Cause analysis: Increase in backlash in Parker 8BZ.SS ball screws
An increase in play in Parker 8BZ.SS ball screws often indicates lubrication or contamination problems. This article provides a systematic root cause analysis and a…
Cause Analysis
Specialized articles on root cause analysis: failure investigation and prevention strategies.
Coupling Failure Analysis: Misalignment, Overload and Fatigue in Siemens G1157
This technical analysis investigates recurring failures in the Siemens G1157 coupling, identifying misalignment and overload as the main causes. Provides a practical guide to diagnostics…
Root Cause Analysis: Seal Failures and Oil Leaks in Critical Hydraulic Systems
A forensic investigation into the leak of a VICKERS DG4V3 hydraulic distributor reveals root causes linked to the ventilation of the system and the choice…
Root Cause Analysis: Rexroth 1605-804-31 Pneumatic Valve Blockage
Forensic analysis of Rexroth 1605-804-31 pneumatic valve block in an industrial setting, focusing on moisture contamination and lubricant degradation. Includes diagnostic checklist and prevention strategies…
Forensic analysis: Collapse of filter elements and the impact on hydraulic control valves
A forensic analysis of filter element collapse in hydraulic systems shows how pressure spikes damage the Vickers DG4V-5-2-CJ-MVH6-20 valve. Find out how systematic differential pressure…
Analysis of Coupling Failures in Hydraulic Drive Systems: A Forensic Examination of Misalignment, Torque Overload, and Fatigue Cracking
1. Introduction An unexpected shutdown of a critical production line in a well-known DACH production company led to the immediate initiation of a forensic investigation.…
Root Cause Analysis: Premature Failure of Spherical Roller Bearings in Industrial Applications
Forensic analysis of premature failure of ABB bearing 3BSE000435R1. Identification of root causes, corrective actions and prevention strategies to optimize reliability in industrial transmission systems.
Failure Analysis: Pitting and Spalling of Teeth Under Stress
A forensic analysis of gear failure by pitting and spalling, highlighting the critical role of lubrication and alignment, with a diagnostic approach based on data…
Analysis of conveyor belt tracking problems: systematic root cause identification and technical countermeasures
This guide analyzes the technical causes of conveyor belt misalignment and offers systematic solutions as well as a practice-oriented checklist for technicians for maintenance and…
Root Cause Analysis: Frequency Inverter Induced Bearing Currents and Mitigation Strategies
This technical article investigates the root cause of premature bearing failure in VFD-driven motors, detailing evidence of damage from EDM and common mode voltages. Presents…
Root cause analysis: Pneumatic valve blockage – contamination, moisture and lubrication failures
A systematic analysis of pneumatic valve failure mechanisms due to contamination and moisture based on signal data from the Allen-Bradley 1756-IF8H.
Technical analysis of fatigue failure of ABB shaft key joint 3HAC8578-1
Fatigue failure analysis of keyed shaft connection ABB 3HAC8578-1. The causes of degradation, the influence of tolerances on durability and diagnostic methods are considered.