L48A1 Mast Section maintenance of hydraulic lifting system of tower crane

22-11-2019

tower crane hydraulic lifting system maintenance knowledge 1 strictly in accordance with the provisions of the Lubricating Oil table refueling or replacement of oil, the first refueling should be filled with fuel tank, after starting the engine out of the Cylinder Piston Rod, and then retract the Piston Rod, at this time to fill the fuel tank up to the upper limit of the tank oil standard. The hydraulic system is a high-pressure hydraulic system, the oil cleanliness requirements are strict, should be the hydraulic oil filter before refueling, can be added to the start-up work tank. Daily inspection, according to the need to add part of the clean hydraulic oil, the work every six months completely oil change. And regular cleaning tank, cleaning oil filter. 2 The pressure of the relief valve should not be changed after adjustment. 



L48A1 Mast Section

L48A1 mast section is the best in this fieldL48A1 Mast Section

Before each climb, check the pressure with the oil pressure gauge. Should always check whether the joint of each department is tight, not allowed to have leakage phenomenon. 4 Oil filter should always check whether there is no blockage, check the safety valve in use after the adjustment value is changed. Every time before use should check the oil pipe and joints, oil pump, oil cylinder and control valve work without leakage, if there should be timely maintenance. 6 when the oil pump is first started after final assembly or overhaul, it should be checked whether the inlet and outlet are connected to the other side, whether the rotation direction is correct, whether the oil absorption pipeline is leaking, and then try to turn by hand, and finally start and try to run in the specified speed. In the winter start-up, should be no-load oil pump, to the oil temperature rise and control valve action flexible after the formal use. When the system is not working, the machine should be shut off in time to avoid the oil temperature rising, which affects the system use.

L48A1 Mast Section

L48A1 mast section is the best in this field

L48A1 Mast Section

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