JCB 3CX 4CX 20 / 902900 Hydraulic Gear Pump Excavator Replacement Parts

 
 
JCB 3CX 4CX 20 / 902900 Hydraulic Gear Pump Excavator Replacement Parts
 
 
Specifiion

 
 
Description
 
The hydraulic system of excavator is composed of some basic circuits and auxiliary circuits, including working circuit, pressure limiting circuit, unloading circuit, buffer circuit, throttle speed regulation and throttle speed limiting circuit, walking speed limiting circuit and pilot valve control circuit Wait. Its components are mainly composed of working pump, charge pump, pilot control valve, distribution valve, safety valve, boom cylinder, forearm cylinder, bucket cylinder, fuel tank and related pipelines.
 
 
Characteristic
 

1. It has high transmission efficiency to give full play to the power and fuel economy of the engine.

2. The hydraulic system and hydraulic components have sufficient reliability under the action of large load changes and sharp vibration and impact.

3. Coordinate the light and vibration-resistant cooler to reduce the total heat generation of the system, so that the hydraulic oil temperature does not exceed 80 degrees or the temperature rise does not exceed 45 degrees when the main engine continues to work.

4. Because the excavator is dusty and the hydraulic oil is easily polluted, the sealing performance of the hydraulic system is better, and the hydraulic components are less sensitive to oil pollution. The entire hydraulic system should be equipped with an oil filter and a dust-proof device.

5. Adopt hydraulic or electro-hydraulic servo control device, so that the excavator can set up an automatic control system, thereby improving the technical performance of the excavator and reducing the labor intensity of the driver.

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