In the maintenance of automotive air compressors, the overall maintenance focus is on the corresponding degree of operation, and the operation time is also determined in advance. The focus of routine maintenance is on routine inspections and care, and timely detection of faults and exclusion. The focus of regular maintenance is on inspection and maintenance during a fixed period of time. Yuyao Linsheng gave an introduction separately.

  
Overall maintenance

  
In the overall maintenance, when there are parts to be replaced, the air compressor should be turned off first, the accumulated pressure will be released, and the end caps, nuts and other components will be removed. When it is necessary to replace the oil during the running-in period, clean the oil return valve and replace the oil filter, it is necessary to pay attention to the operation time after the air compressor is operated for 500 hours for the first time. When the control line is inspected, it needs to be carried out 50 hours after the air compressor is turned on, and an inspection is required every six months.

  
Routine maintenance

  
The routine maintenance work includes the following steps: checking the working condition of the operating switch, checking whether the oil level of the compressor lubricating oil is normal, and ensuring sufficient oil quantity. Check the abnormal sound and oil leakage of the running unit to check if there is an alarm fault in the computer controller. In addition, the front and back surfaces of the air compressor surface and the surface of the cooler, especially the dust at the four corners and the blades of the fan, should be cleaned frequently to ensure the heat dissipation performance of the unit and prevent the unit from being corroded.

  
Regular maintenance

  
Regular maintenance includes monthly repairs, quarterly repairs, and half-year repairs. If necessary, a comprehensive overhaul is required.

  
The monthly repairs include: checking the air compressor exhaust temperature switch is good, measuring the quality of the lubricant to see if it deteriorates. Clean the dust inside the electric control box and inspect all the hoses for cracks and aging. Apply grease to the bearings of the motor every two months.

  
The main repairs include cleaning the air filter core and oil filter core and filtering the air compressor oil.

  
The half-year repairs are: cleaning and replacing the oil separator core, cleaning the air cooler and oil cooler. In the overhaul process, a comprehensive inspection and maintenance of the air compressor is required. This type of maintenance is generally used when the air compressor has been running for a long time or abnormal operating conditions. It includes cleaning of the motor, rotor and vane, replacement of damaged valve bodies and oil separator cores, and cleaning of the lubricating oil circulation system.

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