This boom cylinder seal kit is designed to replace worn or leaking seals within the boom hydraulic cylinder, ensuring proper containment of hydraulic fluid and maintaining cylinder function. Manufactured to meet Volvo's exacting standards, these seals provide superior resistance to wear and hydraulic fluid degradation compared to compromised seals that allow leakage. Operators may notice slow or jerky boom movements, external fluid leaks around the cylinder rod, or a loss of lifting capacity when the cylinder seals begin to fail.
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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 from the boom cylinder rod are the most common initial symptom of seal failure. If ignored, the cylinder may lose pressure, resulting in slower or weaker boom extension and retraction, and potentially affecting the machine's stability. Continued operation with leaking seals can lead to internal cylinder damage and costly repairs.
Thoroughly clean the cylinder bore and rod before installing the new seals to prevent damage from debris. Ensure the seals are lubricated with a compatible hydraulic fluid before insertion to ease installation and prevent tearing.
When replacing the boom cylinder seals, inspect the cylinder rod for scoring or damage and check the hydraulic fluid for contamination.