This 2nd boom cylinder seal kit is essential for maintaining the integrity of the hydraulic system in Volvo excavators, preventing fluid leaks and ensuring proper cylinder function. It contains high-quality seals and O-rings manufactured to meet OEM specifications, offering superior durability and sealing performance compared to worn or damaged seals that allow fluid bypass. Operators may observe slow or erratic boom movements, external hydraulic fluid leaks around the cylinder, or a loss of lifting capacity when this seal kit is failing.
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.
The first sign of a failing 2nd boom cylinder seal kit is often visible hydraulic fluid leakage around the cylinder rod or casing. This can lead to a gradual loss of hydraulic pressure, resulting in slower or weaker boom movements. If left unaddressed, significant leakage can deplete hydraulic fluid levels, potentially causing pump damage and complete loss of boom control.
Thoroughly clean the cylinder bore and rod, ensuring no dirt or debris remains that could damage the new seals. Carefully lubricate all seals with clean hydraulic fluid before installation to prevent tearing.
Inspect the cylinder rod for scoring or damage and clean the hydraulic reservoir and filter when replacing the cylinder seal kit.