Method Of Using Troubleshooting Chart; Troubleshooting - Komatsu Galeo BR380JG-1E0 Shop Manual

40 Troubleshooting

Method of using troubleshooting chart

The troubleshooting chart consists of the "questions",
"check items", "causes", and "troubleshooting" blocks.
The questions and check items are used to pinpoint
high probability causes by simple inspection or from
phenomena without using troubleshooting tools.
Next, troubleshooting tools or direct inspection are
applied to check the narrowed causes in order from the
most probable one to make final confirmation accord-
ing to the troubleshooting procedure.
Questions
Items to be drawn from the user or operator. They
correspond to A and B in the chart on the right.
The items in A are basic ones. The items in B can
be drawn from the user or operator, depending on
their level.
Check items
Simple check items used by the serviceman to
narrow the causes. They correspond to C in the
chart on the right.
Causes
Items to be narrowed from the questions and
check items. The serviceman narrows down the
probable causes from A, B, and C.
Troubleshooting
Items used to find out the true cause by verifying
the narrowed causes finally in order from the most
probable one by applying troubleshooting tools or
direct inspection.
Items listed in the [Questions] and [Check items] and related to the [Causes] are marked with E, Q, and w.
E : Causes to be referred to for questions and check items
Q : Causes related to questions and check items
w : Causes highly probable among ones marked with Q
a When narrowing the "causes", apply the items marked with w before those marked with Q.
When narrowing the causes, do not apply the items marked with
the causes cannot be narrowed, however, you may apply them.)
BR380JG-1E0
E . (If no items have other marks and
SEN02307-00
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