This is a hydraulic cylinder seal kit designed to replace worn seals in the boom cylinder of Volvo excavators. It is manufactured to meet stringent Volvo quality standards, ensuring a reliable seal that prevents fluid leakage and maintains system pressure, unlike degraded seals that allow contamination and performance loss. Operators may notice slow or jerky boom movements, external fluid leaks around the cylinder rod, or a loss of lifting power 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 external fluid leak around the boom cylinder rod and a noticeable decrease in lifting force. If ignored, the leak will worsen, leading to increased hydraulic system contamination and sluggish cylinder operation. Continued operation with severely degraded seals risks significant hydraulic system damage and loss of critical machine functions.
Thoroughly clean the cylinder bore and rod before beginning assembly to prevent damaging the new seals. Ensure all seals are properly oriented and seated before reassembling the cylinder components.
Inspect the hydraulic fluid for contamination and consider replacing the hydraulic filter when servicing the boom cylinder seals.