Daily maintenance methods for parallel axis H4HH7-355-B industrial gearbox

The following are the daily maintenance methods for the parallel axis H4HH7-355-B industrial gearbox:

Check oil level: Regularly check the oil level of the gearbox to ensure that the oil level is within the normal range. Generally speaking, the inspection should be carried out after the gearbox has stopped running and the oil temperature has cooled down. If the oil level is too low, it is necessary to add lubricating oil that meets the regulations in a timely manner; If the oil level is too high, it may cause problems such as oil overflow during gearbox operation, and it is necessary to drain the oil appropriately.

Oil inspection: Observe the color, transparency, and odor of lubricating oil to determine whether the oil has deteriorated, been contaminated, or mixed with impurities. If any abnormalities are found in the oil, timely oil quality testing should be carried out, and the decision to replace the lubricating oil should be made based on the test results. At the same time, regular (usually every few hours of operation or every few months) physical and chemical performance testing of oil products should be conducted, such as viscosity, acid value, moisture, flash point and other indicators, to accurately grasp the quality status of the oil products.

Replace lubricating oil: According to the instructions of the gearbox, regularly replace the lubricating oil. In general, a new gearbox should undergo its first oil change after running for a certain period of time (such as 200-300 hours), and then be replaced at regular intervals or work cycles thereafter. When replacing the lubricating oil, the old oil inside the gearbox should be drained, and the inside of the gearbox should be rinsed with clean oil before adding new lubricating oil.

Check the sealing: Check all sealing parts of the gearbox, including the shaft seal, box joint surface, oil plug, etc., to ensure good sealing and no oil leakage. If oil stains or leaks are found at the seal, the cause should be promptly investigated, and damaged seals should be replaced or sealed.

Tightening bolts: Regularly inspect the foundation bolts, end cap bolts, bearing seat bolts, and other connecting bolts of the gearbox to ensure that the bolts are not loose or missing. If there is looseness, it should be tightened in a timely manner to prevent problems such as increased gearbox vibration and component displacement caused by loose bolts.

Cleaning the gearbox body: Keep the surface of the gearbox body clean, regularly remove dust, oil stains, and debris from the body to facilitate the heat dissipation of the gearbox. At the same time, check whether there are cracks, deformations, and other damages in the box, and promptly handle any abnormalities.

Check the coupling: Check whether the connection of the coupling is firm, and whether the elastic components are worn or aged. If there is looseness, the connecting bolts should be tightened in a timely manner;