This is a main hydraulic pump, essential for delivering high-pressure hydraulic fluid to operate the primary functions of the excavator's work equipment. It is built to rigorous standards, offering superior durability and consistent performance over time, unlike worn pumps that suffer from reduced output and internal leakage. Operators may experience slow or weak boom, stick, and bucket movements, or a complete loss of hydraulic power when this pump fails.
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 manifest as a noticeable sluggishness or lack of power in the excavator's primary functions. If left unaddressed, this will progress to intermittent operation, increased hydraulic fluid temperature, and potential cavitation noises. Continued use risks severe damage to other hydraulic components from debris and fluid breakdown.
Always prime the new hydraulic pump with clean hydraulic oil before installation to prevent dry running and internal damage. Ensure all hydraulic lines are properly connected and free of kinks to avoid restricting flow.
Replace the main hydraulic filter and inspect the hydraulic fluid for metal particles, which could indicate internal pump wear.