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Second-hand excavator purchase—Distinguish between water soaking machines and accident machines

When there is a lot of rain, excavators often get flooded in various places. Many of these water soaking machines have been sold into the market! Once you buy a machine like this, prepare to sell it early! Let’s first talk about how to identify a water soaking machine! It is difficult to test out... Read More

Why are there iron pieces in the cylinder of excavator accessories?

Excavator accessories cylinders have multiple functions, such as transmitting power, isolating wear surfaces, reducing friction between components, suspending pollutants, controlling oxidation and cooling of component surfaces, etc. Many friends may wonder why they found iron pieces in the excava... Read More

Diagnosing faults by listening to the sound of excavator diesel engines (2)

It is inevitable that a diesel engine will malfunction during long-term work. The usual solutions are to check, ask, listen, and watch. The most effective and direct method is to judge and solve the problem through sound, and can use the sound to judge and solve the problem. Some prescient small ... Read More

Diagnosing faults by listening to the sound of excavator diesel engines (1)

It is inevitable that a diesel engine will malfunction during long-term work. The usual solutions are to check, ask, listen, and watch. The most effective and direct method is to judge and solve the problem through sound, and can use the sound to judge and solve the problem. Some prescient small ... Read More

Engine oil filter installation steps

The engine is the heart of engineering machinery and maintains the operation of the entire machine. During the operation of the engine, metal wear debris, dust, carbon deposits and colloidal sediments oxidized at high temperatures, water, etc. are constantly mixed into the lubricating oil. The fu... Read More

Breaking hammer failure solution

There are many faults of the breaker. One of the more troublesome problems is that the breaker does not strike or strikes abnormally. So how to solve the problem of the breaker not striking? This article introduces a few points to you, I hope it will be helpful to everyone. No attack at all 1. T... Read More

10 taboos in construction machinery maintenance-(6-10)

6. Polish the bearing bush with emery cloth For some inexperienced repairmen, scraping is a difficult job. Since the scraping technique is difficult to master, it is difficult for the bearings to meet the technical requirements. For this reason, when some people replace the bearing bush, in order... Read More

10 taboos in construction machinery maintenance(1-5)

1. Only add oil but don’t change it Engine oil is indispensable in the use of diesel engines. It mainly plays lubrication, cooling, cleaning and other functions. Therefore, many drivers will check the amount of lubricating oil and add it according to standards, but they neglect to check the quali... Read More

Analysis of fault phenomena of second-hand excavator working abnormal noise

The fault phenomena of abnormal noise in the excavator include abnormal noise in the excavator engine, abnormal rotation noise, and abnormal rotation noise. So what are the causes of abnormal noise in the excavator? Abnormal noise during excavator operation: 1. The excavator makes a squeaking no... Read More

Fault Analysis on Second-hand Excavator Upper Body Rotation Problem

The main reason why the upper body of the excavator cannot rotate is that other working devices operate normally when the excavator is working, but the upper body cannot rotate. Fault analysis is carried out based on the working principle of the excavator’s swing motor. It can be seen from ... Read More

Analysis of walking faults of second-hand excavators

Walking failure is one of the common faults of excavators. Excavators often wander off, affecting construction progress and sometimes causing serious safety hazards. Listed below are several main causes of walking failures and solutions. The output pressure of the travel proportional valve on th... Read More

PC-200 excavator engine failure analysis

A common engine problem of the PC-200 excavator is that the engine is running normally, but the working device moves slowly. The main reasons for this failure are: the pressure of the hydraulic oil circuit is too low, the engine speed sensor is damaged, and the displacement of the working pump is... Read More
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