Generator Alignment

NGI provides generator alignment services to verify and correct alignment between the generator shaft and main shaft or gearbox output shaft. Work is executed using precision measurement tools to identify angular and parallel misalignment and bring components within required tolerances.

Alignment is performed with a focus on accurate measurement, controlled adjustment, and proper verification under secured conditions. Generator position is adjusted as required to ensure proper fit-up and smooth transfer of rotational force through the drivetrain.

Final verification is completed following torque and securement to confirm alignment stability. All work is documented to support traceability and ensure alignment has been achieved within specification, reducing the risk of vibration, premature wear, and component failure while supporting reliable turbine operation

Pre-Alignment Verification

Inspection of mounting surfaces, base condition, and component positioning prior to alignment. Verification of soft foot, foundation integrity, and proper installation of generator supports and hardware.

Coupling Inspection

Inspection of coupling condition, including hub fitment, spline condition, and signs of wear or damage. Verification that coupling components are properly installed and ready for alignment.

Initial Alignment Measurement

Measurement of existing alignment condition using laser alignment tools or dial indicators.

Identification of vertical and horizontal offset, angular misalignment, and overall deviation from tolerance.

Alignment Adjustment

Adjustment of generator position using shimming, jacking bolts, or mechanical repositioning to achieve required alignment tolerances. Work is performed to correct both angular and parallel misalignment.

Bolt Torque & Securement

Verification and application of proper torque to generator mounting bolts following alignment.

Ensures that alignment is maintained under operating conditions.

Final Alignment Verification

Final alignment check performed after securement to confirm alignment remains within specification. Verification includes measurement of soft foot, repeatability checks, and confirmation of stable readings.

Runout & Rotation Checks

Verification of shaft rotation and coupling behavior to identify abnormal movement, binding, or mechanical interference.

Documentation & Reporting

Recording of initial and final alignment measurements, adjustments made, and final condition. Documentation supports traceability and confirms alignment was completed within required tolerances.