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Maintenance and care of Hainan hydraulic lifting freight elevator

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Maintenance and care of Hainan hydraulic lifting freight elevator

作者: Release Date: 2019-04-25 Author: Click:

Hainan hydraulic lifting freight elevator maintenance and care, Hainan ventilation equipment official website Xiaobian to introduce you.

⒈ Monthly maintenance

During the maintenance of the lifting platform, people must work inside the lifting platform. The elevator must be lifted to prevent the sudden drop of the lifting platform, which may cause injury or death.

A. Check the lubrication and wear of rollers, intermediate shafts and bearings; cylinder pins and bearings; boom hinges and bearings;

B. Fill the above parts with lubricating oil. Extend bearing life.

C. Check hydraulic oil quality and oil level. When the lifting platform is raised to the highest level, the hydraulic oil level should be 40-50 mm above the bottom of the fuel tank. When the oil color of the hydraulic oil becomes dark, the oil is sticky, or there is foreign matter such as grit in the oil, the hydraulic oil should be replaced in time. The hydraulic system of the lifting platform uses 32 # hydraulic oil.

⒉year-end maintenance

A. Check hydraulic and piping connections. If the pipeline is damaged, it should be replaced immediately; when the connection part is loose, tighten the pipe joint.

B. Remove and disassemble the lower valve, blow the valve core with compressed air, and reinstall it.

C. Fully drain all the hydraulic oil in the fuel tank, open the fuel tank, remove the suction filter, wash it and put it back into the fuel tank, and install it in place. The fuel tank is refilled with new oil.

Lift cannot lift or weak lifting force

⒈Relief valve pressure adjustment does not meet the requirements to adjust the pressure to the required value

检查 Cylinder internal leak check or replace the cylinder assembly

⒊ Reversing valve is clamped or leaked Check or replace valve assembly

⒋The oil level is too low, the oil inlet filter is clogged, add enough oil, and clean the oil filter

⒌Check the fuel supply pump or replace the pump

Ripper cannot lift or weak

⒈Relief valve pressure adjustment does not meet the requirements to adjust the pressure to the required value

泄 Refer to the method of 2.3.4.5 above for leakage in the oil cylinder

⒊ Reversing valve is stuck or leaking

⒋The oil level is too low and the oil inlet filter is blocked

毛 Defective fuel pump

⒍Check valve leak Check the wear of check valve core and valve seat, check the check valve spring for fatigue, deformation, etc.

Heavy lever

⒈The operating lever mechanism has fault inspection, adjustment and replacement of unqualified parts; cleaning of valve parts; check of hydraulic oil cleanliness

⒉Control valve spool is clamped (manufacturing, installation problems, dirt problems)

Defective torque converter and compensation system, such as ineffective torque converter, power shift failure, excessive oil temperature, etc.

⒈Weak torque converter

不足 Insufficient amount of hydraulic oil

⑵Improper voltage regulation

⑶ Insufficient back pressure Check the torque converter oil quality (whether the hydraulic transmission oil is misused), the amount, and check the torque converter pressure regulator, back pressure valve and its adjusted pressure value

⒉Power shift failure

⑴.Quick check valve, pressure reducing valve, power transmission valve, and reversing valve are stuck and leaking

⑵. Oil pollution is serious. Check the cause of valve jam and remove it accordingly. Filter or replace hydraulic oil.

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Keywords: Hainan hydraulic freight elevator care , Hainan hydraulic freight elevator maintenance , Hainan hydraulic freight elevator installation

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    Company Name: Hainan Wanhao Building Decoration Engineering Co., Ltd.

    Contact: Manager Zhu

    Phone: 13876240168

    Website: trsdwl.com

    Address: No. 108, Building 22, Lin'an International Trade City, Yehai Avenue, Haikou


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