TM-9-2320-366-20-2
M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)
TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 2 OF 5
FEBRUARY 2006
CHANGE 3
TM-9-2320-366-20-2 - Page 840 of 1632
f11. TRANSMISSION UNUSUALLY NOISY WHEN OPERATING (CONT)
YES
Is scavenge pump free from
damage?
CAUTION
Read CAUTION
on following page.
Notify DS Maintenance.
Notify DS Maintenance.
YES
Notify DS Maintenance.
TEST OPTIONS
Noise Check
REASON FOR QUESTION
Worn transmission gear teeth
and / or PTO gear teeth will
cause a noisy transmission.
KNOWN INFO
Transmission oil level OK.
Oil not contaminated.
Operating temperature normal.
No codes logged in ECU.
POSSIBLE PROBLEMS
KNOWN INFO
Transmission oil level OK.
Oil not contaminated.
Operating temperature normal.
No codes logged in ECU.
PTO engagement OK.
POSSIBLE PROBLEMS
TEST OPTIONS
Visual Inspection and
Scavenge Pump Suction
Test
REASON FOR QUESTION
Worn transmission gear teeth
and / or scavenge pump gear
will cause a noisy transmission.
TM 9-2320-366-20-2
2-1646
Change 1
Faulty PTO engagement.
Faulty scavenge pump
engagement.
Faulty oil pump.
Faulty flexplate bolts.
Faulty flexplate.
Faulty propeller shafts and /
or universal joints.
Faulty transmission transfer
case,
Faulty scavenge pump
engagement.
Faulty oil pump.
Faulty flexplate bolts.
Faulty flexplate.
Faulty propeller shafts and /
or universal joints.
Faulty transmission transfer
case,
NO
NO
Does operating noise
increase when PTO is
engaged?
2.
3.
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