Name: K3V140DT-9ND9 Hydraulic Pump Excavator Construction Machinery Parts XE335C Piston Pump Parts
Brand: Lanzhou Fudong Guangqi Trading Co., Ltd
SKU: K3V140DT-9ND9
Availability: InStock

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K3V140DT-9ND9 Hydraulic Pump Excavator Construction Machinery Parts XE335C Piston Pump Parts

K3V140DT hydraulic pump excavator parts

XE335C piston pump construction machinery

hydraulic main pump with warranty

Place of Origin:

China

Model Number:

K3V140DT-9ND9

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Product Details

Color:

Grey

Highlight:

K3V140DT hydraulic pump excavator parts

XE335C piston pump construction machinery

hydraulic main pump with warranty

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

K3V140DT-9ND9 Hydraulic Pump Excavator Construction Machinery Parts XE335C Piston Pump Parts

Function

As the prime power source of excavator hydraulic circuits, main hydraulic pump is driven by prime engine, converting rotational mechanical energy into high-pressure hydraulic power. It conveys pressurized fluid to boom, stick, bucket, travel and slew drive motors to implement all excavation movements.

Type

Axial variable piston pump is the mainstream configuration for engineering diggers; medium & large tonnage machines adopt integrated twin main pump with built-in rear pilot gear pump.
Dual main pump operates at 28~35MPa with two independent oil outlets feeding main control valve separately for compound action. Rear pilot gear pump runs at 3~4MPa low pressure to supply pilot control oil for operating levers and valve spools.

Internal Construction

Pump housing and cylinder block assemble multiple piston assemblies, completing oil intake and pressurization synchronously with main shaft rotation. Swash plate tilt angle modifies piston stroke and pump displacement. Side-mounted servo regulator adjusts swash angle by hydraulic feedback: larger inclination boosts displacement & flow for quicker operation; smaller angle cuts delivery volume to save fuel and prevent engine shutdown under heavy load. Valve plate isolates low-pressure inlet chamber and high-pressure outlet for oil distribution.

Three Control Modules

Constant power regulation cuts pump displacement along with load increase to match engine output and avoid stall. LS load sensing outputs flow matching real system demand and maintains minimal displacement in idle for energy conservation. Pressure cutoff lowers displacement to bottom limit once pressure hits rated peak to guard pipelines and cylinders against bursting.

Common Defects

Abraded pistons or valve plate causing internal leakage or seized regulator leads to sluggish and underpowered machine movement. Regulator locked at full displacement triggers engine overload, excessive black smoke and choking. Serious inner leakage converts power loss into thermal energy and elevates hydraulic fluid temperature. Air suction, insufficient oil or damaged internal bearings and pistons result in abnormal knocking noise.

Maintenance

Replace hydraulic fluid and filter elements on scheduled cycle to avoid particle abrasion on precision components; keep suction pipeline fully sealed to prohibit air ingress and machine judder; sustain standard oil level to prevent irreversible pump damage.

Machinery Test Report	Provided	Warranty	3 Months
Video outgoing-inspection	Provided	Brand Name	OEM
Place of Origin	China	Product Name	Hydraulic Pump
Model	K3V140DT-9ND9	MOQ	1 Piece
Quality	High-Quality	Delivery time	7-15 Days
Standard or Nonstandard	Standard	Application	Excavator Machinery
Size	Standard Size	Color	Grey

K3V140DT-9ND9 Hydraulic Pump Excavator Construction Machinery Parts XE335C Piston Pump Parts 0

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Tags：

K3V140DT-9ND9 Hydraulic Pump Excavator Construction Machinery Parts XE335C Piston Pump Parts

K3V140DT hydraulic pump excavator parts

XE335C piston pump construction machinery

hydraulic main pump with warranty

K3V140DT hydraulic pump excavator parts

XE335C piston pump construction machinery

hydraulic main pump with warranty

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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Three Control Modules

Common Defects

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