TM-9-2350-261-20-1

CARRIER, M113A2, M577A2, M1064, M1068, M1059 AND M901A1

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL - VOLUME 1 OF 4

TM-9-2350-261-20-1 - Page 192 of 346

TM 9-2350-261-20-1

200 AMP CHARGE/REGULATION TROUBLESHOOTING

0021 00

INITIAL SETUP:

Maintenance Level

Unit

Tools and Special Tools

Alternator Test Kit (WP 0780 00, Item 78)

Electrical Connector Pliers (WP 0780 00, Item 44)

General Mechanic’s Tool Kit (WP 0780 00, Item 29)

Multimeter (WP 0780 00, Item 43)

Personnel Required

Unit Mechanic

References

WP 0294 00

Equipment Condition

Engine stopped (see your -10)

Carrier blocked (see your -10)

Ramp lowered (see your -10)

All radios and heaters OFF (see your -10)

Battery box cover removed (WP 0295 00 or WP 0306 00)

T

1.

Disconnect battery ground lead (WP 0294 00).

2.

Check all electrical connectors, harnesses, and cannon plugs

before connecting alternator test kit.

3.

Are connectors and cannon plugs tight and pins in place in

harnesses?

TN

1.

Tighten or repair connections,

cannon plugs, and harnesses. Use

electrical connector pliers.

2.

Repeat charging system operational

check (WP 0020 00).

Y

1.

Check generator drive belt.

2.

Is belt tight and in good condition?

YN

1.

Adjust generator (WP 0228 00) or

replace drive belt (WP 0234 00).

2.

Repeat charging system operational

check (WP 0020 00).

2Y

1.

Connect alternator test kit (WP 0019 00).

2.

Measure battery voltage using multimeter.

3.

Start engine and check generator field switch circuit

(lead to ground).

4.

Is battery voltage present?

2YN

1.

Repair generator field switch circuit

(WP 0232 00).

2.

Repeat charging system operational

check (WP 0020 00).

002100-1