TRANSMISSION UNUSUALLY NOISY WHEN OPERATING (CONT)

TM 9-2320-366-20-2

f11. TRANSMISSION UNUSUALLY NOISY WHEN OPERATING (CONT)

KNOWN INFO

TEST OPTIONS

Are transmission to engine

Visual Inspection

Transmission oil level OK.

flexplate bolts tight?

REASON FOR QUESTION

Oil not contaminated.

Operating temperature normal.

Loose transmission to engine

No codes logged in ECU.

flexplate bolts and / or damaged

PTO engagement OK.

flexplate will cause transmission

Scavenge pump engagement

to be unusually noisy when

OK.

operating.

Oil pump OK.

POSSIBLE PROBLEMS

Faulty flexplate bolts.

Faulty flexplate.

Faulty propeller shafts and /

or universal joints.

Faulty transmission transfer

case.

Tighten bolts to 33-47 lb-ft

YES

(45-64 N-m)

Notify DS Maintenance.

2-1650

Change 1