Maintenance of hardness tester

    1. When transporting the hardness tester, the weights and the indenter must be removed, and the shockproof rubber pad must be clamped between the indenter seat and the sample table; the original packaging should be restored for long-distance transportation.
    2. The power supply should be cut off during any debugging and inspection, such as loading and unloading weights, removing the upper cover, plugging and unplugging cables, and opening the side door for inspection.
   3. It is forbidden to switch the test force when the indenter is in contact with the sample being tested. 4. The indenter
   should be loaded and unloaded carefully to ensure that the tip is not damaged or contaminated, and the installation surface is clean and free of foreign matter. If it is not used for a long time, it should be removed and properly stored, and attention should be paid to rust prevention.
   5. The surface of the sample table and the standard hardness block should be clean and free of pollution, scratches, rubs, and bumps; anti-rust oil should be applied to prevent rust when stored.
   6. During the test, the sample to be tested must be placed stably and reliably supported to ensure that there is no displacement or deformation during the test.
   7. Dust and corrosion media should be prevented in the daily working environment and after shutdown. In some humid areas, attention should always be paid to rust prevention.
   8. The lifting screw of the sample table should be lubricated regularly. The specific method is: remove the sample stage and the protective ring, loosen the screw cover, inject a few drops of light lubricating oil into the screw, then turn the hand wheel, repeatedly raise and lower the screw to make the lubricating oil evenly distributed. Finally, reinstall the cover and other items. Note that the lubricating oil should not be injected too much.