This is a boom cylinder seal kit designed to restore the sealing integrity of the boom cylinder on Volvo excavators, preventing hydraulic fluid leaks and maintaining optimal lifting performance. Manufactured with high-grade NBR rubber and durable metal components, it offers superior resistance to wear and contamination compared to a worn or damaged seal. Operators may experience slow or jerky boom movements, visible hydraulic fluid leaks around the cylinder, or a loss of lifting capacity when these seals fail.
Always verify with serial number before ordering.
Parts Trading Company · Mumbai, Est. 1956 · Same-day dispatch · Ships worldwide · GST invoice included
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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.
Visible hydraulic fluid leaks around the base or rod of the boom cylinder are the first sign of seal failure. If left unaddressed, the leaks will worsen, leading to a gradual loss of hydraulic pressure and slower, less responsive boom operation. Continued operation with severely degraded seals can result in significant hydraulic system contamination and potential damage to the cylinder rod.
Thoroughly clean the cylinder bore and rod before installing the new seals to prevent damage and ensure a proper seal. Do not use sharp tools to pry the seals into place, as this can easily nick or cut the sealing lip.
Inspect the hydraulic fluid for contamination and consider replacing the hydraulic filter when servicing the boom cylinder seals.