TORQUE CONVERTER MAINTENANCE (3L80)

TM 9-2320-280-34

17-4. TORQUE CONVERTER MAINTENANCE (3L80)

This task covers:

a. Cleaning

b. Inspection

INITIAL SETUP:

Applicable Models

Equipment Condition

All vehicles except M997A2, M1025A2,

Transmission disassembled into subassemblies

M1035A2, M1043A2, M1045A2, M1097A2,

M1123

Maintenance Level

Manual References

General support

TM 9-2320-280-24P

a. Cleaning

NOTE

Have drainage container ready to catch fluid.

Drain fluid from torque converter (1). Replace torque converter (1) if fluid is contaminated.

Clean exterior of torque converter (1) in accordance with para. 2-13.

b. Inspection

NOTE

For general inspection instructions, refer to para. 2-14.

Inspect torque converter hub (2) for damage. Replace torque converter (1) if hub (2) is damaged or

abnormal looseness or noises were recorded at torque converter removal (para. 17-3a).

Inspect torque converter (1) for proper operation by manually rotating splined inner race (3) in both

directions. The splined inner race (3) should turn freely in clockwise direction, but not turn or be

very difficult to turn, in counterclockwise direction. Replace torque converter (1) if it does not

operate properly.

Inspect torque converter (1) for damaged or leaking seams and welds. Replace torque converter (1)

if damaged.

Inspect torque converter pilot (5) for damage. Replace torque converter (1) if damaged.

Inspect threaded holes (4) for damage. Repair with thread repair inserts. If unable to repair

threaded holes (4), replace torque converter (1).

Change 2

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