This main pump seal kit is essential for maintaining the internal integrity of the excavator's main hydraulic pump, preventing leaks and ensuring optimal pressure. It is manufactured with durable sealing materials designed to withstand high pressures and temperatures, unlike worn seals that can lead to internal bypassing and reduced pump efficiency. Operators may notice a gradual loss of hydraulic power, increased pump noise, or external fluid leaks from the pump housing if this seal kit has failed.
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 primary indicator of a failing main pump seal kit is a gradual decrease in the overall hydraulic system performance, with functions becoming slower and less powerful. If left unaddressed, internal leakage will worsen, leading to increased hydraulic fluid temperature and potential damage to other hydraulic components. This can result in significant operational downtime and costly repairs.
Carefully inspect the pump shaft and housing for any burrs or imperfections that could damage the new seals during installation. Ensure all seals are lubricated with clean hydraulic fluid before insertion.
Clean the inside of the hydraulic pump housing thoroughly and inspect the pump shaft for any signs of wear before installing the new seal kit.