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Hoist Maintenance and Inspection: Ensuring Safe and Reliable Operation

2025-09-06

To ensure the continuous and safe operation of mine hoist equipment, it is crucial to implement preventive maintenance and regular inspections. This approach helps to identify and eliminate potential hazards in time. Preventive maintenance is a system based on the characteristics of hoisting equipment, focusing on inspection, servicing, and repair at fixed intervals.

In addition to routine care, main hoist operators should also participate in planned maintenance and repair work to keep the equipment in optimal condition.

  1. Daily Maintenance

Daily maintenance includes lubrication, routine inspections, and cleaning. Regular care and scheduled repairs reduce wear on mechanical parts, extend the service life of the hoist, and create a solid foundation for future maintenance while reducing the frequency of major repairs.

  1. Regular Inspections

Hoist inspections are divided into daily, weekly, and monthly checks, tailored to the performance, structure, working conditions, and maintenance experience of each hoist. Inspection results and repair details must be recorded in the maintenance logbook and signed by the responsible engineer.

  • Daily checks include examining fasteners, lubrication and braking systems, safety devices, depth indicators, rotating parts, and steel wire ropes.
  • Weekly checks add brake adjustments, safety device testing, and rope arrangement checks.
  • Monthly checks include opening gearboxes to inspect gears, adjusting safety systems, inspecting couplings and bearings, and replacing lubricants.
  1. Planned Maintenance

Hoist maintenance is categorized into minor repairs, medium repairs, and major overhauls.

  • Minor repairs: checking gears, bearings, lubrication systems, brake components, welding seams, couplings, and electrical parts.
  • Medium repairs: replacing bearings, adjusting gear engagement, renewing brake components, machining drums, and repairing electrical equipment.
  • Major overhauls: replacing shafts, gears, couplings, drums, and motors, and reinforcing foundations to restore full performance.

Planned repairs restore the equipment’s original performance, extend service life, and prevent accidents, ensuring continuous and safe operation.

  1. Lubrication

Lubrication plays a key role in reducing friction and wear, extending equipment life, and ensuring safe operation. Different lubrication methods include manual oiling, splash lubrication, oil rings, forced circulation, and oil mist systems. The lubrication system must be well-maintained to ensure proper oil quality, oil pressure, circulation, and cooling.

  1. Operator’s Self-Inspection and Minor Repairs

Operators must carry out basic inspections and repairs, including

  • Tightening loose bolts or pins
  • Maintaining lubrication on all moving parts
  • Cleaning brake systems and replacing worn pads
  • Adjusting safety devices such as overwind protection and slack rope detectors
  • Replacing worn coupling parts and faulty signal devices
  • Keeping the hoist room clean and organized
  • For more details about our mining hoists and services:
    📧 Email:  id@wf-cn.com
    📱 WhatsApp: +86 138 3921 2896
    🌐 Website: www.wf-cn.com

 

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