This main valve seal kit is crucial for maintaining the hydraulic system's integrity by preventing internal and external leaks within the main control valve. Manufactured to meet strict OEM quality standards, these seals provide superior durability and resistance to hydraulic fluid and pressure compared to worn or degraded seals. Operators may notice a loss of hydraulic system responsiveness, jerky movements, or external leaks from the control valve housing 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.
A failing main valve seal kit often first manifests as a slight decrease in hydraulic system precision or a minor external leak from the control valve. If left unaddressed, internal leaks will worsen, leading to sluggish or jerky operation of hydraulic functions and increased external fluid loss. This can compromise the machine's ability to perform tasks safely and efficiently.
Thoroughly clean the valve body and all internal components before installing the new seals to prevent contamination. Be extremely careful not to damage the sealing surfaces or the new seals during installation.
When replacing the main valve seal kit, inspect the valve spools for scoring and check the hydraulic fluid for contamination.