TM 9-2320-280-20-1
KNOWN INFO
POSSIBLE PROBLEMS
DIAGNOSTIC FLOWCHART
TEST OPTIONS
REASON FOR QUESTION
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
NO
YES
NO
YES
NO
YES
2-480 Change 1
START
1
NOTHING
IS THE TRANSMISSION
FLUID OK?
VISUAL - SEE NOTE AT RIGHT.
Transmission fluid passes through
the transfer oil cooler located inside
the transfer case.
SEE NOTE
AT RIGHT
FLUID OK
TRANSFER CASE
DIFFERENTIALS
HALF AND PROPELLER
SHAFTS
CV & U-JOINTS
GEARED HUBS
TRANSFER CASE
DIFFERENTIALS
HALF AND PROPELLER
SHAFTS
CV & U-JOINTS
GEARED HUBS
GO TO A,
Page 2-486
TRY ALL TRANSFER CASE
OPTIONS AND NOTE
UNUSUAL BEHAVIOR.
A road test is the best way
to test the drivetrain.
3
DOES THE SPEEDOMETER
WORK?
GO TO C,
Page 2-494
VISUAL INSPECTION.
The speedometer is driven by
the rear output shaft of the
transfer case.
SHIFTER OK
FLUID OK
VEHICLE PASSES
ROAD TEST
TRANSFER CASE
DIFFERENTIALS
HALF AND PROPELLER
SHAFTS
CV & U-JOINTS
GEARED HUBS
GO TO 4,
Page 2-482
ROAD TEST THE VEHICLE.
DOES IT PASS?
2
DRIVETRAIN
