This is a seal kit specifically designed for the second boom cylinder on Volvo excavators, containing all necessary seals and O-rings to restore its functionality. It is manufactured to meet OEM specifications, ensuring a tight seal and preventing hydraulic fluid leaks, unlike a worn or damaged seal. Operators may observe hydraulic fluid leaking from the cylinder rod, slow or jerky boom movement, or a loss of lifting capacity when this seal kit fails.
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 sign of a failing boom cylinder seal kit is often visible hydraulic fluid leakage from the cylinder rod. This can progress to slow or erratic boom operation and a noticeable reduction in the excavator's lifting power. If left unaddressed, significant leakage can lead to hydraulic system contamination and potential damage to the cylinder bore and piston.
Carefully inspect the cylinder rod for any nicks, scratches, or scoring before installing new seals, as these imperfections will damage the new seals. Ensure all old seal material is completely removed from the cylinder grooves to guarantee a proper fit.
Inspect the hydraulic fluid for contamination and check the condition of the cylinder rod and bore for any signs of wear or damage.