Nachi Bomba de pistón principal VIO10-2A PE10V00001F1 bomba hidráulica para Kobelco SK13SR SK15SR excavadora

1. Product Identification
Component: Main Hydraulic Variable Displacement Axial Piston Pump Assembly

Manufacturer / Model Architecture: Nachi PVD / PE Series Platform

Kobelco OEM Part Numbers: PE10V00001F1, PU10V00002F1

Machine Compatibility:

Kobelco SK13SR Mini Excavator

Kobelco SK15SR Mini Excavator

Condition: Genuine Original New / Premium OEM Specification Equivalent

2. Technical Specifications
Pump Type: Variable Displacement Axial Piston Pump with Auxiliary Gear Pump Section

Flow & Pressure Control: Factory-engineered displacement thresholds and pressure curves calibrated specifically for Kobelco 1.3 to 1.5-ton mini excavator auxiliary and main implement loops.

Drive Interface: Heavy-duty input drive shaft engineered to couple directly with the engine flywheel dampener.

Integrated Control Network: Features integrated regulators to balance hydraulic output and prevent engine lugging or stalling during combined multi-function operations.

3. Critical Installation Requirements
Hydraulic Pump Housing Priming (Mandatory)
Before starting the engine, manually pre-fill the main pump casing with clean, fresh hydraulic fluid through its highest case drain port. Running an axial piston pump dry—even for a few seconds—will score the valve plate and piston slippers, causing immediate total pressure loss.

Air Bleeding & Initial Startup Procedure
After installation, loosen the air bleed port on top of the pump housing. Crank the engine with the fuel supply disabled until clear, bubble-free oil flows from the port, then retighten. Allow the machine to idle under no load for 10 to 15 minutes to purge any trapped air from the hydraulic system.

Fluid & System Decontamination
If replacing a pump that suffered internal mechanical breakdown, completely drain and clean the main hydraulic oil reservoir, flush all circuit lines, and clean the oil cooler. Replace all return and suction filter elements before starting the engine.

Pilot & Main Relief Pressure Inspection
Verify system pressure relief valve settings upon startup. Incorrect pressure settings can lead to sluggish hydraulic response, circuit overheating, or engine stalling under heavy digging loads.

4. Frequently Asked Questions (FAQ)
Q: Are part numbers PE10V00001F1 and PU10V00002F1 interchangeable for the Kobelco SK13SR and SK15SR?
A: Yes. These part numbers represent standard Kobelco engineering revisions and supersessions across the SK13SR and SK15SR mini excavator series. They share matching physical mounting dimensions, input shaft splines, and hydraulic port threads.

Q: My Kobelco SK15SR bogs down or stalls the engine when lifting heavy loads. Is the main hydraulic pump at fault?
A: Engine stalling under load typically indicates that the pump regulators are failing to destroke properly when pressure spikes, or that internal wear has degraded hydraulic control balance. Installing a replacement pump assembly restores proper engine-to-hydraulic power balance.

Q: Does the unit come complete with the auxiliary gear pump section attached?
A: Yes. The unit comes fully assembled as a single integrated pump assembly, including the main axial piston pump section, factory-adjusted regulator blocks, and the auxiliary gear pump section.

5. Shipping & Logistics
Packaging: Treated with rust-inhibiting anti-corrosion storage oil, sealed with heavy-duty port plugs, and packed inside an export-safe protective crate or box.

Transit Time: Global express air freight via DHL/FedEx/UPS typically delivers within 3 to 7 business days directly to your workshop or job site.