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

31/Jul2020

The Basic Structure Of Hitachi Excavator Hydraulic System

At present, the 20-ton Hitachi excavator uses a dual-circuit constant power control hydraulic system with four operation control modes, which can realize electrical control and hydraulic control. D...

31/Jul2020

Analyze The Basic Structure Of Hitachi SK200-6E Excavator Mechanical System

1 Power plant The power unit of single bucket hydraulic excavator mostly adopts vertical multi-cylinder, water-cooled, one-hour power calibration diesel engine. 2 Transmission system The transmissi...

31/Jul2020

Inspection Of Oil Discharge Of Slewing Hydraulic Motor Of Hitachi ZX200-5 Exc...

Detection of oil discharge of rotary hydraulic motor To check the performance of the swing motor, the amount of oil discharged from the swing motor is measured when the upper swing platform is rota...

31/Jul2020

Why Does The Excavator Stop The Motor And Stop The Engine?

1. The excavator engine shutdown motor has three functions (1) When the key switch is turned ON, the engine stop motor will move the fuel cut-off lever to the open (start) position. (2) When the ke...

31/Jul2020

Analyze The Breakdown Of Hitachi EX400 Hydraulic Excavator

1. Main pump hydraulic control circuit Two sets of multi-way reversing valves supplied by two main pumps are provided with a fixed throttle valve F and G at the outlet oil circuit ends, which are u...

31/Jul2020

Check The Parts That Cause Hydraulic Drift Of Hitachi Excavator Working Devices

If Hitachi excavator working device (cylinder) has hydraulic drift, check according to the following procedures and determine whether the cause is on the cylinder sealing side or the control valve ...

31/Jul2020

Milling Drum-the Core And Soul Of The Milling Machine

Milling drum for small milling machine The small milling machine has greater mobility and flexibility, and can be used for small area milling and precise milling of narrow areas. Small milling mach...

31/Jul2020

4 Ways To Solve The Problem Of Excessive Fuel Consumption Of Construction Mac...

In the engineering and construction industry, construction machinery is of course indispensable construction equipment. Nowadays, large and small construction machinery equipment is a must in every...

31/Jul2020

Key Knowledge Of Bridge Strengthening

As the economy develops, the traffic volume increases and the load level changes. The guiding ideology of the early design focused on the saving of materials and low safety. Generally speaking, the...

29/Jul2020

How To Adjust The Valve Clearance Of Kobelco Excavator?

When the excavator repairs the valve adjustment, the machine should be parked on a level ground and the working device should be lowered to the ground. Under the condition that the engine coolant t...

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Knowledge

The Basic Structure Of Hitachi Excavator Hydraulic System

Analyze The Basic Structure Of Hitachi SK200-6E Excavator Mechanical System

Inspection Of Oil Discharge Of Slewing Hydraulic Motor Of Hitachi ZX200-5 Exc...

Why Does The Excavator Stop The Motor And Stop The Engine?

Analyze The Breakdown Of Hitachi EX400 Hydraulic Excavator

Check The Parts That Cause Hydraulic Drift Of Hitachi Excavator Working Devices

Milling Drum-the Core And Soul Of The Milling Machine

4 Ways To Solve The Problem Of Excessive Fuel Consumption Of Construction Mac...

Key Knowledge Of Bridge Strengthening

How To Adjust The Valve Clearance Of Kobelco Excavator?