This is a boom cylinder seal kit designed to replace worn seals within the main boom cylinder of Volvo excavators, preventing hydraulic fluid leaks. Manufactured to meet stringent OEM quality standards, these seals provide a reliable barrier against contamination and fluid loss, unlike degraded original seals. Operators may notice external hydraulic fluid leaks around the boom cylinder, or a gradual loss of lifting power if the seals fail.
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.
Visible hydraulic fluid leaks around the boom cylinder rod are the most common initial symptom of seal failure. If not addressed, these leaks will worsen, leading to a gradual loss of hydraulic pressure and lifting capacity. Continued operation with leaking seals can lead to internal cylinder damage and potential system contamination.
Carefully inspect the cylinder rod for any scoring or damage before installing new seals, as imperfections can quickly damage the new seals. Ensure all old seal material is completely removed from the cylinder grooves.
Clean the inside of the cylinder bore and inspect the rod surface for damage before installing the new seals.