This is an arm cylinder seal kit for Volvo excavators, designed to replace worn seals within the arm (or dipper) hydraulic cylinder. It ensures the proper functioning of the arm by preventing hydraulic fluid leaks and maintaining consistent operating pressure. Observable symptoms of seal failure include slow or jerky arm movements, visible fluid leaks around the arm cylinder rod, and a loss of the arm's ability to hold its position under load.
Always verify with serial number before ordering.
Parts Trading Company · Mumbai, Est. 1956 · Same-day dispatch · Ships worldwide · GST invoice included
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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 a failing arm cylinder seal kit is often visible hydraulic fluid weeping or leaking from the cylinder rod. This can progress to sluggish or erratic arm movements, a loss of holding power causing the arm to drift, and potentially reduced breakout force.
Carefully inspect the cylinder rod for any nicks, scratches, or wear that could compromise the new seals; repair or replace the rod if necessary. Always lubricate the seals with clean hydraulic fluid before inserting them into the cylinder.
During arm cylinder seal replacement, it is advisable to inspect the cylinder rod surface for damage and check the condition of the cylinder barrel.