مضخة هيدروليكية Nachi PVD-0B-20P-5AG-5080A6 20/925829 لـ حفارة صغيرة JCB 8020

1.Basic Info
Product: Original Nachi Main Hydraulic Pump
OEM Numbers: PVD‑0B‑20P‑5AG‑5080A6, 20/925829
Compatible Models: JCB 8020 Mini Excavator
Application: Mini Excavator Hydraulic System Parts
Condition: Original New
2.Core Advantages
Genuine Nachi manufactured component, fully matches factory performance parameters
Compact pump structure fits tight installation space of 2‑ton class mini excavator
Stable displacement output guarantees smooth action of boom, arm and bucket
Pre‑calibrated unit, direct replacement without further parameter adjustment
3.Technical Data
Pump Type: Variable displacement axial piston pump
Function: Main power source for implement, travel and auxiliary hydraulic circuits
Manufacture: Nachi OEM
Working Medium: Hydraulic oil ISO VG46
Rated Working Pressure: 24.5 MPa
Max Relief Pressure: 27.0 MPa
Control Mode: Hydraulic displacement control
Maximum Input Speed: 3200 rpm
Mounting: Original bolt layout and pilot port position for JCB 8020 installation
Port Configuration: Standard suction and pressure port with original thread specification
Bench Test Items: Displacement verification, pressure holding test, noise detection, internal leakage inspection
Weight: 26kg approx
4.FAQ
Q1: Does this pump come with solenoid valve and control parts?
A1: Matched original built‑in control assembly is included, extra external parts are not supplied.
Q2: What preventive maintenance should follow after pump installation?
A2: Flush whole hydraulic circuit, change filter and fill clean ISO VG46 hydraulic oil before commissioning.
Q3: Why mini excavator main pump appears insufficient power?
A3: Possible causes include contaminated hydraulic oil, worn pump internal parts or incorrect relief pressure setting.