This bucket cylinder seal kit is essential for maintaining the integrity of the hydraulic cylinder that actuates the excavator's bucket, preventing fluid loss and contamination. It is constructed from durable, high-performance sealing materials designed to withstand high pressures and abrasive conditions, offering superior longevity compared to worn seals that allow leakage and reduced cylinder performance. Operators may notice a slow or jerky bucket curl/dump function, external hydraulic fluid leaks around the cylinder rod, or a loss of holding pressure when this seal kit is required.
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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 failing bucket cylinder seals is often a gradual loss of speed or power in the bucket curl and dump functions. This can progress to noticeable external hydraulic fluid leaks from the cylinder rod seal area and a loss of the cylinder's ability to hold its position under load. If left unaddressed, continued leakage can lead to contamination of the hydraulic system and potential damage to the cylinder bore.
Thoroughly clean the cylinder bore and rod before installing new seals to prevent contamination and damage. Ensure all seals are correctly oriented and lubricated with appropriate hydraulic fluid to prevent tearing during installation.
Inspect the cylinder rod for scoring or pitting, and check the piston seal for wear when replacing the bucket cylinder seal kit.