This is a hydraulic gear pump, a critical component responsible for generating the hydraulic flow and pressure required to operate various functions on Volvo excavators. Manufactured to precise tolerances and high-quality standards, it ensures efficient fluid transfer and consistent performance, unlike a worn pump that may produce insufficient flow or excessive noise. Operators may notice slow or weak hydraulic functions, overheating of the hydraulic system, or unusual noises emanating from the pump area when it is failing.
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 noticeable symptom of a failing hydraulic gear pump is often a reduction in the speed and power of hydraulic functions, such as boom, stick, or bucket movements. If ignored, the pump may continue to degrade, leading to increased hydraulic system temperature and potentially causing damage to other hydraulic components. Ultimately, a severely worn pump can lead to a complete loss of hydraulic power, rendering the excavator inoperable.
Thoroughly flush the hydraulic system before installing the new pump to remove any contaminants that could damage the new unit. Ensure the pump shaft is properly aligned with the drive coupling to prevent premature wear or failure.
When replacing the hydraulic gear pump, it is crucial to inspect the hydraulic fluid for contamination and replace the main hydraulic filter.