Introduction:

Steam and gas turbines require structured dismantling and reassembly procedures to ensure safe operation and long term equipment reliability. Each stage from alignment and shim correction to slope checks and coupling verification demands strict technical control and documentation. This training program presents defined methods for dismantling HP, IP, and LP modules, aligning turbine components, correcting swing errors, and completing field documentation. 

Program Objectives:

By the end of this program, participants will be able to:

• Classify the dismantling and reassembly procedures of steam and gas turbine modules.

• Explore coupling alignment methods and shim correction systems.

• Analyze bearing and centering requirements for field-level turbine adjustments.

• Evaluate equipment condition using slope checks, roll checks, and horn drop results.

• Identify the documentation protocols for assembly records and measurement tracking.

Target Audience:

• Technical field advisors in turbine overhaul projects.

• Gas and steam turbine engineers.

• Site maintenance supervisors.

• Rotating equipment specialists.

• Mechanical documentation staff in power plants.

Program Outline:

Unit 1:

Module Based Disassembly Structure:

• Disassembly sequence for HP, IP, and LP turbine modules.

• Identification of critical components for handling and tagging.

• Coordination procedures between field teams and technical offices.

• Risk containment structures during turbine breakdown.

• Documentation mapping strategies for component tracking.

Unit 2:

Coupling Alignment and Shim Correction:

• Alignment frameworks between turbine sections and generators.

• Shim calculation, installation, and documentation methods.

• Common misalignment patterns and structural correction models.

• Importance of using dial indicators and laser tools for coupling checks.

• Tolerance mapping and historical alignment deviation records.

Unit 3:

Centering, Bearing, and Slope Checks:

• Centering techniques for bearing housings and journals.

• Bearing correction conditions and axial float evaluation.

• Slope measurement frameworks and centenary inspection guidelines.

• Roll check strategies for rotor stability and balance.

• Horn drop testing procedures for vertical clearance evaluation.

Unit 4:

Swing Checks and Bolt Tightening Procedures:

• Swing clearance benchmarks and interpretation models.

• Correction techniques for lateral movement and swing imbalances.

• Controlled bolt tightening sequences and tool specifications.

• Impact of uneven torque and related misalignments.

• Key steps for recording tightening data using torque log sheets and verification forms.

Unit 5:

Institutional Reporting and Field Documentation:

• Standard measurement log templates and data recording steps.

• Assembly checklists for field and office coordination.

• Frameworks for documenting non-conformities and institutional corrective procedures.

• Handover documentation requirements for third-party reviews.

• Integration process of dismantling and assembly records into asset systems.