This is a hydraulic cylinder seal kit designed to restore the integrity of the boom cylinder in Volvo excavators. It is manufactured to meet stringent OEM standards, ensuring a tight seal that prevents fluid loss and contamination, unlike worn seals that leak and allow debris ingress. Operators may notice slow or jerky boom movements, external hydraulic fluid leaks around the cylinder rod, or a loss of lifting power when seals begin to fail.
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 seal failure is often a slow drift of the boom when the engine is off or a slight external leak at the cylinder rod. If ignored, the leakage will worsen, leading to reduced hydraulic pressure and sluggish operation, potentially compromising the machine's ability to perform its intended tasks.
Thoroughly clean the cylinder bore and piston rod before installation to prevent damage to the new seals. Ensure all seals are properly oriented before pressing them into place to avoid premature failure.
Inspect the cylinder rod for any scoring or pitting that could compromise the new seals' performance; also, check the hydraulic fluid and filter for signs of contamination.