Hydraulic Hose Fittings universal testing machine using the operating method

1. Clamping the specimen for tensile specimens, first unscrew the pump delivery valve actuated, so that the working piston rises a short distance, and then close the delivery valve, one end of the sample clip in the upper jaw, dynamometer cleared , and then adjust the lower parher reusable hose fittings jaw, the lower end of the specimen holder, you can start the test, gripping the specimen should be carved jaws clamped sample size range. Sample should be caught in the jaws of the length, the two jaw position must be consistent and to be fully aligned with the central fixation.