Hydraulic Pump 47133946 for New holland Tractor T7030 T7040 T7050 TM130 TM140 TM155 313912f4 b144 44b4 af15 53ace3a69f2d.jpg

47133946 Hydraulic Pump for New holland T7030 T7040 T7050 TM130 Tractor

Part 705-52-30010 is a hydraulic pump assembly covering Komatsu PC650-1 excavators. In service it feeds pressurized oil to the cylinders and motors so the machine can dig, lift and travel.

Category: Hydraulic Pump Assembly

Description
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705-52-30010 Hydraulic Pump Assembly is a replacement hydraulic pump assembly for Komatsu excavators, including PC650-1. The main hydraulic pump converts engine power into pressurized oil flow. Supplied by LIONKITS.

705-52-30010 Hydraulic Pump Assembly Specifications

Product Type: Hydraulic Pump Assembly
Part Number: 705-52-30010, 7055230010
Compatible Brand: Komatsu
Machine Type: Excavator
Country of Origin: China

Komatsu Models Compatible with the 705-52-30010 Hydraulic Pump Assembly

Komatsu Excavator: PC650-1

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 705-52-30010 Hydraulic Pump Assembly

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 705-52-30010 Hydraulic Pump Assembly?

The 705-52-30010 Hydraulic Pump Assembly is a replacement hydraulic pump assembly for Komatsu excavators under part numbers 705-52-30010, 7055230010.

Which Komatsu models does the 705-52-30010 Hydraulic Pump Assembly fit?

It is listed for PC650-1. If you are unsure, send your machine nameplate to LIONKITS for confirmation.

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.