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HYDRAULICS AND GEAR CASE SERVICES

Hydraulic & Gear Case Repair – Coal Mining

At Alliance Energy Resources, LLC, we specialize in hydraulic and gear case repair services tailored to the demanding conditions of coal mining. Properly functioning hydraulics and gear cases are critical for equipment performance, safety, and productivity underground.

Specialized Hydraulic & Gear Case Repairs

We service a wide range of mining equipment and components, including:

  • Joy Planetary “CAT Drive” (Final Drive)

  • Scoop Systems:

    • Bucket Lift

    • Steering Lift

    • Battery Lift

  • Shield Hauler Cylinder

  • Caterpillar & Joy Miner Tail Lift Cylinder

  • Shuttle Car Wet Brake

  • Fletcher Bolter Trac Idler

  • Joy Miner Trac Idler

  • CAT Trac Idler

  • Joy & CAT Miner Head Jack (“Ripper Jack”)

  • Scoop Speed Reducer

  • Fletcher Roof Ranger II Valve Banks

  • Fletcher Boom Lift Cylinder

  • Fletcher Drill Feed Cylinder

  • Joy Miner Lift Cylinder

  • Joy Pan Jack

  • Fletcher Foot Jack

  • Fletcher Drill Header (“Fletcher Drill Pot”)

  • Miner POTS

  • Inspection & Diagnosis – Detecting worn, damaged, or leaking components in harsh mining environments

  • Seal & Gasket Replacement – Restoring hydraulic integrity to prevent costly downtime

  • Gear & Shaft Repair/Replacement – Ensuring smooth and reliable operation under heavy loads

  • Case Cleaning & Reconditioning – Removing debris, corrosion, and wear caused by mining conditions

  • Complete Gear Case Rebuilds – Disassembly, replacement of worn parts, reassembly, and functional testing

  • Preventive Maintenance – Scheduled checks to maximize equipment life and minimize failures

  • Emergency Repairs – Rapid response services to keep critical mining equipment running

Our Comprehensive Services

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