This is a Control Valve Seal Kit designed for Volvo excavators, ensuring the integrity of the hydraulic control valve system. It is manufactured to meet stringent quality standards, providing a reliable seal that prevents internal and external leaks, unlike worn seals which allow fluid bypass and contamination. Operators may notice slow or jerky hydraulic functions, external oil leaks around the valve body, or a loss of system pressure 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.
The first sign of failure is often a slight stiffness or sluggishness in hydraulic movements controlled by the valve. If ignored, leaks will worsen, leading to a noticeable drop in hydraulic pressure and performance, potentially causing the machine to struggle with heavy loads.
Ensure all sealing surfaces on the valve body and spool are meticulously cleaned and free of debris before installation. Avoid using sharp tools that could nick or scratch the new seals during insertion.
Inspect the control valve spool and bore for wear or damage, and clean hydraulic fluid passages.