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E-594 - Maintenance & Inspection of Rotating Machinery

E-594 - Maintenance & Inspection of Rotating Machinery

10 days
This course is not scheduled.
Who should attend?


    • Engineers, supervisors and maintenance technicians, mechanical work preparers, technicians from new works department, inspection, oil and petrochemical industry methods.


  • Proficiency
  • This training underlines the general technologies of rotating machinery and their auxiliaries.
  • It covers the functioning of the machines in their process application, the mechanical aspects, wears and ruptures, lubrication as well as the inspection for functional anomalies.
  • Therefore it provides the necessary knowledge to inspect the machines and set up a diagnosis.
Learning Objectives
  • Upon completion of the course, participants will be able to:
  • know the functioning of the machines and their components,
  • know the mechanical effects induced by a change in operating conditions,
  • master the failure modes of the different components,
  • know how to avoid sudden failures and how to carry out diagnosis on the machines.
Course Content


3 days

  • Fields of use and characteristics of the main rotating machines.
  • Reliability of the different machines.
  • Technological descriptions.
  • Functioning (2 days)
  • Operating parameters, meaning, how to interpret changes: pressure, temperature, flow rate, speed, head, efficiency…
  • Characteristics of the machines, comparisons.
  • Effect of external process-related parameters: composition of the products, modified suction or discharge conditions.
  • Mechanical aspect:
  • Stresses in the machine in normal operation and in abnormal conditions: operating limits.
  • Case of internal stresses: thrust, radial reaction, vibrations.
  • Case of external stresses: dilatation, vibrations, casing and supporting.
  • Influence on the machine lifespan.
  • Operating conditions (1 day)
  • General operating rules to comply with, effect on reliability.
  • Associated risks.


3 days

  • Bearings (1 day)
  • Ball bearings:
  • Description of the different rolling elements; identification, internal clearances, assembly.
  • Calculation of lifespans: effect of the feed, lubrication, humidity, clearances.
  • Hydrodynamic bearings:
  • Plain and pad bearings: description, functioning.
  • Incidents, problems of instability.
  • Magnetic bearings:
  • Description, functioning.
  • Lubrication of the bearings.
  • Shaft outlet sealing systems (1 day)
  • From braided seals to mechanical seals: functioning, description of the different types, conditions of stability, auxiliaries.
  • Application to pumps and compressors.
  • P&ID study of a complex mechanical seal of a centrifugal compressor.
  • Rotors and shafts (0.5 day)
  • Balancing: imbalance, eccentricity, balancing class.
  • Shaft geometric controls.
  • Couplings and alignments (0.5 day)
  • Different types of couplings.
  • Transmission stresses.
  • Alignment of the shafts of machines.


4 days

  • Diagnosis from process data (1 day)
  • Determining a functioning point.
  • Checking the performance: head, flow rate, efficiency.
  • Diagnosis of a failure by vibrations and oil analyses (1 day)
  • Measuring the vibrations: initiation, global levels, spectrum, frequency/failing element association.
  • Oil analyses: water content, water and air separation, viscosity, acid value, chemical analyses, ferrography.
  • Application: examination of different oil spectrum and reports of analysis.
  • Knowledge of wear and rupture phenomena (1 day)
  • Fundamentals of inspection and deduction.
  • Friction and materials, roughness, surface condition, fretting corrosion.
  • Main rupture modes (stress, fatigue, impact, creep…).
  • Notion of elastic resistance, plastic resistance, resilience.
  • Frequent problems: detection and troubleshooting (1 day)
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Ways & Means
  • Functional approach and practice of rotating machinery.
  • Reminder of the methods and fundamentals of assembling, disassembling, clearance and dimensional control.
  • Illustration with case studies and analysis of information folders.