3CX, 4CX
The hydraulic oil tank is a key component of the system. Its job is to safely store the oil, provide initial cooling, and protect it from contamination. If your tank is cracked and leaking (especially at the welds), heavily corroded, dented, or is severely contaminated inside with sediment that cannot be removed, it is time for a replacement. Continuing to operate with a damaged tank not only risks losing expensive oil but, most importantly, contaminating the injection system, leading to costly failure of the pump and valve blocks.
If the old tank was contaminated or corroded, the entire hydraulic system must be flushed before installing the new one to prevent debris from damaging new components.
The oil level sight glass, suction strainer, and filler cap must be transferred from the old tank. This is a perfect opportunity to inspect them and, if necessary, replace them with new ones.
After replacing the tank, you must install a new hydraulic oil filter (e.g., from the REDX brand) and refill the system with fresh, clean oil (e.g., HYPTRON).
Ensure that the supply and return lines are correctly connected and that the hose clamps are tight to prevent air from entering the system.
Answer: Yes, it could be a contributing factor. A dented or heavily contaminated tank has a reduced surface area for heat dissipation. However, the main cause is usually old oil or a clogged filter.
Question: Can I weld a cracked tank?Answer: It is highly not recommended. Welding thin steel is difficult, and vibrations during machine operation often cause the weld to crack again. A replacement is the only reliable solution.
Question: What is the main cause of tank cracking?Answer: The most common causes are mechanical damage (impacts) and material fatigue from constant vibrations, especially if the tank mountings are loose or damaged.
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Reinforced Steel Construction
Maximum resistance to damage
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Corrosion Protection
Durable and aesthetic appearance
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Perfect Fit
Factory look and easy installation
The accuracy and quality of materials guarantee long and trouble-free use without the need for frequent replacement.
A clean, factory-new tank eliminates the risk of system contamination, protecting the pump and valve blocks from failure.
The GX-AFTER brand is a proven and safe alternative that offers quality comparable to original parts at a much better price.
If you are unsure whether the selected product is suitable for your machine, contact us and we will help you choose the right part and provide practical advice in minutes.
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