Inspection and Maintenance Auxiliary and Controls Systems Maintenance
ACSM–9
Inspection
Document
or Page
Reference
Inspection
Frequency and
Turbine StatusWhat to Inspect for
Accumulator
Precharge Pressure
Accumulator Safety Disc
A — S
A — S
IMP–14
Hydraulic System Piping
Leaking Pipe Connections
(All Other Units)
HGP — S
INLET GUIDE VANE CONTROL SYSTEM
Operation and Calibration
Inlet Guide Vanes Proper Operation
Calibration
20TV Trip Servo Valve for Proper
Operation
Check Trip Action of Inlet Guide
Vanes with Loss of Hydraulic Trip Oil
Check Operation and Sequencing of
Compressor Bleed Valves
Leakage in the System
D — O
A — S
A — S
SA — S
SA — S
M — O
Control
Specification,
Control
Specification–
Operating
Instructions and
Sequences and
Control
Specification–
Control System
Adjustments
COOLING AND SEALING AIR SYSTEM
Piping
Orifice Plates
Orifice Unions
Leakage
Loose Hardware, Hangers and Clamps
Vibration
A — S
A — S
D — O
M — O
M — O
IMP–14
Compressor Bleed Valve
Sluggish Movement Open/Close
Leakage
SA — S
M — O
IMP–14
Compressor Discharge
Pressure Transmitter Calibration
A — S
IMP–15
STARTING SYSTEM
Starting Diesel (if applicable)
See Vendor’s Preventive Maintenance
Procedure in Starting System Tab,
Volume II
90 Starts or
Once per Year
Starting Motor
See Vendor’s Preventive Maintenance
Procedure in Starting System Tab,
Volume II
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