This seal kit is designed to replace worn or damaged seals within the arm cylinder of Volvo excavators, ensuring proper hydraulic system function and preventing fluid leaks. It is manufactured to meet stringent OEM standards, offering superior durability and sealing performance compared to degraded original seals. Operators may notice slow or jerky arm movements, external hydraulic fluid leaks around the arm cylinder, or a loss of lifting power when this 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.
Visible hydraulic fluid leakage around the arm cylinder rod is the first sign of seal failure. If ignored, the leakage will increase, leading to a gradual loss of hydraulic pressure and slower, less responsive arm operation. Continued operation with failing seals can result in significant hydraulic system contamination and potential damage to other cylinder components.
Ensure the cylinder bore is meticulously clean before inserting the new seals to prevent premature wear. Avoid using sharp tools that could nick or scratch the seals during installation.
Inspect the cylinder rod for scoring or pitting, and check the hydraulic fluid for contamination when replacing arm cylinder seals.