This is an arm cylinder seal kit, specifically designed to replace worn seals within the hydraulic arm cylinder of Volvo excavators. Manufactured to meet stringent OEM quality standards, it ensures a tight seal and prevents hydraulic fluid leakage, maintaining optimal cylinder performance. Operators may observe hydraulic fluid leaks around the arm cylinder, slow or jerky arm movements, or a loss of holding pressure 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 sign of a failing arm cylinder seal kit is typically visible hydraulic fluid leakage around the cylinder rod or at the cylinder base. If left unaddressed, the leakage will worsen, leading to a gradual loss of lifting capacity and slower, less precise arm movements. Continued operation with leaking seals can lead to internal cylinder damage and contamination of the hydraulic system.
Carefully clean the cylinder bore and piston rod before installing the new seals to prevent damage from sharp edges or debris. Ensure all seals are properly seated and oriented according to the kit's instructions to prevent immediate leakage.
Inspect the cylinder rod for scoring or damage, and check the hydraulic fluid for contamination before installing the new seal kit.