Improving Conveyor Belt Tracking to Reduce Downtime in Port OperationsCase Study - Belt Tracking Improvements - Port Operations, WA

A West Australian port operation experienced persistent conveyor belt tracking issues following a belt change, resulting in repeated trips on belt drift switches and disruptions to ship loading activities.

EnterpriseIS was engaged to identify the root causes of the tracking issues and implement corrective actions to stabilise conveyor performance.

Through a combination of on‑site reliability investigation and facilitated Root Cause Analysis (RCA), several contributing mechanical and process factors were identified and corrected—restoring reliable belt tracking and supporting improved operational throughput.

• Industry: Port operations / bulk materials handling
• Location: Western Australia
• Asset: Main conveyor system supporting ship loading
• Operating environment: High‑capacity port infrastructure with rapidly scaled throughput

The operation had significantly increased capacity over a four‑year period, initially focusing on business viability and cash flow. Once operations stabilised, attention shifted toward equipment reliability and process optimisation to support sustained performance.

Following a conveyor belt change, the site experienced three weeks of continuous belt tracking issues on a critical conveyor.

Key challenges included:

• Frequent belt drift switch trips, interrupting conveyor operation
• Disruption to ship loading activities
• Limited clarity on the true causes of mistracking
• Multiple potential contributing factors across mechanical setup, equipment configuration, and operating conditions

The client required a structured investigation to determine whether root causes existed and what actions were necessary to eliminate or mitigate ongoing operational impact.

EnterpriseIS applied a structured reliability engineering methodology to diagnose and address the belt tracking issues.

The engagement included:

1. On‑site investigation and data review
   An EnterpriseIS Reliability Engineer gathered operating data, reviewed maintenance and equipment history, inspected belt splicing records, and assessed belt tracking roller frames.
2. Facilitated Root Cause Analysis (RCA)
   A structured RCA session was conducted with key operational and maintenance stakeholders to identify system‑level and equipment‑level contributors.
3. Targeted mechanical and process corrections
   The RCA identified several contributing factors, including:

1. • The conveyor belt had not been commissioned in accordance with OEM practices
   • Modifications to the upper deflector chute negatively affected product presentation onto the belt
     • The chute was restored to its original configuration, producing immediate improvement
   • The lower chute had been replaced with one with different surface friction characteristics
   • Incorrect counterweight (CWT) height settings, which were corrected
   • Identification of difficult product types that historically contributed to chute blockages and belt mistracking
   • Increasing the counterweight mass to raise belt tension, with positive results

4. Throughput optimisation collaboration
   EnterpriseIS worked with chute designers to model product flow and material characteristics, supporting further throughput improvement opportunities.

This approach ensured both immediate stabilisation and longer‑term performance improvements.

The investigation and corrective actions delivered clear operational benefits:

• Elimination of continuous belt tracking issues
• Reduction in belt drift switch trips
• Improved stability of the main conveyor following recommissioning
• Restored confidence in conveyor performance during ship loading operations
• Identification of further opportunities to support increased plant throughput

These outcomes significantly reduced operational disruption and supported sustained port performance.

The success of this engagement was driven by:

• Applying root cause analysis rather than symptom‑based fixes
• Reviewing belt tracking as a system issue, not a single component failure
• Aligning mechanical setup with OEM commissioning practices
• Involving stakeholders to surface historical and operational insights
• Combining short‑term corrections with longer‑term optimisation thinking

This ensured belt tracking improvements were both effective and sustainable.