This main hydraulic pump is the heart of the excavator's hydraulic system, generating the flow and pressure needed to operate all functions like the boom, stick, and bucket. It is manufactured to meet exacting OEM standards, ensuring robust performance and reliability over a worn or failing pump. Operators may notice slow or weak hydraulic movements, a loss of lifting capacity, or unusual noises from the pump area if this unit is defective.
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 hydraulic pump will first be evident by a significant reduction in the speed and power of all hydraulic functions, making the excavator feel sluggish. If the issue progresses, the hydraulic system may overheat rapidly due to internal leakage within the pump. Continued operation risks complete loss of hydraulic power, rendering the machine inoperable.
Ensure the hydraulic tank is filled with the correct type and amount of hydraulic fluid before starting the engine. Never run the pump dry, as this can cause immediate internal damage.
When replacing the main hydraulic pump, it is crucial to thoroughly flush the hydraulic system and replace the hydraulic filter and oil.