TM 55-2840-254-23
4-24
TEST THERMOCOUPLE HARNESS ASSEMBLIES (Continued)
4-24
4. Measure continuity of five thermo-
couple harness assemblies (5) as
follows:
a.
Set multimeter range switch to R
x 1.
b.
Clip black lead (8) to pin (7).
c.
Meter shall indicate 3 ohms maxi-
mum.
NOTE
A thermocouple harness assembly
that has been found defective shall
be disconnected from the bus bar as-
sembly and have it leads taped with
fiberglass tape separately and then
to the bus bar assembly in order to
remove its signal input and prevent
damage during operation. An en-
gine may remain in service with a
defective harness (one only) pro-
vided that the defective harness is
replaced at the next scheduled air-
craft phase inspection. Harnesses
found defective during hot end in-
spection/schedule maintenance shall
be replaced.
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