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TM 55-4920-383-13&P
procedure of CAPACITANCE RANGE switch (6).
(2) Once the suitable CAPACITANCE RANGE swith (6) position is selected, the
COMP-SIMULATOR fine adjustment control (13) must be set to the desired value of simulated
compensator capacitance as read on the Test Set digital display (7).
2-10.
Fuel Quantity System
The following steps give a
Calibration.
detailed procedure for adjusting the EMPTY and FULL con-
trols located at the rear of the aircraft indicator under test:
In order
does not
NOTE
to avoid erroneous indications when testing a fuel quantity system that
have a compensator, remove the wire in the W4 harness that is connected
to the Test Set receptacle marked INDICATOR-COMP (21) and place the pro-
tective cover on the receptacle. The protective cover has a grounded pin which
grounds the unused compensator section to eliminate any stray pickup when not
in use.
a.
Fuel Tank Completely Defueled.
(1) With the equipment set up as shown in figure 2-2, set Test Set switches as
follows:
Switch
Position
ON/OFF (20, figure 2-1)
ON
DISPLAY SELECT (8)
CAP (pF)
CAPACITANCE FUNCTION (1)
IND TEST-A/C
(2) Adjust the EMPTY control at the rear of the aircraft indicator to obtain an
empty indication.
2-18
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