This boom cylinder seal kit is designed to restore the sealing capabilities of the boom cylinder on Volvo EW140B excavators. It contains all necessary seals and O-rings to prevent hydraulic fluid loss and contamination, ensuring optimal cylinder performance. Observable signs of wear include external oil leaks from the cylinder, sluggish or erratic boom operation, and a reduction in the machine's lifting capacity.
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.
Visible hydraulic fluid leaks around the boom cylinder rod are the primary indicator of a worn seal kit. If left unaddressed, these leaks will increase, resulting in reduced hydraulic system efficiency and potentially slow or unresponsive boom movements. Prolonged operation with leaking seals can lead to contamination of the hydraulic system and damage to the cylinder components.
Carefully inspect the cylinder rod for any nicks or scratches before installing new seals, as these can compromise the seal's effectiveness. Ensure that all seals are installed in the correct orientation to prevent immediate failure.
When replacing the boom cylinder seals, it is advisable to also inspect the hydraulic fluid for signs of contamination and check the condition of the cylinder barrel.