5KN hydraulic universal testing machine maintenance

The power supply voltage of the hydraulic universal testing machine is three-phase 380V, and the electricity between the main body and the hydraulic control box is connected by a plug. Before power on, open the iron door of the hydraulic control box, check whether the wiring is disconnected, whether the fuse is loose, and clean the dust and debris in the electrical box. After confirming that the equipment has been connected to the power supply line, press the "power" button on the panel of the hydraulic control box, and the indicator light will be on to indicate that the power supply has been turned on. Turn on the oil pump, check whether the running direction of the oil pump is consistent with the direction indicated by the head, if it is opposite, change the position of any two connected, then press the lifting button of the jaw seat, take out the wooden block on the board, unscrew the oil delivery valve to raise the piston , refer to the scale on the main column to check whether the piston stroke limit switch works.

The operation process of hydraulic universal testing machine:

 

1. Turn on the power, turn on the power switch, turn on the computer and the power amplifier.

2. According to the prepared sample, install the appropriate jaws. (The shape of the sample is different, and the shape of the fixture is also different)

3. Start the oil return valve and the oil source works, which is to loosen the oil return valve.

4. Clamp the sample in the jaws, move the beam, and clamp the sample in the upper and lower jaws.

5. Turn on the motor to start the tensile test, and stop after the sample breaks.

6. Remove the sample and analyze the fracture surface (this depends on personal preference and test requirements)

7. After the test is over, organize the data and print the data.

 

The main power of the hydraulic testing machine is the hydraulic press. It is always necessary to use and maintain it correctly in all testing machines or factories, and maintenance is an important solution to prevent equipment problems.

 

Maintenance steps: first replace the hydraulic oil, then open all the air pipes, and the air pressure of the blower. Insert the air pipe into the blower, clean the inner cavity of the hydraulic testing machine, and clean up the waste oil and dirt inside.

How to maintain the hydraulic universal testing machine

 

1. The parts of the hydraulic universal testing machine should be cleaned frequently, and a small amount of oil should be applied to prevent the surface from rusting after painting. The rainy season should be used to find and oil, not in the case of dust intrusion. All door covers should not be opened frequently. In order to avoid the influence of dust entering the interior of precision parts, non-operators should be allowed to use it to avoid accidents.

2. When the test is suspended, the oil pump motor should be turned off so that it should not run idling, so as not to waste electricity and rotating parts in the pump, fill the nozzle through the bottom, and the driving screw of the moving beam is in contact with the base. You should pay attention to your tears, To prevent wear, the screw surface should always be coated with new grease.

3. No lubricating oil is allowed for the rolling bearings of the inner shaft of the main shaft of the dynamometer and the rolling bearings in the pointer structure to avoid the sensitivity of the mechanism to oil pollution. When maintaining, clean and dry kerosene, and inject a small amount of high-quality lubricating oil (such as # 1 Spindle oil) for rust prevention, the oil tank should be checked frequently, if the oil level of the oil tank is lower than the high oil window, it should be replenished to the sinking oil level.

4. The daily maintenance of the hydraulic hydraulic universal testing machine should pay attention to the following issues: timely clean up the samples of concrete and other parts, such as iron filings, etc.; use anti-rust oil, screws, load nuts, bearings and other positions for exposed anti-rust treatment regularly lubricating.

5. Try not to use the Internet for computer software, and do anti-virus when inserting a USB flash drive; the hydraulic oil equipment is clean, and the hydraulic oil is replaced once a year.

 

The products independently developed and produced by Standard International Group (HK) Limited involve series, 35 categories, including: electronic universal testing machine series, hydraulic universal testing machine series, tensile testing machine series, compression testing machine series, torsion testing machine series, spring tension testing machine series, Compression testing machine series, spring torsion testing machine series, spring fatigue testing machine series and railway test bench series, etc.