This is an Arm Cylinder Seal Kit designed to replace worn seals within the hydraulic arm cylinder of Volvo excavators. It is manufactured to meet stringent OEM quality standards, ensuring a reliable seal that prevents internal leakage and external contamination, unlike a degraded seal that allows fluid loss and dirt ingress. Operators may notice a loss of arm lifting power, slow or jerky arm movements, or visible hydraulic fluid leaks around the cylinder rod 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.
Initial signs of a failing arm cylinder seal kit include a noticeable decrease in the speed and power of the arm's lifting and lowering functions. If ignored, the problem will progress to include jerky or erratic arm movements and potentially visible hydraulic fluid leaks from the cylinder rod. Continued operation with a compromised seal can lead to internal cylinder damage and loss of hydraulic system efficiency.
Ensure the cylinder rod is completely clean and free of any debris or burrs before attempting to install the new seals, as even minor imperfections can cause immediate damage. Avoid using excessive force or sharp tools when seating the seals, as this can easily nick or cut them, compromising their sealing ability.
Inspect the hydraulic fluid for contamination and check the condition of the cylinder rod for any scoring or wear when replacing the arm cylinder seals.