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In construction machinery repair, replacing rolling bearings is a frequent task. However, given today’s uneven quality in the spare parts market, the reliability of construction machinery is often questionable, and after repair, the quality can be even worse. This involves both part quality issues ... Đọc thêm
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Originally, this was considered the most basic mechanical common sense, something even a vocational school teacher would dismiss. But in reality, bolt loosening is one of the most frequent repair issues in machinery. If ignored, it often leads to loss of fastening strength in machine parts, and in ... Đọc thêm
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Many operators have started performing their own machinery maintenance, which is a positive trend. It shows that technicians are recognizing the value of technical work—because skilled maintenance is highly valuable. However, mastering maintenance is not something that can be learned in a few days. ... Đọc thêm
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Insufficient machine power is a common but high-level fault in construction machinery. As a mechanic, this fault can be challenging to diagnose accurately on-site. The simplest cause is often fuel circuit blockage or clogged filters. However, accurate diagnosis under on-site conditions requires ... Đọc thêm
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1. Display Screen Not Turning On / Black Screen Possible Causes Power supply or fuse failure Loose connectors or wiring issues Faulty display screen Remedies Check fuse and power voltage Inspect connectors and wiring → clean or reconnect Replace the display module 2. Display Screen Flickering or ... Đọc thêm
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1. Fault Symptoms On-site, the operator reported that the boom sometimes moves fast and sometimes slow, showing random behavior. The issue is intermittent: sometimes the machine works a whole day without problem, while at other times it occurs four to five times within an hour. This fault affects ... Đọc thêm
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The throttle control on Volvo excavators usually involves mechanical throttle, electronic throttle (ECU/e-throttle), pedal or knob, sensors, and linkage. Faults may cause unstable engine idle, slow response, or inability to accelerate. 1. Slow Throttle Response or Engine RPM Not Increasing Possible ... Đọc thêm
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The air conditioning system of an excavator works on a similar principle to that of an automobile, consisting of a compressor, condenser, evaporator, expansion valve/capillary tube, blower, pipelines, and control circuits. Due to dusty environments, strong vibrations, and poor heat dissipation ... Đọc thêm
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Hướng dẫn Bảo trì Toàn diện cho Máy xúc lật Komatsu WA800-3 Hi-LIFT Hướng dẫn này được thiết kế để giúp người dùng đảm bảo vận hành đúng cách và kéo dài tuổi thọ của máy xúc lật Komatsu WA800-3 Hi-LIFT thông qua bảo trì thường xuyên và chi tiết. I. Bảo trì hàng ngày Vệ sinh: Vệ sinh máy xúc lật hàng ... Đọc thêm
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Kawasaki là một công ty dẫn đầu toàn cầu về công nghệ thủy lực, đặc biệt nổi tiếng với các bơm piston hướng trục được sử dụng trong các hệ thống thủy lực hở và kín. Các dòng sau đây đại diện cho các thế hệ và loại bơm Kawasaki khác nhau. 1. Dòng K3V ✅ Mô tả: Dòng K3V là một bơm piston hướng trục có ... Đọc thêm
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