• Mon - Sat 10.00 - 18.00

Overhauling Services

Specialized Annual Overhauling (AOH) and Capital Overhauling (COH) to maintain, restore, and upgrade critical industrial assets.

Elite delivers structured, safety-driven outage programs that keep plants reliable, efficient, and compliant. From annual planned shutdowns to full life-extension overhauls, we manage the complete cycle—planning, execution, testing, and handover—across power, cement, copper, and solar facilities.

AOH (Annual Overhauling)

Annual Overhauling is a scheduled, routine maintenance process carried out once a year to keep machinery and systems running smoothly. It involves planned shutdowns to inspect, clean, and repair equipment before small issues turn into major problems.

  • Inspection and assessment of key equipment and systems
  • Cleaning, lubrication, and calibration of parts
  • Safety checks and performance testing
  • Replacement of worn-out or minor components
  • Preventive measures to minimize unexpected breakdowns

Capital Overhauling (COH)

Capital Overhauling is a comprehensive and extensive overhauling process, typically performed every few years. Unlike AOH, COH involves major repairs, refurbishments, and upgrades to restore or extend the lifespan of critical assets.

  • Complete dismantling of major equipment or systems
  • In-depth inspection and non-destructive testing (NDT)
  • Replacement or refurbishment of major components
  • Upgrades to improve efficiency, capacity, or safety
  • Reassembly, precision alignment, and commissioning
  • Final performance testing and certification

Our AOH/COH Methodology

  • Pre-Shutdown Planning

    • Asset health review, risk assessment, job hazard analysis

    • Outage work packs, critical-path scheduling, permit planning (LOTO, confined space, hot work)

    • Spares & consumables planning; mobilization of tools, cranes, scaffolding

  • Execution & Quality Control

    • Safe isolation (LOTO) and systematic disassembly

    • NDT & diagnostics: UT, MPI/DPI, borescope, vibration analysis, oil analysis, thermography, laser alignment

    • Repair/replace/refurbish, precision reassembly, torqueing & alignment

    • ITP/QA: inspection test plans, hold/witness points, dimension & tolerance checks

  • Commissioning & Performance Testing

    • Dry/wet runs, interlock checks, calibration & loop checks

    • Load/performance trials, emissions/efficiency verification (as applicable)

  • Handover & Reporting

    • Punch-list closure, as-built documents, test certificates

    • Comprehensive AOH/COH report with findings, spares consumed, tolerances measured, and recommendations

    • Next-cycle maintenance plan & spares forecast; operator refresher training (if required)