Foshan Yongheng Hydraulic Machinery Co.,Ltd

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400-9922-303

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Technical Support Current Location： Home - Service - Technical Support

Safe Operation And Maintenance Common Fault And Elimination Method

Fault phenomena	Fault cause	Solution
Serious noise	Oil sucking filter blockage	Cleaning filter
	Low viscosity of oil	Replacement of hydraulic oil with suitable viscosity
	Low oil surface in oil tank	Add oil to the upper limit of the oil mark
	Oil suction pipe joint leakage	Tighten the joint or replace the O ring of the oil sucking flange
	Coupling loosening	Repair or replace a coupling
	Wear or damage of oil pump	Repair or replace an oil pump
	Piping vibration	Screw the screw to tighten the connecting line
Down vibration and loud noise of the main cylinder	The pressure of the balance valve is too large	Reduce the pressure of the support valve to the medium plate without falling
Lack of pressure or pressure	Overheating of oil pump	Reduce oil temperature or repair oil pump
	Wear or damage of oil pump	Repair or replace an oil pump
	Low viscosity of oil	Use the recommended hydraulic oil
	Damage or failure of pressure regulating valve	Cleaning, repair or replacement of pressure regulating valve
	Damage of piston seal	Replacement of piston seals
Main cylinder slide	Upside pressure relief valve has dirty card	Cleaning, repairing or replacing the overflow valve
Main cylinder slide	Damage of fast cylinder seal	Replacement of fast cylinder seal
The downlink of the main cylinder can not go down after slow down	Failure or damage of the filling valve	Repair or replace a fluid filling valve
There is no fast or no slow down speed in the main cylinder	Quick turn slow solenoid valve malfunction	Cleaning, repairing, or replacing a solenoid valve
The main cylinder is slow or can't go up	The high upward pressure is the failure of the filling valve	Repair or replace a fluid filling valve
The main cylinder is slow or can't go up	Low uplink pressure is insufficient for uplink pressure or damage of fast cylinder seal	High pressure or replacement of fast cylinder seal

CONTACT WAY

Contact Person： Mr Luo 13928684868
Tel： 400-9922-303 / Fax： 0757-85408932
E-mail： fsyongheng@163.com
Address： Shashui Road,Danzao town,Nanhai,Foshan City,GuangDong

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