This is a hydraulic cylinder seal kit designed to maintain the integrity of the boom cylinder in Volvo excavators. It utilizes high-quality NBR rubber and durable metal components to ensure a tight seal, preventing fluid loss and contamination, which is crucial for optimal hydraulic system performance. Failure of these seals typically manifests as slow or jerky boom movements, visible hydraulic fluid leaks around the cylinder rod, and a noticeable decrease in lifting capacity.
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.
The first sign of seal failure is often a slow drift of the boom when not actively being operated. If ignored, this can progress to noticeable external fluid leakage and reduced hydraulic pressure, affecting the boom's lifting power. Continued operation with compromised seals risks internal hydraulic system contamination and potential damage to other components.
Ensure the cylinder rod is clean and free of any burrs or damage before attempting to install the new seals. Do not use excessive force or sharp tools, as this can easily damage the new seals during installation.
Inspect the hydraulic fluid and filter for signs of contamination, and check the cylinder rod for any scoring or damage that could compromise the new seals.