This is a hydraulic cylinder seal kit specifically designed for the boom cylinder of Volvo EW series excavators. It is manufactured to meet stringent OEM material and dimensional standards, ensuring a reliable seal that prevents internal fluid loss and external contamination, unlike a worn or damaged seal. Operators may notice a loss of boom control, slow boom operation, or visible fluid leaks around the cylinder rod when this seal kit fails.
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.
Initial signs of a failing boom cylinder seal include a slow, unintended lowering of the boom when retracted. If left unaddressed, the boom may drift more rapidly, and hydraulic system efficiency will decrease, potentially leading to overheating. Prolonged operation with a faulty seal risks damage to the cylinder bore and hydraulic pump.
Thoroughly clean the cylinder bore and rod before installing the new seals to prevent any debris from causing damage. Ensure the seals are seated correctly and not twisted, which can lead to immediate leakage.
Inspect the boom cylinder rod for any signs of wear or damage, and check the hydraulic fluid for contamination.