PC1250 TOP ROLLER 21N-30-00130 KM2419

We undertake product customization

Brand: KOMATSU

Type: EXCAVATOR

Model: PC1250 TOP ROLLER 21N-30-00130 KM2419

Weight: 90 Kg

CARRIER ROLLER/TOP ROLLER/UPPER ROLLER

Our Service

♦ 100% quality assurance, develop and manufacture follow original ones;

♦ Reasonable stock and timely delivery;

♦ Quick response within 24 hours ;

♦ Long-term strong and steady supplying ability;

♦ One-to-one products factory. Ensure the best quality;

♦ The first-class logistics & Ensure that your goods arrived safely;

♦ Goods will Be packed safe & carefully;

♦ Excellent After-sales service. Track usage. Positive feedback response;

♦ Establish inquiry library for you, we are your professional sourcing consultant.

1. You are a trader or a manufacture?

We are an industry and trade integration business, our factory and sales department are located in Quanzhou Nanan Distric

2. How can I be sure the part will fit my machine?

Give us correct model number/machine serial number/ any numbers on the parts itself. Or measure the parts give us dimension or drawing.

3. How about the payment terms?

We usually accept T/T, other terms also could be negotiated.

4. What is your minimum order?

It depends on what you are buying. Normally, our minimum order is one 20' full container and LCL container (less than a container load) can be acceptable.

5. What about Quality Control?

We have a perfect QC system for the perfect products. A team who will detect the product quality and specification piece carefully, monitoring every production process until packing is complete, to ensure product safety into container.

Delivery Time:

Generally, if we have stock, it will take about 7-day delivery time. Or it will take about 20 to 50 days after receiving your advance payment. The specific delivery time depends on the items and quantity of your order.

Diagram of each part(Conventional)

1：Schematic diagram of  undercarriage parts

2：Schematic diagram of excavator hydraulic cylinder

3：Schematic diagram of idler 

4:Schematic diagram of track roller

5:Schematic diagram of track adjuster

6:Schematic diagram of track group

7:Schematic diagram of sprocket(segment)

8:Schematic diagram of top roller

9:Schematic diagram of hydraulic cylinder

The carrier roller leaks oil. Don't rush to replace it. It can be repaired!
The four-wheel area is very familiar to the old drivers who deal with excavators every day. Generally, the four-wheel area belongs to vulnerable parts. If it is broken or worn, you can directly find the boss to replace it.

It's easy to replace it. What I fear most is that there is oil leakage in the tugboat. Oil leakage means that the fault point must be found. The troubleshooting process is not simple. Sometimes it even costs a lot of money to ask the master for disassembly and inspection.

Fault phenomenon:

The phenomenon is obvious and simple. The operator found that the supporting sprocket had oil leakage (oil leakage) and directly fed it back to the owner.

Fault analysis:

when driving for a long time and a long distance, the tugboat will leak oil, which needs careful observation and confirmation

Shaft wear, which will certainly cause the problem of oil leaking.

The oil seal of top roller is aging also will cause oil leaking

Troubleshooting

1. Remove the supporting wheel from the X frame support, open the outer end cover, and separate the rotating wheel body from the inner stator;

2. Remove the floating oil seal, clean the corresponding position of the wheel body and stator with the floating oil seal, and note that there shall be no oil stain;

3. Install a new floating oil seal, add grease, reassemble the wheel body and stator, and install the end cover;

4. Install the repaired carrier roller back to the frame and idle for about 5 minutes to ensure that there is no oil leakage.

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