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TM 10-3930-673-20-1
VOLTAGE TEST
(1) Disconnect negative battery cable from
negative side of battery (Para 8-42).
(2) Set multimeter to volts dc.
(3) Connect multimeter positive lead (+) to
circuit breaker CB6 where wire 1
connects.
WIRE 1
(4) Connect multimeter negative lead () to
known good ground.
(5) Connect negative battery cable to
negative side of battery (Para 8-42).
(a) If 24 vdc is present, go to Step 7 of
this fault.
(b) If 24 vdc is not present, replace
circuit breaker CB6 (Para 8-11).
(6) Disconnect negative battery cable from
negative side of battery (Para 8-42).
CIRCUIT BREAKER CB6
VOLTAGE TEST
(1) Set multimeter to volts dc.
(2) Connect multimeter positive lead (+) to
relay K4 where wire 1 connects.
(3) Connect multimeter negative lead () to
known good ground.
(4) Connect negative battery cable to
negative side of battery (Para 8-42).
WIRE 1
(a) If 24 vdc is present, go to Step 8 of
this fault.
(b) If 24 vdc is not present, repair
wire 1 (Para 8-48).
RELAY K4
(5) Disconnect negative battery cable from
negative side of battery (Para 8-44).
TR01724
2-203
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