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 ELECTRIC PROTECTIVE SYSTEM
SYSTEMS OPERATION
INTRODUCTION TO THE TROUBLESHOOTING GUIDE
The troubleshooting guide, when followed exactly as shown, can be an aid for the serviceman to find
if a problem exists, and to find the cause of the existing problem.
ELECTRIC PROTECTIVE SYSTEM
FUNCTIONAL TESTS
These tests are to be performed on an engine that is started for the first time and at recommended
check intervals. They consist of quick and easy procedures for each system that can immediately identify
if there is a problem in that system with a minimum amount of test time. If a problem is found, go to the
correct chart of the more specific troubleshooting procedures.
ELECTRIC PROTECTIVE SYSTEM
TROUBLESHOOTING PROCEDURES
The troubleshooting charts that follow show a definite sequence to be followed for a logical, one by
one elimination of many variables. There are specific procedures written to check out different
components of the system, and they can be found at the end of the troubleshooting charts. When the
chart makes reference to a specific procedure, do this procedure before proceeding any farther in the
chart.
When a problem is found and corrected, always check the system again by use of verify procedure
as shown at bottom of charts.
Some areas of the charts say to go to an alphabetical letter. When told to go to this specific letter,
find this letter with a circle around it in the chart. Follow the test procedures from this point to the bottom
of the chart.
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