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What are the main tasks involved in secondary maintenance?

1 Answers

Foster

07/30/25 4:44am

Secondary maintenance is a form of inspection and repair primarily aimed at maintaining the technical condition of equipment. Below are the relevant details: 1. Secondary Maintenance: The workload of secondary maintenance falls between medium and minor repairs. It involves completing some tasks from minor repairs as well as a portion of medium repairs, mainly focusing on repairing or replacing worn or damaged parts of the equipment. 2. Lubrication Points: Secondary maintenance includes all the tasks of primary maintenance, plus thorough cleaning of all lubrication points. It involves checking the quality of lubricating oil in conjunction with the oil change cycle, performing cleaning and oil changes. It also includes inspecting the dynamic technical condition and key accuracy of the equipment (such as noise, vibration, temperature rise, oil pressure, ripples, surface roughness, etc.), adjusting installation levels, replacing or repairing parts, scraping and repairing worn guide rail surfaces, repairing and adjusting areas where precision has deteriorated, calibrating installed instruments, repairing safety devices, cleaning or replacing motor bearings, and measuring insulation resistance, among other tasks.

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