Construction machinery repairing and maintenance knowledge for brand equipments Factory China - New - Liteng Machinery

05/Aug2021

Liugong Excavator Master Pump, Pilot Pressure Troubleshooting Method

The main pump and the pilot pressure sensor are current sensors, the failure rate is low, and the pressure is only for reference. If the pressure is 0 or a constant value in use, it is generally du...

05/Aug2021

Hyundai Excavator Main Pump Includes Rotating Assemblies, Rotating Slope Asse...

The main pump generally includes a rotating assembly, a rotating swash plate assembly, and a valve block assembly. The rotating assembly is used to rotate and assume the main function of the entire...

05/Aug2021

About The Excavator With Tier3 Engine And Tierl, Tier2

Since Tier3 engine reliability is generally relatively high, pay attention to the following relative to other models. 1, the standard and spare system of the electronic throttle Different 1.1 Stand...

05/Aug2021

Several Exclusion Methods Of Liugong Excavator Actuator Failure

Confirm that the main controller and the Liugong excavator actuator controller have no fault, and the 888 # wire has a voltage input, and the actuator still does not move, and the confirmation can ...

05/Aug2021

Hyundai Excavator Rising, Down Operation

1 large arm lifting operation. The large arm lifting operation is faster because the oil originally flowed into the oil port P2 is combined, and the housing of the pump P1 is flowed through the oil...

05/Aug2021

Hyundai Excavator Negative Control Structure

(1) Operation Overview The negative control signal pressure of the central bypass oil is operated in the following cases and controls the discharge of the pump. 1 There is no empty stop state. 2 Th...

05/Aug2021

Operation Control When Hyundai Excavator Air Blocking Position

The hydraulic oil of the pump P1 flows into the housing A through the oilway inlet (P1), the central bypass oil passage 2, and the Unicom Oilway 3. The hydraulic oil of the pump P2 flows into the h...

05/Aug2021

Hyundai Excavator Control Valve Consists Of A Main Safety Valve, An Oil Port ...

The control valve has two relief valves to limit the pressure in the oil road. (1) Main safety valve The main safety valve is used to limit the pressure of the main hydraulic system. The hydraulic ...

05/Aug2021

Analyze Hyundai Excavator Bucket Recovery, Extended Operation Structure

1 bucket recovery operation. When the bucket is recovered, the pressure of the pilot control valve is supplied to the oil port XBK, and the bucket and the corset 5 moves to the left and other two s...

05/Aug2021

Method For Adjusting Loader Clutch

Adjust the free trip of the clutch pedal. The gap between the rod and the separation bearing is 2 mm, referred to as the separation gap, and the corresponding pedal free travel 30mm. If it does not...

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Knowledge

Liugong Excavator Master Pump, Pilot Pressure Troubleshooting Method

Hyundai Excavator Main Pump Includes Rotating Assemblies, Rotating Slope Asse...

About The Excavator With Tier3 Engine And Tierl, Tier2

Several Exclusion Methods Of Liugong Excavator Actuator Failure

Hyundai Excavator Rising, Down Operation

Hyundai Excavator Negative Control Structure

Operation Control When Hyundai Excavator Air Blocking Position

Hyundai Excavator Control Valve Consists Of A Main Safety Valve, An Oil Port ...

Analyze Hyundai Excavator Bucket Recovery, Extended Operation Structure

Method For Adjusting Loader Clutch