This bucket cylinder seal kit is designed to replace worn seals within the hydraulic cylinder responsible for actuating the excavator's bucket. It restores the cylinder's ability to hold pressure and prevent leaks, ensuring smooth and efficient bucket operation, unlike a damaged kit that allows fluid bypass. Operators may notice slow or weak bucket curl/dump actions, external hydraulic fluid leaks around the cylinder rod, or a bucket that drifts down under load 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 indication of a failing seal kit is often a slow or weak bucket curl or dump function. If ignored, external leaks will become more pronounced, and the cylinder may lose pressure, causing the bucket to drift. This can lead to inefficient operation and potential hydraulic system contamination.
Thoroughly clean the cylinder bore and piston rod before installing the new seals to prevent damage. Ensure all seals are properly seated and lubricated to avoid tearing during installation.
Inspect the cylinder rod for scoring or damage, and check the hydraulic fluid for contamination before replacing the seals.