Name: K3V63DT-HNOE Hydraulic Main Pump DH150-7 Excavator Replacement Pump Compatible K3V63DT Series Construction Machinery Parts
Brand: Lanzhou Fudong Guangqi Trading Co., Ltd
SKU: K3V63DT-HNOE
Availability: InStock

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K3V63DT-HNOE Hydraulic Main Pump DH150-7 Excavator Replacement Pump Compatible K3V63DT Series Construction Machinery Parts

K3V63DT hydraulic main pump

DH150-7 excavator replacement pump

K3V63DT series construction machinery parts

Place of Origin:

China

Model Number:

K3V63DT-HNOE

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Product Details

Color:

Red

Highlight:

K3V63DT hydraulic main pump

DH150-7 excavator replacement pump

K3V63DT series construction machinery parts

Payment & Shipping Terms

Minimum Order Quantity

1 Pc

Packaging Details

Carton

Delivery Time

7-15days

Payment Terms

T/T

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+8615294125097

guangqi334@gmail.com

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Product Description

K3V63DT-HNOE Hydraulic Main Pump DH150-7 Excavator Replacement Pump Compatible K3V63DT Series Construction Machinery Parts

Function

The main hydraulic pump serves as the central power component for excavator hydraulic circuits. Powered by the engine, it converts mechanical energy into high-pressure hydraulic energy and delivers pressurized fluid to hydraulic motors to actuate all working movements of the excavator.

Type

Engineering excavators are mostly equipped with axial variable displacement piston pumps. Medium and large machines adopt integrated twin main pumps together with a rear pilot gear pump unit.
Two independent high-pressure oil supply lines feed the main control valve to realize compound movements, with nominal working pressure 28~35MPa.
The tail-mounted low-pressure pilot pump operates at 3~4MPa with low flow output, supplying pilot pressure oil for control levers and main valve spools.

Internal Parts

Piston assemblies installed inside cylinder block and pump casing rotate along with main shaft to finish oil suction and pressure building process.
Swash plate inclination angle adjustment modifies piston stroke, which changes pump displacement value.
External servo regulator drives swash plate responding to hydraulic feedback. Larger tilt angle increases flow rate and operation speed; smaller tilt angle reduces fuel consumption and prevents engine stalling issue.
The valve plate divides low-pressure inlet and high-pressure outlet passages to complete hydraulic oil distribution.

Three Control Modes

Constant power control reduces pump displacement automatically when load rises, protecting engine and improving overall power utilization rate.
The LS load-sensing system supplies flow on demand and maintains low displacement at idle to achieve fuel-saving effect.
HP pressure limiting function decreases pump displacement when pressure hits peak value, protecting hydraulic pipelines and cylinders from rupture damage.

Common Failures

Worn pistons, damaged valve plates or blocked regulators produce internal leakage, leading to slow operation and power shortage.
When regulator is locked at maximum displacement, engine will overload, discharge black smoke and stall under heavy working loads.
Too much internal leakage converts pressure loss into heat, causing hydraulic oil temperature to rise abnormally.
Air intake, insufficient oil level or damaged bearings and pistons will trigger abnormal operating noise.

Maintenance

Replace hydraulic oil and filters regularly to avoid abrasion on precision internal parts. Guarantee tight sealing of suction pipes to prevent air suction and machine vibration. Keep hydraulic fluid at specified level to ensure stable pump performance.

Company Profile

Tags：

K3V63DT-HNOE Hydraulic Main Pump DH150-7 Excavator Replacement Pump Compatible K3V63DT Series Construction Machinery Parts

K3V63DT hydraulic main pump

DH150-7 excavator replacement pump

K3V63DT series construction machinery parts

K3V63DT hydraulic main pump

DH150-7 excavator replacement pump

K3V63DT series construction machinery parts

Excavator Parts A10VO45DFLR 53R-VUC62N00 -S3042 R902502504 Hydraulic Piston Pumps OEM Brand Guangdong Origin for XE26 XE35

Hydraulic Pump PVD-1B-28P-8AG4 4331671 4358274 4399045 Hydraulic Piston Pump for EX30 Cx26c Excavator Main Pump

PVD-0B-18B-6AG3-4950A 20400006 Hydraulic Pump for Excavator Small Piston Hydraulic Pump Construction Machinery Parts

PVD-0B-21P-6G3 Hydraulic Pump RB411-61113 RB411-61110 for Kubota U20-5 Mini Excavator Hydraulic Piston Pump

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Internal Parts

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Common Failures

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