TRANSMISSION UNUSUALLY NOISY WHEN OPERATING. (Cont) -726250238

TM 9-2320-364-34-1

7. TRANSMISSION UNUSUALLY NOISY WHEN OPERATING (CONT).

TEST OPTIONS

KNOWN INFO

Unit Troubleshooting tasks

Visual inspection.

Are transmission internal oil

completed.

filter and/or pickup tube and

No ATEC codes.

REASON FOR QUESTION

preformed packing free of

Truck wiring OK.

Transmission yoke OK.

defects?

Restricted, clogged, or damaged

internal oil filter, or damaged or

POSSIBLE PROBLEMS

faulty internal oil filter pickup

tube, or missing, faulty oil pickup

Internal oil filter faulty.

tube preformed packing may

Transmission faulty.

cause transmission to operate

noisily.

Replace internal oil

filter and preformed

packing (Para 7-4).

Verify repair, go to

Step 4 of this Fault.

YES

Replace transmission

(Para 3-4).

Verify repair, go to

Step 4 of this Fault.

2-156