1. The validity period of the spring testing machine’s indication error check once under normal use conditions is one year.
2. When the spring testing machine is in operation, especially when unloading, don’t let go, so as not to produce severe vibration and affect the accuracy of the testing machine.
3. Lubricating oil should be frequently added to the lifting rack of the testing machine and the pressure injection oil cups.
4. After the testing machine is used, the machine clothing should be covered to prevent dust from falling into the machine.
5. In order to protect personal safety, the testing machine should be properly grounded.