Hydraulic Cylinder Repair Notes
Release time:
2023-04-21
maintenance personnel purchased a complete set of seals according to the specifications marked on the drawings, disassembled the hydraulic cylinder in sequence, carefully checked whether the inner cavity, piston and piston rod of the hydraulic cylinder were worn, and the original seal was damaged, and polished accordingly. When installing the new seal, apply a little lithium grease to prevent displacement during installation. Apply a layer of hydraulic oil to the inner cavity of the cylinder body to improve the smoothness. The cylinder body mouth faces upward, lift the piston to the center of the cylinder body, and slowly put it in. During the putting process, pay attention to the close contact between the seal and the piston to prevent damage. After being in place, lift the end cover and gently penetrate the piston rod. At the same time, do lubrication measures to prevent damage to the seal and evenly press the fixing bolts of the end cover and cylinder body. Then use the hydraulic pump to test the pressure, inject hydraulic oil from the pressurizing hole, and when the pressure is increased to the approved pressure, no hydraulic oil flows out when the pressure relief hole is disassembled, which proves that the hydraulic cylinder is qualified for installation.
This time, the employees repair the hydraulic cylinder by themselves, which not only provides an opportunity for the employees to practice and further improve the operation skills, but also saves the production cost of more than 10000 yuan for the enterprise, which can be described as killing two birds with one stone. (Lou Xuxin)
More information
The company won the Taurus Award
On December 29, 2022, the "2022 High-quality Development Forum of listed companies and the 24th Golden Bull Award presentation ceremony of listed companies" jointly sponsored by China Securities News, Haikou Municipal Government and Haikou National High-tech Zone was held in Haikou. The list of Golden Bull Awards of listed companies was officially announced. With its outstanding performance, Jianfeng Group won the "2021 Golden Bull Most Investment Value Award".
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From December 11th to 12th, the 13th National Congress of the All-China Federation of Industry and Commerce was held in Beijing. Jiang Xiaomeng, chairman of the group company, attended the conference as a representative of Zhejiang.
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Yunnan Jianfeng won the title of "Harmonious Labor Relations Enterprise" in Yunnan Province
On November 18, the Yunnan Provincial Federation of Trade Unions, the Department of Human Resources and Social Security, the Entrepreneur Association and other units jointly issued a document to commend the harmonious labor relations enterprises in Yunnan Province from 2020 to 2021. Yunnan Jianfeng Cement Company is on the list and is the only enterprise in the urban area of Pu'er to receive this honor.
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Huang Ping Jianfeng won the title of "provincial green factory" in Guizhou
On November 30, the Guizhou Provincial Department of Industry and Information Technology released the 2022 list of green manufacturing units in Guizhou Province, and Huangping Jianfeng Cement Company was recognized as a "provincial green factory".
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On December 2, Yu Jianhong, general manager of the group company, gave a management lesson to the company's reserve management talents under the title of "Enterprise Management Innovation in Great Changes.
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On November 24, Jiang Xiaomeng, secretary of the party committee and chairman of the group company, gave a special party lesson to all party members and cadres of the company under the title of "comprehensively promoting the Great Rejuvenation of the Chinese Nation with Chinese Modernization" to interpret and preach the spirit of the 20th CPC National Congress.
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