Annual Maintenance Of Elevators

A. Check the hydraulic and pipeline connections. If the pipeline is damaged, it should be replaced immediately; When there is looseness in the connection part, tighten the pipe joint.
B. Remove and disassemble the lowering valve, blow the valve core clean with compressed air, and then reinstall it.
C. Drain all the hydraulic oil in the oil tank, open the oil tank, take out the oil suction filter, clean it, and return it to the oil tank. Install it in its original position. Fill the fuel tank with new oil.
The elevator cannot lift or the lifting force is weak