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 TM 9-2520-270-34
DA FORM 2407 (From Unit Maintenance)
A DA FORM 2407 will accompany any faulty transmission. Before you repair a faulty transmission,
review the DA FORM 2407 that came with it. One or more fault symptoms will be described on the
form. You will use the fault symptoms and the FAULT SYMPTOM INDEX to determine which
inspection tree (or task) to use for a given fault.
FAULT SYMPTOM INDEX
The FAULT SYMPTOM INDEX lists each failure or deficiency that might be found on DA FORM
2407. It also lists the inspection tree (or task) you will use for locating and repairing the failure. Look
at the example below.
TM 9-2520-270-34
Section IV. INSPECTION TREES
FAULT SYMPTOM INDEX
Symptom or Deficiency
Page
Inspection Tree/(Task)
(From DA Form 2407)
Delay at first to
second range shift point NO ACCELERATION IN SECOND RANGE
2-34
Disconnect clutch failure . . . , VEHICLE STEERS IN NEUTRAL. . . . .2-138
Engine stalls during braking . . ENGINE STALLS DURING BRAKING . . . .....2-96
Engine stalls when
transmission
is
engaged
FROZEN
INPUT
2-83
...
........
Low makeup pressure . . . . LOW MAKEUP PRESSURE. . . . . . . . . . . . . . . . . . . . . . . .....2-47
.2-30
No acceleration in second range NO ACCELERATION IN SECOND RANGE ... .. .2-34
No acceleration in third range, ., NO ACCELERATION IN THIRD RANGE . . .. ..2-103
No back problem ., ., NO PROPULSION, WITH STEER . . . .. . . . ... .2-118
No input to transmission . . . . NO INPUT TO TRANSMISSION . . . . .. ..2-14
No propulsion, no steer NO PROPULSION, NO STEER . . . .. . . . . . ....2-129
No speed reference signal NO PROPULSION, WITH STEER . . . . ....2-118
NO ACCELERATION IN SECOND RANGE . . . . .2-34
Poor acceleration
...
.2-74
Rollback problem . . ... . TRANSMISSION ROLLBACK
.. . . . . . .
Servl
DA FORM 2404 and DA FORM 2407 -- COMPLETING
Before going to an inspection tree, you should understand how to properly fill out DA Forms. In this
manual, two forms are used. They are DA FORMS 2404 and 2407. If the transmission is repaired,
only DA FORM 2404 is completed. If the transmission or components are sent to depot, both DA
FORMS 2404 and 2407 are completed and accompany the transmission or component.
v
All data on pages vi and vii deleted.
Change 2
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