This is a hydraulic seal kit specifically designed for the bucket cylinder of Volvo EC55 excavators. It contains all the necessary seals to effectively rebuild the bucket cylinder, preventing hydraulic fluid leaks and maintaining optimal cylinder performance. Manufactured to meet rigorous OEM standards, this kit provides a durable and precise seal that outperforms worn or degraded original seals. Operators may observe a slow bucket curl or drop, or a visible hydraulic fluid leak from the cylinder rod 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.
Initial signs of failure include a slight delay in bucket curl or a tendency for the bucket to drift downwards under load. If left unaddressed, the hydraulic fluid leak will worsen, leading to a loss of lifting capacity and potentially uncontrolled bucket movement. Continued operation with a failing seal kit can cause scoring on the cylinder rod and damage to internal cylinder components.
Thoroughly clean the inside of the cylinder barrel and the cylinder rod before installing the new seals to prevent contamination. Ensure all seals are correctly oriented and lubricated with compatible hydraulic fluid prior to installation.
When replacing the bucket cylinder seals, inspect the cylinder rod for any scratches or wear that might require polishing or replacement.