This dipper arm cylinder seal repair kit contains all necessary seals and O-rings to rebuild a leaking cylinder within the excavator's boom and dipper arm hydraulic system. Manufactured to precise OEM standards, these seals provide superior resistance to wear, heat, and hydraulic fluid degradation compared to worn or damaged original seals. Operators will typically notice hydraulic fluid leaks around the dipper arm cylinder rod, or a loss of holding pressure causing the arm to drift when the cylinder is failing.
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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 sign of a failing dipper arm cylinder seal is visible hydraulic fluid leakage from the cylinder rod seal or around the cylinder body. If ignored, the leakage will worsen, leading to a loss of hydraulic pressure and the cylinder's inability to hold its position, causing the arm to drift. This can compromise digging precision and create a safety hazard.
Thoroughly clean the cylinder bore and rod before installing new seals to prevent any debris from causing damage or premature wear. Be meticulous when installing the seals, ensuring they are seated correctly and not rolled or nicked by sharp edges.
Inspect the cylinder rod for scoring or damage, and check the hydraulic fluid for contamination before reassembling the cylinder with new seals.