Maintenance and maintenance of singular spring tester

, The validity period for the spring tester to verify the value error once under normal use conditions is one year.
2. Do not let go of the spring tester when operating, especially when unloading, so as not to cause severe vibration and affect the accuracy of the tester.
3. Lubricating oil should be added frequently to the lift rack of the test machine and the pressure-injected oil cups.
4. After use, the test machine should be covered with a machine clothes to prevent dust from falling into the machine.
5. In order to protect personal safety, the test machine should be properly grounded.