M2/M3 BFV:
STEERING SYSTEM - OD1605 - LESSON 1/TASK 1
during troubleshooting and the procedures used to hook up the test
equipment to the vehicle.
2.
General Troubleshooting Procedures
a.
General. When equipment malfunctions, it is not always obvious
what is causing the problem.
A description as general as "the
steering system does not work" does not point directly to the
specific malfunctioning component so that the problem can be
repaired.
Knowing how to isolate the faulty component is an
essential part of materiel maintenance.
This process of systematic
isolation of defective components by analyzing trouble symptoms and
testing for defective components so that corrective action can be
taken is known as troubleshooting.
Troubleshooting, in the general
sense, is a logical thought process. When applied methodically, this
thought process leads to the identification of defective parts so
that the malfunctioning equipment can be repaired.
The general description of troubleshooting methods can be outlined in
four steps. First, it must be verified that the reported problem is
present in the vehicle.
The symptoms of the problem must be
identified, verified, and analyzed.
Second, the fault must be
isolated. This is done by applying the knowledge gained in step one
to identify the system in which the malfunction is occurring and then
to methodically test components in that system which could be causing
the problem.
Third, once the fault has been isolated, it will be
necessary to correct the fault by repairing, adjusting, or replacing
defective components.
Finally, it is necessary to verify that the
problem no longer exists and that there are no other problems.
b.
Symptom Analysis. The first step in the general troubleshooting
method may be called symptom analysis.
It consists of getting as
much information as possible to help identify the specific nature of
the symptoms causing the malfunction and analyzing those symptoms.
The information needed to analyze the trouble symptoms can be
obtained by reading DA Form 2404, interviewing the vehicle crew, and
test operating the malfunctioning equipment.
Then, it would be
necessary to look up the vehicle system where the problem is located
in the task index beginning on page 3-15 of TM 9-2350-252-20-1-1.
This index will
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