PEMELIHARAAN STEAM TURBINE JOURNAL BEARING - NAZAR ADAM A. - PT.PJB UPHT

Summary

This video script provides a detailed step-by-step guide on performing maintenance and inspection tasks for mechanical systems, specifically focusing on the disassembly, inspection, and reassembly of bearings and associated components. The script highlights the importance of preparing the necessary documentation, using the right tools and protective equipment, and adhering to standard operating procedures. It emphasizes teamwork, safety protocols, and the thorough evaluation of equipment to ensure it meets quality standards. The script concludes with reporting findings and ensuring equipment is ready for use.

Takeaways

• 😀 Prepare all necessary documentation before starting the task.
• 😀 Ensure all safety equipment, such as gloves and masks, are available and worn properly.
• 😀 Check that all measuring tools, like micrometers, are calibrated and ready for use.
• 😀 Review the work instructions carefully to understand the process before starting.
• 😀 Coordinate with the team to ensure a smooth and efficient workflow.
• 😀 Verify that all equipment, such as cranes, are functioning properly and are safe to use.
• 😀 Disassemble components systematically, starting with the covers, and carefully measure clearances.
• 😀 Inspect for any abnormalities in components, such as cracks, and use non-destructive tests (e.g., ultrasonic tests) for further analysis.
• 😀 Reassemble the components, ensuring all bolts are tightened to the correct specifications.
• 😀 Report any issues or non-conformities to supervisors and document the work performed.
• 😀 After completing maintenance, ensure the equipment is ready for operation and notify the appropriate personnel.

Q & A

What is the first step before beginning the mechanical work on the equipment?

The first step is to ensure that all related documents are ready and reviewed. These documents are necessary in case of any issues or abnormalities that may arise during the process.

What types of personal protective equipment (PPE) should be worn during the work process?

The required PPE includes gloves, a mask, and safety equipment like measuring tools (e.g., micrometers) to ensure personal safety and accurate measurements during the task.

Why is it important to understand the work instructions before starting the procedure?

Understanding the work instructions is crucial because it ensures that the tasks are completed according to the set standards, safety protocols, and correct procedures, preventing any errors or accidents.

How should the team coordinate during the process?

The team should coordinate by ensuring roles and responsibilities are clear, and all tools and equipment are ready. This ensures that the workflow is efficient and optimal.

What are the initial steps in the disassembly process of the equipment?

The initial steps in the disassembly process include ensuring that all tools are calibrated properly, inspecting the overhead crane, and understanding the type of bearing (e.g., elliptical journal bearing or tilting bearing).

What is the importance of measuring the clearance between the pedestal and the bearing?

Measuring the clearance is important to ensure that the clearance meets the required standards, which is essential for the proper functioning and safety of the equipment.

What should be done if any cracks or damage are detected during the inspection?

If cracks or damage are detected, non-destructive testing (such as ultrasonic testing) should be performed to assess the extent of the damage before proceeding with further repairs or reassembly.

How should the reassembly process be carried out after disassembly?

During reassembly, ensure that all components are placed correctly, and bolts and fasteners are tightened according to the manufacturer's manual or relevant industry standards (e.g., British Standards Institute).

Why is it important to verify the torque specifications of the turbine parts?

It is important to verify the torque specifications of the turbine parts to ensure that they are tightened to the correct level, which prevents malfunction, damage, or safety hazards during operation.

What is the final step after completing the maintenance process?

The final step is to report the findings to the relevant stakeholders, notify the PT officer that the equipment is ready, and coordinate with the operator to ensure the equipment is prepared for the next phase of operation.