vST301 – Principles Of Steam Turbine Maintenance

vST301 – Principles Of Steam Turbine Maintenance

5 days (4-hours sessions) - 20 PDH Credits Awarded



Planning, scheduling, and implementing a steam turbine outage can be one of the most demanding tasks you perform.  Especially, when problems are found that were not anticipated (and there are always these kinds of problems).  In the class we will learn to better plan the work (from a technical perspective).  Once the work is planned, as we know, the next task is to work the plan.  Here is where the surprises can occur.  Some components will not disassemble according to procedure – what are your options?  Some components do not meet OEM specifications – what are your options?  Some components don’t go back together according to procedure – again, what are your options?  These options usually involve repair / replace / reuse decision making.  Effective decision making is a function of your knowledge of the importance of this component, your understanding of recommended tolerances, your understanding of how different options can impact the schedule and/or cost of this outage.  Complicating this issue is a strong need to make outages shorter in length, AND longer in frequencies between outage.  It’s simple:  You need to do more with less time and money available.  This course is intended to help you (or your staff) make better steam turbine maintenance decisions. Over the past couple years the most commonly received comment for our traditional steam turbine maintenance training was, "I wish I had taken this course 10-years ago."  Well, we’re planning on the same comments for the VILT (virtual instructor led training) sessions.


Upon completion of the course the participants should be able to:
  1. List steam turbine operational and safety issues that typically cause the scheduling of a maintenance outage.
  2. List the considerations that must be included when developing an outage plan or schedule.
  3. Describe the major considerations when making a replace/reuse/repair decision.
  4. Describe the procedures necessary for the safe and effective disassembly and reassembly of steam turbine components.
  5. Describe the purpose and operation of the major steam valves.
  6. Describe the disassembly and reassembly of the major steam valves.
  7. List the five (5) most common causes of steam path damage and their possible affects upon future operation.
  8. Describe three (3) common causes of steam path defects and their impact upon turbine efficiency and reliability.
  9. Describe the type and purpose of clearance and alignment measurements commonly taken during the disassembly and reassembly of a steam turbine.
  10. Describe the measuring instruments used to determine steam turbine component clearances.
  11. List and describe the various non-destructive examinations performed during disassembly of the steam turbine.
  12. Describe the common procedures for cleaning and inspecting steam turbine components.
  13. Describe the criteria used to evaluate steam turbine defects.
  14. Describe the common repair methods for repair of steam turbine components.
  15. Describe the purpose of conducting a steam path audit, and how that audit would be accomplished.
  16. Describe the common types and operation of journal and thrust bearings.
  17. Describe the common causes of bearing damage.
  18. Describe the measurements required to determine oil clearances.
  19. Describe common bearing inspection and repair procedures.
  20. Describe the considerations to be taken into account when evaluating alignment of steam turbine components.
  21. Describe the methods used to properly align steam turbine components.
  22. Demonstrate the ability to perform the necessary calculations to align steam turbine components.

Course Synopsis

Monday 1 hour – Introduction 1 hour – Planning, Scheduling & Decision Making 2 hour – Turbine Shells, Casings & Rotors: Disassembly & Reassembly Tuesday 2 hours - Turbine Shells, Casings & Rotors:  Inspection and Component Repair 2 hours - Journal & Thrust Bearings:  Disassembly/reassembly procedures, inspection, and typical types of distress as well as causes. Wednesday 1 hours – Couplings: Disassembly/reassembly procedures, inspection techniques, and typical types of distress as well as causes. 3 hours - Steam Valve Maintenance:  Disassembly/reassembly, how to inspect, what are the typical types of distress, what measurements to take, and what they mean. Thursday 4 hours - Alignment: How to calculate and make moves for stationary equipment such as diaphragms and inner shells. How to take coupling rim/face readings, how to calculate moves to correct for coupling misalignment, and how to calculate and make moves to bearings to accomplish alignment objectives. Friday 3 hours - Job Wrap-Up:  Learn what kind of data should be recorded following the outage, and what checks to make as we prepare to return the equipment to service. 1 hour – Course Conclusion

Course dates / fee

This course is scheduled to be delivered in five one-half days.
  • $1095 per registrant with enrollment at least 2-weeks prior to class date. This is to allow time to ship textbooks to registrant.  Registration inside the 2-week window will be charged an additional $95.
  • See TurbineGeneratorTraining.com for latest information on the course dates. Scheduled dates, as of this writing, are as follows:
    • May 17-21
    • June 14-18
    • July 12-16
    • August 16-20
    • September 13-17
    • December 6-10
HPC Technical Services reserves the right to cancel any course/seminar within 10-working days of the scheduled date.  Fees are 100% refunded or credited to another Seminar (clients' choice) if HPC should cancel any Seminar.

Frequently asked questions

  • Will HPC Technical Services bring this course to our location (or provide a VILT) for our personnel only? YES, call or email Stephen Parker, Stephen@TurbineGeneratorTraining.com for a price quotation.
  • Will HPC Technical Services customize the presentation to suit our particular needs?
  • Is HPC Technical Services' textbook available for purchase as a reference document?   This significant textbook is available, in full COLOR, for $219 + S&H.
  • Can HPC Technical Services provide "Technical Assistance" in the planning and implementation of our outages? Yes we can.  Call or contact Stephen Parker, Stephen@TurbineGeneratorTraining.com for our rate sheets and any further information required.

What you will receive:

  1. 1 copy of HPC Technical Services' full COLOR textbook, Steam Turbine Maintenance, a $219 value, as written by Harold Parker, with technical support by Ray Militello, Robert Doughty, Doug Lemmo, Bill Newbury and John Mitchell. The textbook will be sent to the registered personnel approximately 2-weeks prior to course date.  Recognize that registration needs to be more than 2-weeks prior to scheduled course date to ensure the text will arrive prior to course date.
  2. A "Certificate of Completion" with 17.5 PDH.