Probe through the insulation of lead 487 wire with the multimeter
red probe and ground the black probe. Set the MASTER switch in
the ON position. If no voltage is indicated, lead 487 from the
preheat solenoid terminal 487 to the APU harness plug must be
replaced as outlined in TM 9-2350-267-20. If a voltage reading
is indicated, then Test 6 must be accomplished.
Figure 40.
APU Terminal 487.
Figure 41.
APU Terminal D, Lead 487.
37
OD1702
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