Product Descriptio

Maintenance

The excavator distribution valve (also called the main control valve) is an important component for controlling the hydraulic system, responsible for distributing hydraulic oil to various actuators (such as cylinders and motors). If the distribution valve fails, the excavator will move slowly, weakly or even unable to work.

1. Common manifestations of distribution valve failure
The working device moves slowly or weakly
It may be due to wear of the valve core, serious leakage in the valve body or improper pressure adjustment.
The hydraulic system is seriously heated
It may be due to increased leakage in the distribution valve or stuck valve core, resulting in abnormal oil circulation.
Abnormal or uncoordinated movement of the excavator
The internal valve core of the distribution valve is stuck or damaged, resulting in uneven distribution of the oil circuit.
Hydraulic oil leakage
The sealing ring of the distribution valve is aged or damaged, resulting in hydraulic oil leakage.
2. Distribution valve detection steps
1. Appearance inspection
Check whether the distribution valve has external leakage and whether the sealing ring is damaged.
Check whether the valve body has cracks or obvious damage.
2. Pressure test
Connect the hydraulic pressure gauge to measure the working pressure of each oil circuit.
Compare with the standard pressure value (usually available in the excavator maintenance manual). If the pressure is abnormal, it may be a problem with the valve core wear or pressure regulation.
3. Internal leakage detection
Turn off the excavator engine and observe whether the load component sinks slowly.
If the hydraulic cylinder or actuator sinks significantly in a short period of time, it may be that the distribution valve has serious internal leakage.
4. Valve core action check
Check the flexibility of the valve core through manual or solenoid control.
If the valve core is stuck, try to disassemble, clean or replace it.

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3.lfI don't know the part number,what shouldI do?
A:Please send us size and pictures of old products.

4.What is the warranty of the products?
A:The warranty is 6/12 Months based on the specific product.

5.How long is your delivery time?
A:The normal delivery time is 3-5 days for stock sproductsafter getting payment. lf not in stock, we will inform you thetime requlred.

6.Which shipping term you can supply?

A:By sea,air or by express ( DHL,Fedex,TNT,UPSEMS)

7.What is your MOQ?
A:Small order and sample order are acceptable

8.Do you have any After-Sales service?
A:Yes!Our

About Xinfeng Machinery (XF) parts:

Xinfeng Machinery Parts Company was established in 1998. It is a professional team composed of high-quality technical personnel integrating production, maintenance, sales, and service. It is committed to providing customers with high-quality and efficient services. It is headquartered in Guangzhou, China.

We have been engaged in the excavator industry for 25 years. We sell original used parts, rebuilt parts,original new parts, and OEM new parts for many types.We can provide many types for you to choose from. We can provide a quality-trusted full range of hydraulic pumps, travel motors, final drives, main control valves, swing motors, and engines for KOMATSU, , HITACHI, JOHN DEERE, VOLVO, CASE JCB, KOBELCO, NEW HOLLAND, SUMITOMO, KATO, BOB, DOOSAN, and HYUNDAI.

We provide a customer satisfaction guarantee on all our products. We have invested in providing only the highest-quality replacement parts to our customers. Develop a more broad business space together based on long-term, friendly, mutually beneficial, and win-win business relations.