This boom cylinder seal kit is designed to replace worn or leaking seals within the main boom cylinder of Volvo excavators, ensuring proper hydraulic pressure retention. Manufactured to meet original equipment specifications, these seals provide a reliable barrier against fluid loss and contamination, unlike degraded original seals. Operators may observe hydraulic fluid leaks around the cylinder rod, slow or jerky boom movements, or a loss of lifting capacity when these 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.
The first indication of failing boom cylinder seals is often visible hydraulic fluid leakage from the cylinder rod or barrel. If left unaddressed, the leaks will worsen, leading to a gradual loss of lifting power and potentially erratic boom operation. Continued operation with compromised seals can cause internal cylinder damage and system contamination.
Thoroughly clean the cylinder bore and rod before installing the new seals to prevent nicks or tears. Ensure all seals are properly seated and lubricated with compatible hydraulic fluid before reassembly.
Inspect the cylinder rod for scoring or damage, and check the hydraulic fluid for contamination before replacing the boom cylinder seals.