Name: K3V140DTP-9T1L Hydraulic Main Pump for Hyundai SY285 Excavator Kawasaki Type Piston Pump 31N8-10010 31N8-10011
Brand: Lanzhou Fudong Guangqi Trading Co., Ltd
SKU: K3V140DTP-9T1L
Availability: InStock

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K3V140DTP-9T1L Hydraulic Main Pump for Hyundai SY285 Excavator Kawasaki Type Piston Pump 31N8-10010 31N8-10011

Hyundai SY285 hydraulic main pump

Kawasaki type piston pump

Hydraulic pump with warranty

Place of Origin:

China

Model Number:

K3V140DTP-9T1L

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Product Details

Color:

Grey

Highlight:

Hyundai SY285 hydraulic main pump

Kawasaki type piston pump

Hydraulic 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

K3V140DTP-9T1L Hydraulic Main Pump for Hyundai SY285 Excavator Kawasaki Type Piston Pump 31N8-10010 31N8-10011

Function

The hydraulic main pump is an essential power component of excavator hydraulic systems. Driven by the prime engine, it converts mechanical energy into high-pressure hydraulic energy, and transports pressurized medium to hydraulic motors to drive boom, arm, bucket, traveling and slewing movements.

Type

Axial variable displacement piston pumps are the mainstream for construction excavators. Medium and large excavators use integrated double main pumps equipped with a rear pilot gear pump.
The twin high-pressure pumps adopt individual oil supply passages, feeding oil to different ports of the main control valve for compound actions, with working pressure 28~35MPa.
The low-pressure pilot pump installed at the pump rear works at 3~4MPa with low flow, supplying pilot control oil for operating handles and main valve spools.

Internal Parts

The housing and cylinder block hold several piston assemblies. They rotate together with the main shaft to complete oil suction and pressure generation.
Adjusting the swash plate inclination can change piston stroke and pump volumetric displacement.
The external servo regulator drives the swash plate according to hydraulic feedback. Larger angle increases flow rate and operation speed; smaller angle reduces fuel consumption and prevents engine stall.
The valve plate separates low-pressure inlet and high-pressure outlet to realize fluid distribution.

Three Control Modes

Constant power regulation reduces pump displacement automatically as load increases, protecting the engine and achieving maximum power utilization.
The LS load sensing system delivers flow on demand and keeps low displacement at idle to cut fuel cost.
The HP pressure limiting function lowers pump displacement at peak system pressure to protect hydraulic pipelines and cylinders from rupture.

Common Failures

Worn pistons, damaged valve plates or clogged regulators cause internal leakage, which results in slow operation and power shortage.
A locked regulator at maximum displacement will lead to engine overload, black exhaust and stall under heavy working conditions.
Severe internal leakage produces extra heat and triggers abnormal hydraulic oil temperature rise. Air entrainment, low oil level or defective parts will cause abnormal noise.

Maintenance

Replace hydraulic oil and filters on a regular basis to prevent abrasive damage to precision components. Ensure suction pipelines are tightly sealed to avoid air intake and equipment vibration. Keep hydraulic fluid at the standard level to prevent pump failure.

Machinery Test Report	Provided	Warranty	3 Months
Video outgoing-inspection	Provided	Brand Name	OEM
Place of Origin	China	Product Name	Hydraulic Pump
Model	K3V140DTP-9T1L	MOQ	1 Piece
Quality	High-Quality	Delivery time	7-15 Days
Standard or Nonstandard	Standard	Application	Excavator Machinery
Size	Standard Size	Color	Grey

K3V140DTP-9T1L Hydraulic Main Pump for Hyundai SY285 Excavator Kawasaki Type Piston Pump 31N8-10010 31N8-10011 0 Comapny peofile

Tags：

K3V140DTP-9T1L Hydraulic Main Pump for Hyundai SY285 Excavator Kawasaki Type Piston Pump 31N8-10010 31N8-10011

Hyundai SY285 hydraulic main pump

Kawasaki type piston pump

Hydraulic pump with warranty

Hyundai SY285 hydraulic main pump

Kawasaki type piston pump

Hydraulic pump with warranty

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