This is a Hydraulic Main Pump, the powerhouse of the excavator's hydraulic system, generating the high-pressure flow needed for all functions. It converts mechanical energy from the engine into hydraulic power, enabling precise and forceful operation of the boom, arm, bucket, and travel systems. A worn pump may result in sluggish hydraulic response, loss of power, or erratic movements.
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 indication of a problem is often a noticeable decrease in the speed and power of hydraulic functions. If left unaddressed, the excavator may struggle to lift loads or perform tasks, significantly impacting productivity. Complete pump failure will render the machine inoperable.
Ensure all hydraulic lines are thoroughly flushed before connecting them to the new pump to remove any residual contaminants. Never run the pump dry; prime it with clean hydraulic oil before initial startup.
When replacing the main hydraulic pump, it is critical to replace the hydraulic system filters and inspect the hydraulic fluid for signs of contamination.