Hydraulic Pump A10VO71DFR1 for Rexroth Excavator 14T 058a5bd3 86c4 4010 9ecb e4bbe32bcb1e.jpg

A10VO71DFR1 Hydraulic Pump for Rexroth 14T Excavator

Made for Nachi, this hydraulic pump assy (PVD-2B-42) supplies the oil flow and pressure the machine hydraulics work with.

Category: Hydraulic Pump Assembly

Description
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PVD-2B-42 Hydraulic Pump Assy is a replacement hydraulic pump assy for Nachi. The main hydraulic pump converts engine power into pressurized oil flow. Supplied by LIONKITS as new original.

PVD-2B-42 Hydraulic Pump Assy Specifications

Product Type: Hydraulic Pump Assy
Part Number: PVD-2B-42
Compatible Brand: Nachi
Condition: New original
Country of Origin: China

Nachi Models Compatible with the PVD-2B-42 Hydraulic Pump Assy

for Nachi

Your model is not listed? Contact LIONKITS via live chat or email with your machine model and nameplate photo, and we will confirm compatibility.

What Does a Hydraulic Pump Do?

The main hydraulic pump converts engine power into pressurized oil flow. That oil moves the boom, arm, bucket, swing and travel functions, so every machine movement depends on it. Because it takes the most punishment, it is usually the first major hydraulic component to wear out.

Signs the Part Needs Replacing

Slow or weak movement on all functions: when everything is slow at once, not just one circuit, the pump is the most likely source.
Whining, knocking or grinding noise: internal wear or cavitation, especially on start-up or when the oil is cold.
Hydraulic oil running hot: internal bypass leakage turns pressure into heat.
Metal particles in the filter or case drain: a failing pump sheds metal and pushes out more case drain flow.
Erratic or spongy movement, foamy oil: air entering the suction line, or aeration, upsets pump flow.

These symptoms overlap with clogged filters, low oil, air in the suction line and worn valves, so check the filters and oil level before replacing the part.

How to Order and Install the PVD-2B-42 Hydraulic Pump Assy

Confirm your machine model, the part number and the pump model on your existing pump before ordering.
Send a photo of the old pump or the nameplate if you are not sure; LIONKITS will confirm fitment for you.
Change the hydraulic oil and the return filters before fitting the new pump; a new pump installed in contaminated oil will fail early.
If the old pump failed internally and shed metal, flush the tank, hoses and oil cooler and inspect the control valve and motors for contamination.
Fill the pump case with clean hydraulic oil and prime the pump as the service manual specifies before the first start.
Check the suction line, strainer and fittings for air leaks, and tighten bolts to the specified torque.
Run the machine at low speed first, then check pressure, noise and leaks.

Frequently Asked Questions

What is the PVD-2B-42 Hydraulic Pump Assy?

The PVD-2B-42 Hydraulic Pump Assy is a replacement hydraulic pump assy for Nachi , supplied as new original under part number PVD-2B-42.

How do I know my hydraulic pump is failing?

Typical signs are slow or weak movement on all functions, whining or knocking noise, hot hydraulic oil, metal particles in the filter or case drain and erratic or spongy movement.