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This Komatsu hydraulic excavator “PC78UU-6E0” had been subjected to heavy use over many years of field work when we received a consultation regarding oil leaks occurring from all cylinder areas during operation. Oil leaks not only cause reduced power and operational issues during work, but also increase the risk of environmental contamination and serious accidents. The site supervisor was concerned that “the machine might become unusable during critical operating days,” and was troubled by the possibility of work stoppages.

By overhauling the cylinders, we can fundamentally resolve such problems and improve both safety and work efficiency. In response to the owner’s desire to “have it properly repaired so it can be used with confidence again, even if it requires major repairs,” our company handled the repair and overhaul of all cylinders (arm cylinder, bucket cylinder, offset cylinder, and bucket cylinder). Thank you very much to Mr. K from Hanno City, Saitama Prefecture, for your continued business.

When oil begins to leak from the cylinders of your valuable hydraulic excavator, not only operational efficiency but also safety is significantly compromised. By performing repairs and overhauls promptly, you can maintain your equipment in optimal condition and ensure smooth progress of field operations.

If you have any concerns such as “the machine has been sluggish lately” or “I’m worried about oil leaks,” please feel free to contact us. We leverage our many years of experience and technical expertise to provide prompt and thorough repairs. We accept inquiries and consultations via phone, email, or direct message—whichever method you prefer. Even if you have a small question like “Is it safe to continue using it as is?” we would be happy to hear from you.

When you encounter difficulties with construction machinery repairs, please contact our company. Our skilled staff will conduct thorough inspections and repairs to properly support your equipment. We will do our utmost to help you use your valuable machinery safely for many years to come.