.jpg)
.jpg)
1. Mineral oil is used. It is recommended to use No. 10 mechanical oil in winter and No. 20 mechanical oil in summer. The oil must be kept clean and replaced regularly.
2. Before installing the oil pipe, the inner wire of the oil pipe end must be kept clean and the copper pad must be added.
3. The oil ports of the prestressed post tension hydraulic stressing jack should be kept clean. When the oil pipe is not connected, the oil nozzle should be equipped with a dust cap. During the handling process, special attention should be paid to prevent the oil nozzle from being bruised.
4. Before using the prestressed post tension hydraulic stressing jack, it must be run several times with no load to remove the accumulated air in the cylinder.
5. The loading and unloading of prestressed post tension hydraulic stressing jack must be smooth, avoid shock, and return to the original position after use.
6. It is strictly forbidden to overtravel when the jack is used, and it is not allowed to supply two-way oil to pressurize when it is not loaded. It is recommended that the safety valve of the return oil circuit of the oil pump be adjusted to 10MPa, otherwise the jack will be easily damaged.
7. In order to ensure the safety of hydraulic stressing jack components, a safety valve oil nozzle is installed on the return journey of the Qiansuo top. When the operation is improperly overpressured, the safety valve plate will be broken, and the oil discharge and leakage excitation will drop, which plays a protective role. At this time, the oil nozzle can be replaced. The bypassed safety tablet continues to be used.
8. When it is not used for a long time, it is recommended to disassemble the components to clean the sediment and other sundries, refuel and maintain, and then put them indoors to cover dust after assembly. The return cylinder should be filled with oil to prevent corrosion, so that it can be maintained for a long time. use.
3. The oil ports of the prestressed post tension hydraulic stressing jack should be kept clean. When the oil pipe is not connected, the oil nozzle should be equipped with a dust cap. During the handling process, special attention should be paid to prevent the oil nozzle from being bruised.
4. Before using the prestressed post tension hydraulic stressing jack, it must be run several times with no load to remove the accumulated air in the cylinder.
5. The loading and unloading of prestressed post tension hydraulic stressing jack must be smooth, avoid shock, and return to the original position after use.
6. It is strictly forbidden to overtravel when the jack is used, and it is not allowed to supply two-way oil to pressurize when it is not loaded. It is recommended that the safety valve of the return oil circuit of the oil pump be adjusted to 10MPa, otherwise the jack will be easily damaged.
7. In order to ensure the safety of hydraulic stressing jack components, a safety valve oil nozzle is installed on the return journey of the Qiansuo top. When the operation is improperly overpressured, the safety valve plate will be broken, and the oil discharge and leakage excitation will drop, which plays a protective role. At this time, the oil nozzle can be replaced. The bypassed safety tablet continues to be used.
8. When it is not used for a long time, it is recommended to disassemble the components to clean the sediment and other sundries, refuel and maintain, and then put them indoors to cover dust after assembly. The return cylinder should be filled with oil to prevent corrosion, so that it can be maintained for a long time. use.
The above is the introduction to the daily maintenance work of 25 ton 100 ton 300 ton 500 ton prestressed post hydraulic tension stressing jack for bridge, I hope the above content will be helpful to you, if you need to buy a new jack or want to get more jacks Knowledge, please contact us directly, email: sales1@leadcrete.com
