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

18/May2021

Hitachi Excavator Main Hydraulic Circuit

1. Neutral loop When the control lever is in the neutral position, the oil pressure of the main pump is blocked by the main sliding plunger in the control valve, and the oil pressure in the circuit...

18/May2021

Analysis Of Other Control Systems Of Hitachi Excavators

1. Rotary parking brake system When the front boom, forearm and other accessories are lifted off the ground and parked on a slope, if oil leaks in the rotating circuit, the upper structure may move...

18/May2021

Hitachi Excavator Main Circuit

1. Hitachi excavator main hydraulic circuit The main hydraulic circuit is composed of a suction circuit, an output circuit, an oil return circuit and an oil drain circuit. The hydraulic system has ...

18/May2021

Understand The Excavator Walking System

The traveling system is composed of traveling hydraulic motor, two-speed hydraulic motor regulating valve, parking brake, brake valve, traveling reducer (final transmission) and so on. 1. Walking h...

18/May2021

Disassembly And Installation Of Control Valve Assembly Of Kobelco SK200-8 Exc...

1. Disassembly of the control valve assembly Run the engine at low idle speed, operate the cylinder to the end of its stroke without overflowing the oil circuit, lower the working device to the gro...

13/May2021

Hitachi ZX200-3G Excavator Is Weak In Work.

The most common situation is that the Hitachi excavator is weak in digging but the engine does not hold back the car. The size of the digging force is determined by the output pressure of the main ...

13/May2021

Kobelco SK130-8 Excavator Swing Mechanism: Swing Hydraulic Motor, Swing Brake...

1. Swing hydraulic motor Kobelco excavator rotary hydraulic motor is a bent axis axial piston quantitative motor, which consists of a drive shaft, an end cover, a housing, a plunger, a cylinder blo...

13/May2021

Detailed Analysis Of Solenoid Valves For Hitachi Excavators

Hitachi excavators have a torsion control valve (TVC valve), a stick flow solenoid valve, and a solenoid valve group consisting of a secondary overflow?CO cancellation solenoid valve, a rotary brak...

13/May2021

Special Functions Of Kobelco Excavator Machine Monitor

1. The upper part of the machine monitor (display part) The upper part of the machine monitor is a multi-function display area. When starting the Kobelco excavator engine, the battery voltage will ...

13/May2021

Talking About Hitachi Excavator Hydraulic Pump Control System

The control system and function of Hitachi excavator hydraulic pump controller. According to the stroke of the joystick, the displacement of the hydraulic pump is controlled to reduce the neutral l...

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Knowledge

Hitachi Excavator Main Hydraulic Circuit

Analysis Of Other Control Systems Of Hitachi Excavators

Hitachi Excavator Main Circuit

Understand The Excavator Walking System

Disassembly And Installation Of Control Valve Assembly Of Kobelco SK200-8 Exc...

Hitachi ZX200-3G Excavator Is Weak In Work.

Kobelco SK130-8 Excavator Swing Mechanism: Swing Hydraulic Motor, Swing Brake...

Detailed Analysis Of Solenoid Valves For Hitachi Excavators

Special Functions Of Kobelco Excavator Machine Monitor

Talking About Hitachi Excavator Hydraulic Pump Control System