TM 9-2350-247-20-1
200 AMP NO CHARGE/REGULATION TROUBLESHOOTING (M548A3)
0025 00
INITIAL SETUP:
Maintenance Level
Unit
Tools and Special Tools
General Mechanic’s Tool Kit (WP 0541 00, Item 57)
Multimeter (WP 0541 00, Item 29)
Slip Joint Pliers (WP 0541 00, Item 33)
Generator Test Kit (WP 0541 00, Item 53)
Personnel Required
Unit Mechanic
References
See your -10
TM 9-6140-200-14
Equipment Condition
Engine stopped (see your -10)
Carrier blocked (see your -10)
All radios and heaters OFF (see your -10)
T
1. Disconnect batteries (WP 0293 00).
2. Check all electrical connectors, harnesses, and Cannon plugs
before connecting generator test kit.
3. Are connectors and Cannon plugs tight and pins in place in
harnesses?
YES
NO
TN
1. Tighten or repair connections,
Cannon plugs, and harnesses.
2. Repeat charging system operational
check (WP 0024 00).
Y
1. Check generator drive belt.
2. Is belt tight and in good condition?
YES
NO
YN
1. Adjust generator (WP 0245 00) or
replace drive belt (WP 0245 00).
2. Repeat charging system operational
check (WP 0024 00).
2Y
1. Connect generator test kit.
2. Measure battery voltage.
3. Start engine and check generator field switch circuit (lead 1 to
ground).
4. Is battery voltage present?
YES
NO
2YN
1. Repair generator field switch circuit
(WP 0294 00).
2. Repeat charging system operational
check (WP 0024 00).
0025 00-1
