This is a hydraulic cylinder seal kit designed to maintain the integrity of the bucket cylinder in Volvo excavators. It utilizes high-grade NBR rubber and durable metal components to prevent fluid leakage and contamination, ensuring optimal hydraulic system performance. Failure of these seals typically manifests as slow or jerky bucket movements, external hydraulic fluid leaks around the cylinder rod, or a loss of lifting/holding force.
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 seal failure include a slight external oil weepage from the cylinder rod or a noticeable decrease in bucket breakout force. If ignored, the leakage will worsen, potentially leading to system contamination and reduced hydraulic efficiency, risking inconsistent operation.
Ensure the cylinder rod is thoroughly cleaned and free of any burrs or debris before installing the new seals to prevent immediate damage. Avoid using sharp tools that could nick or cut the seal lips during insertion.
Inspect the cylinder rod for any scoring or damage that could compromise the new seals' performance.