This Boom Cylinder Seal Kit is essential for maintaining the hydraulic integrity of the boom cylinder on Volvo excavators. It contains all the necessary seals to prevent internal and external leakage, ensuring smooth and efficient boom operation. Failure of these seals typically manifests as a slow-moving or drifting boom, external fluid leaks from the cylinder, or a noticeable loss of lifting power.
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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 indication of seal failure is often a slow drift of the boom when not actively being operated or a slight sluggishness in boom extension/retraction. If left unaddressed, the boom may lose its holding pressure entirely, leading to uncontrolled descent, and significant external hydraulic fluid leaks will become apparent. This can compromise the machine's ability to perform its intended lifting tasks safely.
Carefully inspect the cylinder rod for any nicks or scratches before installing new seals, as imperfections can quickly damage the new seal material. Ensure all seals are lubricated with clean hydraulic fluid before insertion to prevent tearing.
Inspect the cylinder rod and bore for scoring or damage, and check the hydraulic fluid for contamination.