How to maintain and maintain hydraulic universal testing machine

The test machine is a high-precision detection instrument, and daily maintenance is of great significance to ensuring the normal operation of the equipment and measurement accuracy.

Host maintenance:
1. The fixtures equipped with the machine should be coated with anti-rust oil for storage;
2. Check the screws in the jaw area regularly. If they are found to be loose, tighten them in time;
3. Check the transmission status of the sprocket regularly. If it is found to be loose, please re-tension the tensioner;
4. The sliding surfaces in which the steel plate inset and the lining plate and the dovetail groove surface on the lining plate should be kept clean, and a thin layer of MoS2 (molybdenum disulfide) grease should be applied regularly;
5. Since the jaws of the tensile tester are often used, they are prone to wear and tear. When there is too much oxide scale, it is easy to cause damage to the small piston and oil leakage. Therefore, the jaws should be cleaned frequently and kept clean (clean after each test);

Maintenance of oil source:

1. Regularly replace the oil suction filter and filter element according to the use of the machine and the service life of the oil, and replace the hydraulic oil.
2. Regularly check whether there is any oil leakage at the main engine and oil source. If there is oil leakage, replace the sealing ring or combination gasket in time;
3. When not doing tests for a long time, be careful to turn off the mains power supply. If the machine is in standby state, the switch should be turned to the "load" setting, because if the switch is turned to the "quick reversal" setting, the electromagnetic reversing valve is always in power-on state, which will affect the device's

Service life.

Control system maintenance:
1. The interfaces on the controller are one-to-one, and plugging in the wrong interface may cause damage to the device;
2. The interface on the plug-in and unplug the controller must be powered off.
3. If you do not use the machine for a long time after the test, turn off the controller and computer;
4. Regularly check whether the connection wire on the rear panel of the controller is in good contact. If it is loose, it should be tightened in time;