This is an arm cylinder seal kit designed to maintain hydraulic system integrity for Volvo excavators. It ensures that the hydraulic fluid remains contained within the cylinder, preventing leaks and maintaining optimal operating pressure. A worn seal kit will manifest as external hydraulic fluid leaks around the arm cylinder rod and a noticeable loss of lifting power or slow boom movement.
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.
External hydraulic fluid leaks around the arm cylinder rod are the first sign of a failing seal kit. If left unaddressed, the leaks will worsen, leading to a gradual loss of hydraulic pressure and slower, less responsive arm movements. Continued operation with a severely compromised seal kit can lead to insufficient hydraulic power for critical lifting and digging operations.
Clean the cylinder bore and rod thoroughly before installing new seals to prevent damage from debris. Ensure seals are seated squarely and do not twist during installation.
Inspect the cylinder rod for any scoring or damage that could prematurely wear the new seals.