This is a seal kit specifically designed for the pilot valve in Volvo excavators, providing essential seals to prevent hydraulic fluid leaks and maintain proper valve operation. Manufactured to high standards, these seals offer superior resistance to wear and hydraulic fluid degradation compared to worn or brittle original seals. Operators may notice external hydraulic fluid leaks around the pilot valve, or a spongy/unresponsive feel in the hydraulic controls when these 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 failing pilot valve seals is often a small external hydraulic fluid leak around the valve body or control levers. If left unaddressed, these leaks can worsen, leading to a noticeable drop in hydraulic pressure or a 'soft' feeling in the controls, impacting operational precision. Continued leakage can lead to low hydraulic fluid levels, potentially damaging the hydraulic pump.
Carefully clean the valve spool and bore before installing the new seals to prevent damage. Ensure all seals are oriented correctly according to the kit's instructions to prevent immediate leakage.
Inspect the pilot valve spool for scoring or wear, and clean the hydraulic fluid reservoir when replacing pilot valve seals.