OEM Material Intake and Exhaust Valve Seat Ring For DOOSAN DE12 65.03203-1043 65.03203-1044

Common fault check:

In order to accurately identify the common fault points, the technical engineer once again determined that the excavator did not deviate in the walking direction when walking on the leveling ground, and the left side deviates when encountering frictional resistance or going uphill.
1. The working pressure of the left and right pumps at the front and rear of the main valve is 330bar, and everything is normal during work, and the common faults of the main valve itself are cleared.
2. Check that the working pressure of the overflow flow of the right walking motor is 330 bar and everything is working normally. Check that the working pressure of the overflow flow of the left walking motor is 280 bar, which is 50 bar away from all normal working pressures.
Afterwards, people exchanged the oil pipeline with the main control valve for moving up and down, but the left travel motor was still weak, and the common faults of the main control valve for left moving were eliminated.
3. People move up and down to exchange parts of the oil pipeline during work, and when they move, the left travel motor is still weak, so the common faults of the left travel main valve are eliminated.
4. Open the return oil pipeline of the central government rotary joint, observe the oil situation of the upper and lower independent moving pumps, there is no difference, and clear the common faults of the central government rotary joint.
5. When inspecting the left travel speed regulating valve, it is found that the internal valve core is stuck and has not returned to its original position. Carefully and carefully, it is found that the left travel motor speed regulating valve enters the residue, and the valve core is stuck to cause internal leakage.

Solution:

Disassemble the speed regulating valve, clean it and grind it, make sure it is accurate and then assemble it. After debugging, everything works normally, and there is no deviation in the running direction when it encounters friction resistance when going uphill.

COMPANY PROFILE:

Guangzhou TP Cloud Power International Construction Machinery Co., Ltd,in【Starting with the apex technology of power machinery,challenge infinte possibility,providing superior technology and high value products to the world,committed to creating a cleaner and more comfortable earth society】,through research&development, production, sales of excavator engine parts, achieved sustainable development.

Our main products include various powder metallurgy parts such as piston rings, cylinder liners and powertrains for excavator engines,we through using lead step technology development for the overwhelming majority of customers with low cost has the original value of the products,in order to realize the engine such as lightweight,low fuel fee【environmentally friendly engine manufacturing】has made a contribution.We pursuit the highest quality,by the world's first-class speed,manufacturing world-class products efficiently.

OUR ADVANTAGES:

·Original Factory Guarantee

·Higher Efficiency

·Lower Fuel Consumption

·Longer Life

·Genuine Parts

·OEM Replaceable Parts

·4000Hrs Warranty

·Compact Design

·Providing Optimum Dynamicity Of High Stability

·High-Precision Motivation Adjustment

·Easy Replacement In Customer System

·The Highest Level Of Durability In Extreme Conditions

·Reduce Wear And Prolong Life

·Longer Service Life

·Better - Resistant And Heat - Resistant

·High - Precision And High Stability

·OEM

·Professional Technical Team

·A Full Range Of One - Stop Resources

·The Most Trustworthy Quality

FACTORY STRENGTH:

EXHIBITION

PACKAGE&SHIPMENT

FAQ:

1. Are you manufacturer or trading company?

We are the OEM manufacturer, head Office is in HongKong China.

2. What products do you make?

We are engaged in manufacturing engine cylinder liner, piston, piston ring, cylinder liner kits, cylinder head gasket, engine gasket kits and Other core engine parts.

3. What scenario can your product be applied?

Our products are widely used in power fields such as construction machinery, generator set, commercial vehicle, passenger car. agricultural machinery, ship, etc.

4. Which countries and regions are your market extend all over?

Our markets includes North America, Western Europe and the Middle East, Southeast Asia, Africa South America and all over the world,for example:USA,Germany and Australia,UAE and Brazil and so on..

5. What is the standard of package?

We have Japanese TP Brand package, also have wooden case/carton/standard shipping package,Or custom-made packaging.

6. What is the delivery time?

Generally, we will arrange the goods within 24 hours after your payment; If some items are no stock, it will take 30-45 days to produce after received deposit.

7. What kind of payment terms do you have?

L/C, D/A, D/P, T/T, X-Transfer is also acceptable.

8.How can I get a quotation?

A complete quotation based on the details as follows in your inquiry:

a.Excavator brand name;

b.Excavator model number;

c. Engine model;

d.Part number;

e. Pictures;

f.Quantity;

g.Other requirements, such as Packing, Shipping and so on.

9.How do you pack the goods?

The products will be carefully handled by three steps:

a: Wrapped with packing paper or plastic bag;

b: Japanese TP brand box or customized box;

c: Put in an appropriate carton box or wooden boxes and be fixed firmly.

10.How can I know the status of my order?

We will keep you udpate the process of the preparation, to ensure all issues are resolved prior to the delivery.products pictures can be provided if required. We shall send out the goods immediately after confirmation and you will get the tracking information right away

11.How to guarantee your service?

· Strict inspection during production

· Strictly check the products before shipment to ensure our packaging in good condition

· Track and receive feedback from customer regularly

12.What will you do about quality complaint?

·We will respond to customer within 24 hours.

·Our QC will retest the same item in the warehouse, if confirmed it is quality problem, we will make corresponding compensation.

13.What is the warranty time of the products?

The warranty time is 18 months based on the item details; We don't provide warranty time for original and used products.

Guangzhou TP Cloud Power International Construction Machinery Co., Ltd, in【Starting with the apex technology of power machinery, challenge infinte possibility, providing superior technology and high value products to the world, committed to creating a cleaner and more comfortable earth society】, through research & development, production, sales of excavator engine parts, achieved sustainable development.

Our main products include various powder metallurgy parts such as piston rings, cylinder liners and powertrains for excavator engines, we through using lead step technology development for the overwhelming majority of customers with low cost has the original value of the products, in order to realize the engine such as lightweight, low fuel fee【environmentally friendly engine manufacturing】has made a contribution. We pursuit the highest quality, by the world's first-class speed, manufacturing world-class products efficiently.