Hydraulic Pump Assembly 705 52 30011 Fits for Komatsu Excavator PC650 1 35530ccb 200e 420f 8573 e62e8d3f6f26.jpg

705-52-30011 Hydraulic Pump Assembly for Komatsu PC650-1 Excavator

Made for Volvo A25G, A30G, A35G and A40G, this hydraulic pump (VOE17487751) supplies the oil flow and pressure the machine hydraulics work with. It also appears under part number 17487751.

Category: Hydraulic Pump Assembly

Description
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VOE17487751 Hydraulic Pump is a replacement hydraulic pump for Volvo, including A25G, A30G, A35G, A40G, A45G. The main hydraulic pump converts engine power into pressurized oil flow. Supplied by LIONKITS.

VOE17487751 Hydraulic Pump Specifications

Product Type: Hydraulic Pump
Part Number: VOE17487751, 17487751
Compatible Brand: Volvo
Country of Origin: China

Volvo Models Compatible with the VOE17487751 Hydraulic Pump

Volvo Articulated Haulers: A25G, A30G, A35G, A40G, A45G, A45GFS
A35C, A25C 4×4, A25C, A20C, A30C, A40E Fit for Volvo Asphalt compactors: PT125C, DD140B, DD24 Fit for Volvo Loaders: BL71, L50H, 646 Fit for Volvo Excavator: EW50 VV, EW50, EC220D N, EC135B LC, EC170D L
EC160E NL, EC180D L, EC210D LR, EC300E LR, EC350D L Fit for Volvo Graders: G740 Fit for Volvo Screeds: Ultimat 20

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 VOE17487751 Hydraulic Pump

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 VOE17487751 Hydraulic Pump?

The VOE17487751 Hydraulic Pump is a replacement hydraulic pump for Volvo under part numbers VOE17487751, 17487751.

Which Volvo models does the VOE17487751 Hydraulic Pump fit?

It is listed for A25G, A30G, A35G, A40G, A45G, A45GFS and other models in the compatibility list above. 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.