800gench4.fm Rev.A 800TCU User’s Guide 4-1
4
Maintenance
4.1 Introduction
Effective maintenance and troubleshooting of this system requires a thorough
understanding of equipment characteristics, operating procedures, theory of operation and
knowledge of both linear and logic circuit elements. The equipment characteristics,
operating procedures and the theory of operation for the system processor are provided in
Chapter 1 through Chapter 3 of this manual.
All work performed on this equipment will be either preventative or corrective
maintenance. Preventative maintenance is defined as what is required to maintain peak
operating efficiency and to reduce the possibility of equipment malfunction. Corrective
maintenance is defined as troubleshooting and correcting equipment malfunctions. Both
types of maintenance procedures are described in the following paragraphs of this section.
4.2 General Information
This information includes a list of warnings and cautions and procedures for locating
drawings and circuits.
4.2.1 Warnings and Cautions
The following is a list of warning and cautions to be observed while performing
maintenance on this equipment. Failure to observe these warnings and cautions can result
in serious injury, loss of life, or equipment damage.
Warnings
WARNING
Exercise extreme care when working in or around energized
electrical equipment. Dangerous voltages are present that can
cause serious injury or loss of life. The power supply in
particular, has high voltages associated with it.
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