digger hydraulic pump

Disassembly and assembly of volvo excavator hydraulic pump Step 1: After cleaning the oil stain on the surface of the volvo excavator hydraulic pump, disassemble the hydraulic pump and place it on a clean workbench, and then remove the regulator fixed by the hexagon socket head bolt. Step 2: Lay a rubber pad or cotton cloth on the workbench, put the pump and regulator installation side down, and place them horizontally on the workbench to disassemble the pump and valve body. Step 3: Take out the cylinder block, plunger, valve plate, and cylinder spring from the hydraulic pump housing.

hitachi hydraulic pump maintenance instructions When the hitachi hydraulic pump of the excavator is first used, pay attention to whether the pump has abnormal noise? Because it is easily affected by air bubbles and dust at the beginning of operation, poor lubrication at high temperature or overloading of conditions, etc., make the hydraulic pump emit abnormal sound. Pay attention to the displayed value of the pressure gauge of the hydraulic circuit of the excavator at any time. Understand the function of each valve inside the hydraulic pump system of the excavator. The speed of the hydraulic pump is also related to the control pressure. The control pressure comes from the valve group, with positive control and negative control. The positive control oil pressure signal comes from the differential pressure, the higher the pressure, the greater the hydraulic pump flow, which is a proportional signal.

hitachi ex120 hydraulic pump installation precautions： Pay attention to check the display value of the counter class Observe the display value of the pressure gauge of the hydraulic circuit, the vibration status and stability of the pressure switch light signal at any time, so as to find out whether the hydraulic circuit is functioning properly as soon as possible. Pay attention to observe the action of the machine (for the modified pump) Improper design of the hydraulic circuit or poor manufacturing of components are not easy to find in the initial use stage, so special attention should be paid to the action states that appear under various operating conditions. Pay attention to the adjustment in each valve Fully understand the use of pressure control valve, flow control valve and directional control valve, pay special attention to the adjustment range and limit, otherwise adjustment errors will not only damage the machine, but also pose a threat to safety.

Features of hpv118 hydraulic pump 1、High working pressure: rated working pressure up to 275 bar 2、High volumetric efficiency: typical volumetric efficiency is 0.94 3、Wide speed range: the speed range is 600~2800 rpm (400~2800 rpm for vehicle) 4、Low speed/low pressure/high viscosity operation capability of hpv118 hydraulic pump 5、Low pressure pulsation/Low noise 6、Strong anti-pollution ability 7、Double shaft seal option

We are strict with the quality of k3sp36c hydraulic pump, We stick to provide high-quality products and good services to customers and attach great importance to the material and manufacturing technique of products to ensure the interests of our customers! In the future, we will continue to learn more professional knowledge about the k3sp36c hydraulic pump and increase our procurement and sales experience, to provide customers with better products and services!

Our Advantages of hpv145 hydraulic pump *1. Firstly, we have 10 years of operating history, we are professional in selling accessories   *2. We have our factory, can provide Wholesale competitive price.   *3. Quick reply within 24 hours, peovide fast quotation.   *4. 1pc is acceptable, regardless of use own sale or resell.   *5.Can find the right product after received your part number or picture.    If have any demand, kindly contactme, will provide our best service!

Our Advantages of hpv95 hydraulic pump: 1. Original /OEM /After Market quality and competitive price. 2. Professional work team and quick service. 3. Strong and standard package. 4. Fast and safe delivery. 5. Long export experience 6. Wholesale price for hpv95 hydraulic pump.