TM 9-2350-247-20-1
200 AMP CHARGING SYSTEM OPERATIONAL CHECK (M548A3)Continued
0024 00
2Y
1. Check voltage.
2. Is voltage 27.5 or higher?
YES
NO
GO TO BY (PAGE 0024 00-2)
3Y
CAUTION
If voltage is 35 or more volts, shut off engine. Generator
could be damaged.
1. Raise engine speed slowly.
2. Is voltage between 27.5 and 28.5 volts?
YES
NO
GO TO CY (PAGE 0024 00-3)
4Y
1. Run engine at 900 rpm and turn on electrical equipment (lights
and radio).
2. Does voltage vary less than ± 0.5 volts?
YES
NO
4YN
1. Go to 200 amp no charge/ regulation
troubleshooting (WP 0025 00).
2. Verify no faults found.
5Y
1. Verify no faults found.
BY
1. Adjust voltage regulator setting (WP 0249 00).
2. Start engine and run at fast idle (800 rpm) with no electrical
equipment/load.
3. Is voltage higher than battery voltage?
YES
NO
BYN
1. Go to 200 amp no charge/ regulation
troubleshooting (WP 0025 00).
2. Verify no faults found.
2BY
1. Verify no faults found.
0024 00-2