This is a comprehensive seal kit specifically designed for the boom cylinder on Volvo excavators, containing all necessary seals and O-rings to restore its functionality. It is manufactured from high-grade materials that meet or exceed OEM specifications, providing superior resistance to wear and hydraulic fluid compared to degraded seals. Operators will typically observe hydraulic fluid leaks around the boom cylinder rod or a loss of lifting power and drift 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.
The first sign of failing boom cylinder seals is often visible hydraulic fluid leakage from the cylinder rod or around the cylinder base. Continued operation will lead to a gradual loss of lifting capacity and uncontrolled cylinder drift under load. If left unaddressed, significant leakage can deplete hydraulic fluid levels and potentially cause damage to the cylinder bore.
Carefully clean all internal cylinder surfaces and grooves before installing new seals to prevent damage and ensure a proper seal. Avoid using sharp tools that could nick or scratch the seal lips during installation.
Inspect the cylinder rod for scoring or damage, and clean the hydraulic filter when replacing boom cylinder seals.