GE 7FA.05 - Page 13

Inspection and Maintenance Instructions for 7FA.05 Gas Onl
y
and Dual Fuel Gas Turbine
s
GEK 116862
Inspection What to Inspect for
Inspection
Frequency and
Turbine Status
Document
or Section
Reference
Compressor Air Filter Dirty Filter M – O
Signs of Moisture
Atomizing Air Pre–cooler XIV. C.
Air Leaks on Air Side A – O
Water Leaks on Tube Side A – O
Drop in Pressure A – O
Performance Reduction M – O
Scale, Sludge, Deposits A – O
Plugging of Leaking Tubes Maj – S
Plugging of Continuous Blowdown A – S
Atomizing Air Separator XIV. D.
Plugged Blowdown Lines A – O
HYDRAULIC OIL AND LIFT OIL SYSTEM
Hydraulic Supply Pump XVI. A.
Excessive Vibration or Unusual Noise M—O
Improper Discharge Pressure D—O
Relief Valve Leaking A—O
Leakage at Shaft and Mounting Flanges M—O
Lift Oil Supply Pump XVI. A.
Excessive Vibration or Unusual Noise M—O
Improper Discharge Pressure D—O
Relief Valve Leaking A—O
Leaking Around Shaft and Mounting
Flanges M—O
Hydraulic & Lift Oil Supply
Manifold
XVI. B.
Connections Loose or Leaking A—S
Air Bleed Valves XVI. C.
Improper Air Bleed Valve Operation A—S
Accumulators XVI. D.
Precharge Pressure M—S
Accumulator Bladder Wear A—S
Hydraulic & Lift System
Piping
Leaking Pipe Connections (All Other
Units) HGP—S
INLET GUIDE VANE (IGV) AND VARIABLE STATOR VANE (VSV) CONTROL SYSTEM
Operation and Calibration Control
Specification
IGV & VSV Proper Operation
Calibration D—O
Trip Servo Valve for Proper Operation A—S
Check Trip Action SA—S
Leakage in the System M—O
COOLING AND SEALING AIR SYSTEM
Piping XVII. B.
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