This arm cylinder seal kit is designed to replace the worn seals within the excavator's boom or arm hydraulic cylinder, preventing fluid leaks and maintaining proper cylinder function. It is manufactured using durable materials that meet Volvo's performance specifications, offering a reliable seal compared to a degraded or cracked seal. Operators may notice hydraulic fluid leaking externally around the cylinder rod, slow or jerky cylinder movement, or a loss of lifting/digging force 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.
Visible hydraulic fluid leaks from the cylinder rod are the most common initial symptom of a failed seal kit. If left unaddressed, the leaks will worsen, leading to a gradual loss of hydraulic pressure and cylinder speed. Continued operation with leaking seals can cause contamination of the hydraulic system and damage to the cylinder bore.
Carefully clean the cylinder bore and rod before installing new seals to prevent damage from dirt or debris. Ensure all seals are oriented correctly according to the manufacturer's instructions.
Inspect the cylinder rod for scoring or damage, and clean or replace the hydraulic filter when replacing the arm cylinder seal kit.