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 TM 5-1940-277-20
TM 1940-20/2
3.
Using flat tip screwdriver remove two screws (1) from regulator box cover.
4.
Disconnect wire from F terminal on voltage regulator.
5.
Use a jumper wire and connect the disconnected wire to the negative (-) terminal on voltage regulator.
Turn master switch ON.
6.
7.
Turn engine circuit switch ON.
lf warning light comes ON and stays ON, the regulator is bad. Go to step 8.
lf warning light does not come ON and stay ON, the alternator is bad. Go to step 9.
Report defective control box to direct support maintenance.
8.
9.
Replace alternator (refer to paragraph 3-92).
10.
Disconnect the jumper wire and reconnect the wire to terminal F.
3-240
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