mobile Diagnosis of Rotating Machinery English

Summary of course Summary of course

Become familiar with the key points regarding diagnosis of rotating machinery such as pumps, fans, and compressors.

Target Production site(factory) new recruits/maintenance personnel, plant operators/on-site workers, supervisors, and managers
Expected learning time 3時間
Shortest execution time 70分

Aim and feature of courseAim and feature of course

Learn basic knowledge about abnormalities in rotating machinery which manifest as abnormal noises, temperature, and vibrations.
Learn the knowledge needed in order to perform equipment diagnosis.

Curriculum Curriculum

Subject・Main items Main items
Introduction to the Course and Summary PDF
1.Never Allow the Cavitation!
  • 101 The Cavitation
  • 102 Bearing Vibration Check
  • 103 Looseness of Bolts
  • 104 Inspection of the Intake Side
  • 105 Inspection Item of Intake Side
  • 106 Pump Noises: Abnormal and Normal
2.Efficiency Drops
  • 201 Turbine Pumps and Efficiency
  • 202 Efficiency Drops and Power Loss
  • 203 Efficiency Characteristics Graph
  • 204 Water Flow in the Turbine Pump
  • 205 Water is Flowing Backward
  • 206 Liner Ring and Efficiency Drop
  • 207 TEST:Liner Ring Replacement
  • 208 Bushes and Efficiency Drop
  • 209 TEST:Bushes Replacement
  • 210 Replacement of Small Parts
  • 211 Repair of Before and After
3.Vibration Diagnosis
  • 301 Is Cavitation Occurring?
  • 302 TEST: Determine
  • 303 Measurement of Vibration
  • 304 Determine: Change in Amplitude
  • 305 Closer Examination
  • 306 Motor side Vibration Waveforms
  • 307 Movement of Abraded Impeller
  • 308 Waveforms and FFT Analysis
  • 309 Measurement and Calculation
  • 310 Disassembly of Pump
  • 311 Replacement of Bearing
4.Fan Unbalance
  • 401 Abnormal Noise Occurs
  • 402 Abnormal Noise
  • 403 Normal Sound
  • 404 TEST: Reading Total Amplitude
  • 405 Vibration Assessment Standard
  • 406 Bearing Frequency Calculation
  • 407 Fan Revolution Frequency
  • 408 Summary of Inspection
  • 409 Mounting Balance - Check Results
  • 410 Meaning of the Value 'Vr'
  • 411 Looseness of Fixed & Fitted Parts
  • 412 Stop Nuts and Tooth-Washers
  • 413 A Change in Running Sound
  • 414 A Day's Change in Fan Revolutions
  • 415 Resonant Revolution Frequency
  • 416 Resonance
  • 417 Frequent Resonance and Fatigue
  • 418 Impeller Breaking
5.Blower Surging
  • 501 Surging Occurrence
  • 502 Surging Occurs
  • 503 QUIZ: Where to Check First?
  • 504 Checking Blower Characteristics
  • 505 Blower Efficiency
  • 506 TEST: Throttle Valve Fitting
  • 507 Fitting Throttle Valve Efficiency
  • 508 Cross-Section of Blower
  • 509 Vane and Vane Control Device
  • 510 Vane Movement
  • 511 Examining Operating Program
6.Lubricants Show Abnormalities
  • 601 Discoloration of Lubricating Oil
  • 602 ASTM Color Tester
  • 603 Partial High Temperature
  • 604 Screw Compressor: Lubrication
  • 605 Screw Compressor: Structure
  • 606 Screw Compressor: Principle
  • 607 Screw Compressor: Cycle
  • 608 Rotor Contacts with Casing
  • 609 Abnormal Contact of Rotors
7.Simplified Diagnosis Procedure
  • 701 Overview of Equipment
  • 702 Vibration Measurement Location
  • 703 Vibration Measurement Method
  • 704 Velocity Assessment Standard
  • 705 Acceleration Assessment Standard
  • 706 Result of Judgment
  • 707 Simplified Diagnosis Report
8.Precision Diagnosis Procedure
  • 801 FFT Analyzer
  • 802 Vibration Measurement Preparation
  • 803 Vibration Measurement Method
  • 804 Data Analysis for Velocity Mode
  • 805 Acceleration Mode & Envelope Mode
  • 806 Damaged Bearing Section
  • 807 Condition Diagnosis Report
  • 808 Abnormality Cause of Machine
report
At the End of the Course
Try to Step Up