This is a comprehensive seal kit specifically designed for the arm cylinder of Volvo excavators, containing all necessary seals to restore proper hydraulic function and prevent fluid leaks. Manufactured to meet rigorous OEM standards, these seals offer superior resistance to wear, heat, and hydraulic fluid degradation compared to worn or damaged original seals. Operators may observe external hydraulic fluid leaks around the arm cylinder, sluggish arm movement, or a loss of holding pressure when the seals in this kit begin to fail.
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 failing arm cylinder seals is typically visible hydraulic fluid leakage from the cylinder rod or rod-end gland. If left unaddressed, the leakage will worsen, leading to a gradual loss of hydraulic pressure and slower, less responsive arm movements. Continued operation with leaking seals can result in internal cylinder damage and contamination of the hydraulic system.
Carefully clean the cylinder bore and rod to prevent damaging the new seals with any residual dirt or grit. Ensure all new seals are properly lubricated with a compatible hydraulic fluid before insertion to prevent tearing.
Inspect the cylinder rod for scoring or damage, and check the hydraulic fluid for contamination before installing a new seal kit.