TM 1-1520-238-23
Change 2
10-569
10.135. FUEL QUANTITY INDICATOR TEST (TF 579) SET INSTALLATION/REMOVAL – continued
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CAUTION
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TEST SET MUST BE
GROUNDED PRIOR
TO CONNECTION TO
AIRCRAFT FUEL
PROBES UNDER TEST
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h. Ensure that test set power ON/OFF switch (1)
is set to OFF.
i. Attach test set ground cable (2) to helicopter
ground terminal (3).
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