This is an Arm Cylinder Seal Kit designed to maintain the integrity of the hydraulic arm cylinder system in Volvo excavators. It utilizes high-quality NBR rubber and steel components to prevent internal and external leaks, ensuring optimal hydraulic pressure and performance, unlike worn seals that allow fluid bypass and reduced cylinder responsiveness. Operators may notice slow or jerky arm movements, a loss of lifting power, or visible hydraulic fluid leaks around the arm cylinder when these seals begin to fail.
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.
Initial signs of a failing arm cylinder seal kit include a slight sluggishness in arm movement or minor external fluid seepage. If ignored, the leakage will worsen, leading to a noticeable loss of hydraulic pressure and reduced lifting capacity. Continued operation without addressing the issue risks significant damage to the hydraulic system and potential downtime.
Thoroughly clean the cylinder bore and rod before installation to prevent debris from damaging the new seals. Avoid using sharp tools to install the seals, as this can easily cause nicks or cuts that compromise their sealing ability.
Inspect the hydraulic fluid for contamination and consider replacing the hydraulic filter when servicing the arm cylinder seals.