wire braided hydraulic hose the microcomputer screen display hydraulic universal reusable hose fitting

the microcomputer screen display hydraulic universal testing machine operation method
First, turn on the computer, enter the control software, and then open the hydraulic universal testing parher wire braided hydraulic hose machine host power, press the control panel on the "pump" button to start the pump motor, a small amount of air in the line memory, the fluid flowing in the pipeline will produce noise elimination method is to open the delivery valve, so that the piston up some distance, and then close the delivery valve open return valve, the piston down again, so the cycle time can drain the air only after a formal trial.
Delivery valve in the raised test sets can be opened a little bigger, so test sets the fastest rise, reducing overhead time trial. When the clamping load should pay attention to a good sample manipulation, according to the sample size must be adjusted loading speed should not rise too fast, so that the sample is under attack, should not be shut down for no reason, so that the sample suffered a sudden drop in load , thus affecting parher wire braided hose the accuracy of the test data. Unless it is made of special specifications yield point or other special test cases need to repeatedly increase and decrease the load, should also smooth operation.
Return valve in the sample loading time, it must be closed, not allowed to have the oil return phenomenon. In the specimen fracture, delivery valve should be closed, and then slowly open the oil valve, removable load testing machine and make the piston back down to its original position, so that the oil back to the tank. Note: The delivery valve handwheel Do not overtighten to avoid damage to the tip of the needle oil, oil return valve hand wheel must be tightened, because of the oil has a larger needle tip obtuse, so parher wire rope ferrule you will not damage