This seal kit is designed to replace worn or damaged seals within the arm cylinder of Volvo excavators, ensuring proper hydraulic pressure retention and smooth boom operation. It is manufactured to meet stringent Volvo quality standards, providing a reliable seal that prevents fluid leaks and contamination, unlike degraded original seals. Operators may notice slow or jerky arm movements, external hydraulic fluid leaks around the cylinder rod, or a loss of lifting power when this seal kit fails.
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.
External hydraulic fluid leaks around the arm cylinder rod are the first sign of seal failure. If ignored, the leaks will worsen, leading to a gradual loss of hydraulic pressure and slower, less responsive arm movements. Eventually, the cylinder may not be able to hold its position or lift loads effectively, impacting machine productivity.
Clean the cylinder bore and rod thoroughly before installation to remove any debris that could damage the new seals. Avoid using sharp tools when seating the seals, as this can cause nicks and tears.
Inspect the hydraulic fluid for contamination and consider replacing the hydraulic filter when servicing the arm cylinder seals.