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

09/Sep2021

Common Faults And Troubleshooting Of Pressure Relay Of Kobelco Excavator

The function is to use the joint action of hydraulic pressure and spring force to control the separation or contact of electrical contacts in the hydraulic system control, so as to convert the hydr...

09/Sep2021

Instructions For Installation, Use And Maintenance Of Plunger Pump Of Kobelco...

The plunger pump has the characteristics of high pressure, high speed and high volumetric efficiency because the processing of plunger and plunger hole is easy to ensure the matching accuracy and g...

09/Sep2021

Causes And Troubleshooting Of No Pressure, Noise And Leakage in Relief Valve ...

1. There is no pressure in the system ① The oil is too dirty or the damping hole of the slide valve is not cleaned during assembly, so that the damping hole is blocked and the slide valve cannot mo...

09/Sep2021

Troubleshooting Of Hydraulic Oil And Hydraulic Components Of Hitachi Excavator

1. Hydraulic oil contamination Hazards of hydraulic oil pollution: ① Solid particles in hydraulic oil, such as molding sand, chips, abrasives, welding slag, rust flakes, paint skins, fibers, etc., ...

09/Sep2021

Three Precautions For Excavator Hydraulic Cylinder Assembly

(1) Check whether there is burr or acute angle on the processed parts In the sealing technology, it is very important to protect the lip known as the life of the sealing ring. If there are exhaust ...

09/Sep2021

How To Repair The Loader Differential Shift Mechanism

In the actual use of loader differential, the maintenance machine often does not work, so as to lose ## maintenance time and shorten the service life of transmission. Cause of clutch failure: the h...

09/Sep2021

Explanation Of Working Principle Of Common Parts Of Loader

Diesel engines are widely used as the power unit of loaders. Only a few small and light loaders are powered by gasoline engines. This is because the diesel engine has high thermal efficiency, low f...

29/Aug2021

Kobelco Excavator Ram Cylinder, The Piston And Cylinder Fault Exclusion

First, plunger tank Insufficient thrust 1 Hydraulic system is insufficient. Check the relief valve to improve system pressure. 2 After the plunger and guide sleeve are wear, the gap is increased, a...

29/Aug2021

Hyundai R220LC-5 Excavator Oil Cylinder Oil Leakage Failure Case Analysis

Fault case Model: R220LC-5 Fault Phenomenon: Arm oil tank has a pull mark, oil leakage user requirements: product quality problems, replacement of small arm oil cylinder test steps: 1. The agent fi...

29/Aug2021

Hyundai R200LC Excavator Main Pump Has More Hydraulic Oil Seepage Troubleshoo...

Fault case Model: R2OOLC Fault Phenomenon: There are more hydraulic oils at the main pump. User opinion: It is considered that the main pump has serious quality problems, requiring replacement of t...

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Common Faults And Troubleshooting Of Pressure Relay Of Kobelco Excavator

Instructions For Installation, Use And Maintenance Of Plunger Pump Of Kobelco...

Causes And Troubleshooting Of No Pressure, Noise And Leakage in Relief Valve ...

Troubleshooting Of Hydraulic Oil And Hydraulic Components Of Hitachi Excavator

Three Precautions For Excavator Hydraulic Cylinder Assembly

How To Repair The Loader Differential Shift Mechanism

Explanation Of Working Principle Of Common Parts Of Loader

Kobelco Excavator Ram Cylinder, The Piston And Cylinder Fault Exclusion

Hyundai R220LC-5 Excavator Oil Cylinder Oil Leakage Failure Case Analysis

Hyundai R200LC Excavator Main Pump Has More Hydraulic Oil Seepage Troubleshoo...