This is an arm cylinder seal kit, designed to replace the worn seals within the hydraulic cylinder responsible for the excavator's arm movement. It is manufactured from high-quality, durable materials to prevent leaks and maintain proper hydraulic pressure, unlike a failed kit where seals become brittle or cracked. Operators will typically observe hydraulic fluid leaking from the arm cylinder rod, and potentially a slow drift or inability of the arm 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.
Visible hydraulic fluid leakage from the arm cylinder rod is the primary symptom of a failed seal kit. If ignored, the leakage will worsen, leading to a loss of hydraulic pressure and potentially the arm drifting down under load. The consequence is reduced digging performance and the risk of uncontrolled cylinder movement.
Carefully clean the cylinder bore and piston rod before installing new seals to prevent contamination. Ensure all seals are oriented correctly according to the manufacturer's instructions to prevent immediate failure.
Inspect the cylinder barrel for scoring or damage, and check the hydraulic fluid for signs of contamination that may have contributed to seal wear.