This is a hydraulic cylinder seal kit specifically designed for the arm cylinder of Volvo excavators, ensuring the containment of hydraulic fluid and protection against external contaminants. Manufactured with durable materials, it maintains seal integrity far longer than worn components, preventing performance degradation. Operators may observe a gradual decrease in arm speed, external fluid leaks around the arm cylinder, or difficulty holding loads when this seal kit begins 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.
Early indications of failure include a slight delay in arm response or minor weeping of hydraulic fluid. If left unaddressed, the leakage will increase, leading to a noticeable loss of arm speed and holding power. Continued use with a compromised seal kit can result in internal cylinder damage and contamination of the hydraulic system.
Thoroughly clean the cylinder bore and rod to remove any debris or old seal material before installing the new seals. Ensure the seals are oriented correctly according to the manufacturer's instructions to prevent immediate failure.
Inspect the arm cylinder rod for damage and the hydraulic fluid for signs of contamination during seal replacement.