This arm cylinder seal kit is essential for maintaining the integrity of the hydraulic arm cylinder, preventing leaks and ensuring smooth, powerful operation of the excavator's arm. Manufactured to meet stringent Volvo quality specifications, it provides durable sealing that resists wear and contamination, unlike worn seals that allow fluid loss and ingress of damaging particles. Operators may notice slow or weak arm movements, or a tendency for the arm to drift downwards when the arm cylinder seals begin to fail.
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 observable symptom of arm cylinder seal failure is often a gradual loss of lifting power or a slow drift of the arm when the hydraulic control is released. If left unaddressed, the cylinder may leak significantly, leading to reduced hydraulic pressure and potentially uncontrolled descent of the arm. This can create a safety hazard and cause damage to the cylinder components.
Carefully clean the cylinder bore and rod before installing the new seals to prevent any debris from causing damage. Ensure the seals are properly oriented and seated without being twisted or nicked during installation.
Inspect the hydraulic fluid for signs of contamination and check the condition of the cylinder rod for scoring or damage when replacing the arm cylinder seals.