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 TM 9-1220-220-34
1-3.
HOW TO TROUBLESHOOT
The following steps tell you how to troubleshoot. A diagram of these steps is on page 1-3.
A
Do a visual check and list any faults on DA Form 2404 before making repairs. See Vol II, Chap 3 for what to
check for.
B
If you see any faults that may affect the performance test, fix them now. This does not mean small things like
painting scratches.
C
Do the performance test in Vol I, Chap 2 from the beginning until you find a fault symptom.
D
Do the maintenance action required to correct the fault (Vol II, Chap 4).
E
After the bad part has been repaired or replaced, do the performance test in Chapter 2 again. This is to
make sure the new part has fixed the problem.
F
If all the faults are now corrected, do the remaining maintenance tasks on DA Form 2404.
G
Do the final inspection given in Vol II, Chap 5.
H
The job is over and the good assembly is sent back to service.
I
If all faults were not corrected after step E, the bad assembly is sent back to the depot for repair.
Para 1-3 Vol I
1-2
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