The hydraulic universal testing machine is a high-precision testing instrument, and daily maintenance is of great significance to ensure 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. Because the jaws of the hydraulic universal testing machine are often used, it is easy to wear, and too much oxide scale can easily cause small piston damage and oil leakage, so the jaws should be cleaned frequently and kept clean (it is best to clean after each test );
3. The sliding surface of the inlaid steel plate and the lining plate and the dovetail groove surface of the lining plate should be kept clean, and a thin layer of MoS2 (molybdenum disulfide) grease should be applied as scheduled
4. Check the screws on the jaws regularly, and if any looseness is found, tighten them in time;
5. Check the transmission of the sprocket regularly, if any looseness is found, please re-tension the tensioner;
Maintenance of oil source:
1. Regularly check the main engine and the oil source for oil leakage. If oil leakage is found, the sealing ring or combination pad should be replaced in time;
2. According to the use of the machine and the life of the oil, replace the oil suction filter and filter element on schedule, and replace the hydraulic oil.
3. When the test is not performed for a long time, pay attention to turn off the power of the host. If the machine is in the standby state, the transfer switch should be in the "loading" gear. If the transfer switch is in the "fast rewind" gear, the electromagnetic directional valve has been energized, and the detection equipment will affect the service life of the device.
Control system maintenance:
1. Regularly check whether the connection line of the rear panel of the controller is in good contact, and if the high and low temperature testing machine is loose, it should be fastened in time;
2. If the machine is not used for a long period of time after the test, close the controller and computer;
3. The interfaces on the controller correspond to each other one by one. Inserting the wrong interface may cause damage to the device;
4. The interface on the pluggable controller must be closed to the controller power supply.
The above are some knowledge about the maintenance of the universal testing machine, please read the specific test machine users to ensure that the service life of the testing machine is extended.
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