TM 9-2320-387-24-l
DRIVETRAIN
KNOWN INFO
VEHICLE DOESNT MOVE
SHIFTER OK
FLUID OK
POSSIBLE
PROBLEMS
TRANSFER CASE
TRANSMISSION
HALFSHAFTS AND
PROPELLER SHAFTS
GEARED HUBS
KNOWN INFO
I
SHIFTER OK
TRANSFER CASE OK
TRANSMISSION
OK
SPEEDOMETER
WORKS
POSSIBLE
PROBLEMS
PROPELLER
SHAFTS
U-JOINTS
GEAREDHUBS
HALFSHAFTS AND
CV JOINTS
KNOWN INFO
SHIFTER OK
TRANSFER CASE OK
TRANSMISSION
OK
SPEEDOMETER
WORKS
PROPELLER SHAFTS OK
U-JOINTS
OK
POSSIBLE
PROBLEMS
GEARED HUBS
HALFSHAFTS AND
CV JOINTS
&iii@
Bl
THE PROBLEM IS MOST LIKELY
IN THE TRANSFER CASE OR
TRANSMISSION. IF YOU FIND NO
FAULTS IN THIS TEST CHAIN
AND YOU CAME FROM
TRANSMISSION, NOTIFY DS
MAINTENANCE (CHAPTER 14).
DIAGNOSTIC FLOWCHART
I TEST OPTIONS
INSPECT THE FRONT AND REAR
VISUAL
PROPELLER SHAFTS AND
U-JOINTS. ARE THEY OK?
REASON FOR CXJESTION
The propeller shafts transmit
power from the transfer case
I
to the differentials.
INSPECT THE HALFSHAFTS AND
THE CONSTANT VELOCITY
JOINTS. ARE THEY OK?
REASON FOR QUESTION
The halfshafts transmit power from
the differentials to the geared
hubs.
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