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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 -
Excavator common fault repair methods
Hydraulic system failure 1. Insufficient oil in the excavator If there is insufficient oil, air will be sucked into the hydraulic pump, causing the system to become insensitive or unable to work. At this time, the amount of hydraulic oil should be checked and refueled in time. 2. Hydraulic oil te...Read more -
Common faults and repairs of truck-mounted cranes
Truck-mounted crane is a commonly used lifting equipment, but it is inevitable that some failures will occur during long-term use. The following are common faults and maintenance solutions for truck-mounted cranes: 1. The lifting capacity is reduced or unable to lift: This may be caused by insuf...Read more -
Daily maintenance methods of truck cranes
Routine maintenance of truck cranes is the core to ensure that the truck crane can work normally for a long time. Only by doing routine maintenance of your truck crane can your truck crane work more safely and efficiently. Today I will bring you the daily maintenance methods of truck cranes. Rega...Read more -
Things to note when purchasing a second-hand grader
Second-hand graders are a common type of construction machinery used for road construction, land leveling and other tasks. When purchasing a second-hand motor grader, you need to pay attention to the following aspects: 1. Appearance inspection: First, the appearance of the second-hand motor grad...Read more -
Things to note when buying a second-hand roller
Road rollers are indispensable machinery in the construction of roads and other infrastructure. Purchasing a brand new roller can be expensive, but choosing to purchase a used roller can be an affordable option. However, when buying a second-hand roller, we need to pay attention to the following ...Read more -
Maintenance of grader hydraulic systems and working devices
Hydraulic system (1) Check the oil level of the hydraulic oil tank The oil level should be at the “FULL” mark on the oil dipstick. If the oil level is insufficient, add enough oil. (2) Check the hydraulic oil pump, hydraulic motor, cylinder pipeline and pipe joints When working, there...Read more
