Root Cause Analysis: Encoder Signal Loss — Cable Shielding, EMI and Connector Degradation
A signal loss from the encoder may be caused by shielding wear, corrosion on the connector, and exposure to EMI. The analysis reveals that lack…
Root Cause Analysis
Expert root cause analysis articles covering failure investigation, diagnostic methodologies, and prevention strategies for industrial equipment.
Analysis of VFD-induced bearing currents: Vibration analysis, EDM damages and mitigation strategies
VFD-induced bearing currents lead to increased bearing temperatures and EDM damages. A systematic analysis identifies the causes and provides measures for prevention. Switch to UNITEC-D…
Premature Failure of Spherical Roller Bearings: Root Cause Analysis and Prevention
Premature failure of spherical roller bearings can lead to costly downtime. This article presents a forensic analysis of a Heidenhain ROQ425-512 bearing failure, identifying key…
Root Cause Analysis of Conveyor Tracking Problems: Corona, Idler Alignment and Load Distribution
A conveyor system experiences recurring lateral deflection, reducing MTBF from 1,200 to 600 hours. Analysis reveals causes such as improper idler alignment, uneven load distribution,…
Root Cause Analysis: Encoder signal loss and degradation of connections in industrial drives
Root Cause Analysis of Encoder Signal Loss in Industrial Drives. The influence of electromagnetic interference (EMI), degradation of cable shielding, and oxidation of M12 connector…
Root Cause Analysis of Oil Leaks in a Gearbox: Selection of Seals, Ventilation and Mounting Errors
An oil leak in the Parker 6901-00-G gear box may indicate problems with seals, ventilation, or installation. This article analyzes root causes and offers practical…
Failure Analysis: Oil Leak on Industrial Gearbox – Case of FIBRO 2061.44.020.060.10
1. Introduction Maintenance workshops in the aerospace and energy sectors regularly report cases of oil leaks on high-precision reducers operating continuously. A recent incident on…
Analysis of the causes of transmission belt overheating: 5 common causes and diagnostic flow
Overheating of drive belts is a key failure indicator. This article identifies the 5 main causes and provides a practical diagnostic flow for maintenance technicians.…
Analysis of linear guideway wear: contamination, preload errors and lubrication gaps
Linear guide wear is often due to contamination, preload errors, and lubrication gaps. A systematic root cause analysis and preventive measures are essential. Further information…
Electric motor winding fault: insulation clearance, overload and voltage imbalance
Motor winding failures in VICKERS DG4V33CMUH760 are often caused by insulation clearance, overload and voltage imbalance. A systematic investigation method and predictable maintenance procedures are…
Forensic Engineering Analysis: Pneumatic Valve Sticking in the Vickers 1U2669 Assembly
1. Introduction An automotive component manufacturing plant in the West Midlands, UK, recently experienced recurring line stoppages on a high-speed stamping press transfer mechanism. The…
Root Cause Analysis of Increased Backlash in Ball Screw Arrangement: Loss of Preload, Contamination and Lubrication Failure
The increase in backlash in ABB ball screw 1KGT038912R0001 may be caused by loss of pre-load, contamination, and failure in lubrication. Root cause analysis reveals…