This pilot valve seal kit is designed to maintain the proper sealing and function of the pilot hydraulic control valve in Volvo EC360B excavators. It contains all necessary seals to prevent internal and external leaks, ensuring precise control over the main hydraulic system. Operators may experience a loss of sensitivity or responsiveness in the pilot controls, or find that certain functions are difficult to modulate accurately when these seals begin to degrade.
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.
Early signs of failing pilot valve seals include a slight sponginess or lack of precision in the joystick controls, or a minor drift in functions when the controls are not actively held. If left unaddressed, the seals can degrade further, leading to significant loss of control sensitivity, difficulty in holding precise positions, and potentially unintended movements. This can compromise the operator's ability to perform delicate tasks safely and efficiently, increasing the risk of minor contact damage.
Ensure the pilot hydraulic system is completely depressurized before disassembling the pilot valve to avoid sudden fluid release. Carefully clean all internal pilot valve components and passages before installing the new seals.
Inspect the pilot hydraulic fluid for contamination and check the pilot hydraulic filter for debris; consider replacing the pilot hydraulic fluid if it appears degraded.