维护保养
Maintenance
1、弹簧试验机在正常使用条件下其示值误差校验一次的有效期为一年。
1. The validity of the spring tester's indication error check once is one year under normal operating conditions.
2、弹簧试验机在操作使用时，特别是卸荷时不可猛松手，以免产生剧烈震动而影响试验机的精度。
2. Spring tester should not slacken hands when operating, especially when unloading, in order to avoid severe vibration and affect the accuracy of the tester.
3、试验机升降齿条及各压注式油杯内应经常加入润滑油。
3. Lubricating oil should be frequently added into the lifting rack of the testing machine and the pressure-injection oil cups.
4、试验机使用完毕应罩上机衣，防止灰尘落入机内。
4. After using the test machine, cover the machine clothes to prevent dust falling into the machine.
5、为了保护人身安全，试验机应妥善接地。
5. In order to protect personal safety, the testing machine should be properly grounded.