This seal kit is designed to replace worn or leaking seals within the boom cylinder of Volvo excavators, ensuring proper hydraulic pressure retention and smooth operation. It meets stringent OEM quality standards, providing a reliable seal that prevents contamination and fluid loss, unlike degraded original seals. Operators may notice slow or jerky boom movements, or visible hydraulic fluid leaks around the cylinder rod when these seals begin to 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.
Initial signs of failure include a slight loss of hydraulic pressure in the boom circuit, leading to slower lifting speeds. If ignored, the leaks will worsen, potentially causing the boom to drift down under load and requiring more frequent hydraulic fluid top-offs. Continued operation with failing seals risks internal cylinder damage and loss of boom control.
Thoroughly clean the cylinder bore and piston rod before beginning installation to prevent introducing contaminants. Ensure the new seals are properly oriented and seated without twisting or pinching during insertion.
Inspect the hydraulic fluid for contamination and the cylinder rod for scoring or wear during seal replacement.