This is an arm cylinder seal kit specifically designed for Volvo excavators, ensuring the integrity of the hydraulic arm actuation system. It provides essential sealing to prevent internal and external fluid leakage, maintaining optimal hydraulic pressure and cylinder function. Symptoms of a worn kit include a sluggish or unstable arm, external fluid leaks from the cylinder, or the arm drifting down when not actively controlled.
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.
Initial signs of a failing arm cylinder seal kit include a noticeable decrease in arm lifting power or a tendency for the arm to drift downwards. If left unaddressed, the leakage will increase, potentially leading to overheating of the hydraulic system and reduced operational efficiency. Prolonged use with faulty seals can cause accelerated wear on the cylinder bore and piston.
Carefully inspect the cylinder rod for any nicks or scratches before installing the new seals, as these imperfections can cause immediate leaks. Ensure all sealing surfaces are clean and free of debris to prevent damage during assembly.
When replacing arm cylinder seals, it is advisable to inspect the hydraulic fluid for contamination and check the condition of the cylinder rod and barrel.