test set PRESS TO READ CAP (pF) pushbutton.
(41) Record the capacitance value measured.
(42) Release the pushbutton.
(43) Rotate the TEST FUNCTION switch to CAP SIM CAL (NORM SYS).
(44) Set the CAP SIM (pF) 100’s and the 10’s thumbwheels to the closest
approximation of the recorded value of step 40.
(45) Press and hold the PRESS TO READ CAP (pF) pushbutton while
adjusting the CAP SIM (pF) control knob to obtain the recorded value
of step 40.
(46) Set the test set ON / OFF switch to OFF.
(47) Turn the aircraft battery ON / OFF switch to OFF if applicable.
(48) Disconnect the aircraft battery if previously connected.
(49) Connect the test set to the Indicator as shown in either Figure 5 or 6
as applicable.
(50) Reconnect the aircraft battery.
(51) Close the circuit breakers.
(52) Turn the aircraft battery ON / OFF switch ON.
(53) Set the test set ON / OFF switch to ON.
(54) Set the aircraft fuel panel select switch to AUX / NAC and hold, if
applicable.
Caution: Do not tap bezel of instrument to vibrate. To remove friction,
gently tap adjacent panel or rear housing of indicator before
taking readings.
(55) Verify the indicator reads zero pounds.
(56) Rotate the TEST FUNCTION switch to IND AMP.
Caution: Do not tap bezel of instrument to vibrate. To remove friction,
gently tap adjacent panel or rear housing of indicator before
taking readings.
(57) Verify the indicator reads the same as in step 55 within one needle
width.
Note: Failure to obtain the correct indication may indicate the
possibility of in-line resistance in the aircraft wiring between
the Indicator and the probes. If this condition is found to
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