This boom cylinder seal kit is essential for maintaining the hydraulic integrity of the excavator's boom cylinder, preventing fluid leaks and ensuring smooth operation. Manufactured to Volvo's high standards, these seals provide robust protection against contamination and wear, unlike degraded seals that allow hydraulic fluid to escape and dirt to enter. Operators may notice slow or jerky boom movements, external hydraulic fluid leaks from the cylinder, or a loss of lifting power if 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 ignored, this can lead to a gradual loss of hydraulic pressure and slower, less responsive boom movements. Continued operation risks significant hydraulic system contamination and potential cylinder damage.
Carefully clean the inside of the cylinder bore and the piston rod before installing the new seals to prevent damage. Ensure all seals are properly seated and lubricated to prevent tearing during installation.
Inspect the hydraulic fluid for contamination and check the condition of the cylinder rod for any scoring or wear.