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Description
Operation of the combustion gas turbine, as of any rotating power equipment, must include a planned program of periodic inspection, with accompanying repair and replacement of parts as necessary, to ensure the maximum availability and reliability of the unit.
The object of this Maintenance Section is threefold:
1. To aid the user in becoming familiar with the unit by separating the inspections according to specific systems and, where appropriate, describing briefly the reason for the inspection and the action to be taken.
2. To identify those components and parts that should be periodically examined between the initial
start-up tests and the designated inspection.
3. Inspection intervals herein are based on engineering judgment and experience gained with gas turbine units. The actual time interval established for any particular gas turbine should be based on
the user’s operating experience and on ambient conditions, such as humidity, dust and corrosive
atmosphere.
Prior to scheduled inspections or taking operating data, clean the compressor per the gas turbine compressor cleaning procedure in the Standard Practices section of this maintenance instructions. Before and after any inspection, a complete set of operating data, including vibration readings, should be taken and recorded for reference. A record of the inspections made and the maintenance work performed will be most valuable in helping to establish a good maintenance program for the gas turbine unit(s). It is expected that the maintenance program will start with minor work and increase in magnitude over a period of time to a major overhaul, and then repeat the cycle. The performance of inspections can be optimized to reduce unit outage time and maintenance cost for a particular mode of operation, and still maintain maximum availability and reliability of the unit.
Content:-
1. INTRODUCTION
2. STANDARD PRACTICES
3. AUXILIARY AND CONTROLS SYSTEMS MAINTENANCE
4. SCHEDULED TURBINE MAINTENANCE
5. COMBUSTION INSPECTION
6. HOT GAS PATH INSPECTION
7. MAJOR INSPECTION
8. MAINTENANCE INSPECTION FORMS
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