This is a boom cylinder seal kit, containing all the necessary seals and O-rings to rebuild a hydraulic boom cylinder for optimal performance. Manufactured to meet Volvo's high standards, it ensures a leak-free seal and smooth cylinder operation, unlike a worn kit that can lead to hydraulic fluid leaks and sluggish boom movement. Operators may notice hydraulic fluid leaking from the cylinder rod, slow or jerky boom extension/retraction, 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 around the cylinder rod. If left unaddressed, this leakage will worsen, leading to a loss of hydraulic pressure and slower, potentially jerky, cylinder operation. The ultimate consequence is reduced lifting capacity and potential inability to operate the boom effectively.
Carefully inspect the cylinder bore and rod for any nicks or scratches that could damage the new seals before installation. Ensure all seals are properly seated and lubricated with appropriate hydraulic fluid.
Inspect the hydraulic fluid for contamination and check the condition of the cylinder barrel and rod for scoring when replacing the seal kit.