This boom cylinder seal kit is designed to maintain hydraulic pressure within the boom cylinder, ensuring smooth and controlled operation of the excavator's boom. It is manufactured with high-quality sealing materials that resist wear and degradation, offering superior longevity compared to a worn or leaking seal. Operators may observe slow or jerky boom movement, external hydraulic fluid leaks from the cylinder rod, 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 indication of a failing boom cylinder seal is often visible hydraulic fluid leakage around the cylinder rod. If ignored, the cylinder may lose pressure, resulting in slower or weaker boom movements and reduced lifting capacity. Prolonged operation with leaking seals can lead to internal cylinder damage and contamination of the hydraulic system.
Thoroughly clean the cylinder bore and rod before installing the new seals to prevent damage from dirt or debris. Ensure all seals are properly seated and lubricated to prevent tearing during installation.
Inspect the cylinder rod for scoring or damage, and check the hydraulic fluid for contamination when replacing the boom cylinder seals.