This arm cylinder seal kit is designed to replace worn or damaged seals within the hydraulic cylinder responsible for boom or arm movement on Volvo Samsung excavators. Manufactured with durable materials, it restores the cylinder's ability to hold pressure and prevent leaks, unlike a failed seal that allows fluid bypass and loss of function. Operators may experience slow or jerky arm movements, a loss of lifting capacity, or visible hydraulic fluid leaks from the cylinder rod when this seal kit is needed.
Always verify with serial number before ordering.
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Flush hydraulic lines before fitting new components. Use only manufacturer-specified hydraulic fluid. Check O-rings and backup rings for correct orientation. Bleed air from system after installation.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
The first sign of failing arm cylinder seals is often a noticeable drift or slow movement of the arm when not actively being controlled. If ignored, the cylinder will lose pressure more rapidly, leading to significantly reduced lifting power and potentially jerky operation. Continued operation with leaking seals can cause the hydraulic fluid to become contaminated and overheat, potentially damaging the cylinder bore.
Thoroughly clean the cylinder bore and rod before installing the new seals to prevent damage from debris. Ensure all seals are correctly oriented according to their design to prevent immediate leakage.
Inspect the cylinder rod for scoring or damage, and check the hydraulic fluid for signs of contamination or overheating.