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TM 9-2320-364-20-2
2-938
1. ENGINE FAILS TO CRANK (CONT).
2.
Replace ENGINE
switch (Para 7-32).
Verify repair, go to
Step 20 of this Fault.
YES
NO
22 to 28 vdc register on 24 vdc
volt meter indicating wire 1055
between DUVAC and starter
motor is OK.
Batteries OK.
ENGINE switch faulty.
Wire 1021 faulty.
Wire 1871 faulty.
Diode M36 faulty.
Wire 231 faulty.
Wire 210A faulty.
Wires 208/209 faulty.
NEUTRAL relay R11 faulty.
Wire 1281 faulty.
Wire 1021A faulty.
Wire 1435 faulty.
Magnetic switch R27 faulty.
Wire 1139 faulty.
Wire 1045 faulty.
Wire 1138 faulty.
Start ground wire faulty.
Starter motor solenoid faulty.
Starter motor faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If 22 to 28 vdc are not
measured, ENGINE switch is
faulty.
WARNING
Are 22 to 28 vdc measured on
wires 1020 and 1021 at
ENGINE switch with switch in
the ON and START positions?
Read WARNING
on Page 2-939
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