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For any machine, maintenance is a necessity — not a choice. When a machine reaches the point where it constantly needs major repairs, that’s often a sign that its service life is nearly over. I’m not talking about minor maintenance — because regular minor repairs alone won’t save a machine that’s ... Read More
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Construction machinery cannot operate properly without the assistance of a cooling system. Maintaining this system is one of the key factors that ensures your machine works normally and efficiently. Since there are many different types of construction equipment, the cooling capacity of their engines ... Read More
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I once thought I was the only one who had encountered cases where the engine fan was installed backwards — but as it turns out, even in the photos shared by one of our fellow operators, a sharp-eyed member nicknamed “Old Naughty Boy” immediately spotted that the fan had been installed in the wrong ... Read More
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Application and Effectiveness of Brush Plating in the Repair of Hydraulic Machinery Cylinders Under proper technical conditions, using brush plating technology for on-site repair of hydraulic cylinder rods in construction machinery is an ideal and cost-effective restoration method. The key ... Read More
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When machines are in operation, problems and malfunctions are inevitable. When you can’t fix them yourself, there are usually a few common ways operators seek help: Call the nearest mechanic. Ask another operator who’s dealt with similar issues. Turn to an experienced repair shop. Contact a dealer’s ... Read More
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Building a Reliable Technical Support Network To better provide reliable, timely, and high-quality repair and maintenance services for our fellow operators (not limited to excavators but covering various types of construction machinery), we have organized a team of experienced service engineers and ... Read More
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The legendary CAT 320 (323) D-series — once hailed as the “first-generation miracle machine” — has been in operation for over a decade and is now entering its twilight years. Known for their strong power and high fuel consumption, these machines are now giving their long-time owners a real headache ... Read More
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Nowadays, almost all machines come equipped with air-conditioning systems, except for open-cabin naturally ventilated models. When I first started in on-site CAT technical service more than twenty years ago, this was almost unimaginable. Back then, only CAT machines offered air-conditioning as ... Read More
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Regardless of the machine size, brand, or hydraulic structure—even for gear pumps—it is crucial to remove any air trapped in the hydraulic system after maintenance or component replacement. This step is very important. For example, a CAT 330C excavator suffered three consecutive new gear pump ... Read More
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The 4M40 engine was installed in several models of CAT excavators as well as a few small models under the Sumitomo brand. This engine is now discontinued, but it was originally designed by Mitsubishi for the Pajero (Leopard) SUV. It was intended to be a high-speed engine, and not only CAT but also ... Read More
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