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Normally, when hydraulic oil becomes contaminated by water, the standard procedure is to replace it with new oil. If the replacement is incomplete, it can leave hidden risks in the hydraulic system. There are multiple cases of hydraulic pump and swing motor failures and hydraulic cylinder seal ... Read More
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A batch of CAT 349E excavators (including the 336E series) purchased from Shenzhen entered the market. After a period of use, these machines all suffered from derated power and could not operate normally. Even the so-called “experts” who claim they can fix anything were unable to resolve the ... Read More
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This discussion covers basic knowledge, not a magical one-step solution. However, if you truly internalize this, it can bring significant practical benefits. Unfortunately, technical discussions in many forums are fading, and most posts are just: “My machine broke, what should I do?” 1. Purpose of ... Read More
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Construction machinery often encounters flooding due to construction activities, accidents, or natural disasters. Operators are advised to follow the guidelines below to properly handle machinery after it has been submerged. I. Do Not Start the Machine Prematurely Before thoroughly inspecting a ... Read More
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How can you distinguish high temperatures caused by poor combustion in an internal combustion engine? This is one of the occasional causes of high coolant temperatures in diesel engines. Because it belongs to a higher-level fault category and occurs infrequently, it’s rarely included in general ... Read More
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During the operation of construction machinery, rollovers happen from time to time for various reasons. We will not discuss safe operation practices or insurance claims here — this is a focused discussion on restorative handling of machines after a rollover. Whether small machines of a few tonnes or ... Read More
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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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