This hydraulic cylinder seal kit is designed to replace worn or damaged seals within the hydraulic cylinders of Volvo excavators, restoring proper sealing and preventing fluid leakage. It is manufactured from high-grade materials to meet or exceed OEM performance specifications, offering superior resistance to wear and hydraulic fluid compared to degraded original seals. Operators may observe external hydraulic fluid leaks from cylinder rod glands, a spongy or slow-acting cylinder, or a loss of lifting/digging force when this seal kit is needed.
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 indication of failing cylinder seals is often visible hydraulic fluid leakage around the cylinder rod or casing. If ignored, the leakage will worsen, leading to a gradual loss of hydraulic pressure and cylinder speed, and potentially causing the cylinder to drift or fail to hold its position. Prolonged operation with leaking seals can lead to internal cylinder damage and contamination of the hydraulic system.
Thoroughly clean the cylinder bore and piston rod before installing new seals to prevent damage from debris. Ensure all seals are properly seated and lubricated to avoid tearing during assembly.
Inspect the cylinder rod for scoring or damage, and check the hydraulic fluid for contamination when replacing cylinder seals.