15140666 plunger pump For Volvo A25F/G and A30F/G articulated dump truck

15140666 plunger pump For Volvo A25F/G and A30F/G articulated dump truck Featured Image
  • 15140666 plunger pump For Volvo A25F/G and A30F/G articulated dump truck

Short Description:

250-8337 variable axial plunger pump is aftermarket replacement for Caterpillar 140M motor grader with C7 engine. It supplies high-pressure hydraulic oil for blade lift, side shift, steering and ripper circuits.

Product Detail

Product Tags

description

15140666 axial variable piston pump serves as core hydraulic power source for Volvo A25F/G, A30F/G articulated dump truck. Driven by the vehicle engine, it converts mechanical power into adjustable high-pressure hydraulic energy to feed body hoist, steering and brake assist hydraulic systems. Built-in load sensing control valve dynamically modifies pump displacement based on real-time working load. When tipping loaded cargo body, it delivers large flow and high pressure; during travelling or light-load hauling, it reduces displacement to save engine power and cut hydraulic heat build-up. Core internal components including plungers, cylinder block, valve plate and slippers are forged from high-strength alloy steel, processed with precision grinding and nitriding hardening treatment. The friction pair maintains stable volumetric efficiency under cyclic impact load of repeated loading and dumping. The cast iron pump housing undergoes stress relief annealing to eliminate casting residual stress, resisting continuous vibration and dust on mine haulage roads.

product parameters

Part No：15140666
Product Type：Variable Displacement Axial Piston Pump
Applicable Equipment：Volvo A25F/G, A30F/G Articulated Dump Truck
Control Mode：Load Sensing Swash Plate Control
Rated Rotation Speed：2200 rpm
Working Medium：ISO VG46 Anti-wear Hydraulic Oil
Working Temperature Range：-25℃ ~ +110℃
Main Material：High-density cast iron housing, high-strength alloy steel core components, FKM fluorine rubber seal
Surface Treatment：Precision grinding, nitriding hardening, stress relief annealing, anti-rust coating
Interchangeability：1:1 OEM original interchangeable, direct installation without modification
Product Condition：Brand new aftermarket part, 100% hydraulic bench tested
Packaging：Independent anti-rust packaging + export wooden case
Storage Environment：Dry indoor storage, moisture-proof, impact-proof, anti-corrosive gas

advantage

- Dual-circuit stable output for hoist and steering simultaneous operation
Balanced flow distribution supports concurrent operation of body tipping and steering without obvious pressure drop, ensuring safe and smooth maneuvering during unloading on uneven mine ground.
- Enhanced anti-fatigue housing for articulated vehicle twisting vibration
The cast housing is reinforced to withstand torsional vibration generated by articulated frame movement. It reduces the risk of housing cracking under repeated twisting stress on rough mine roads.
- Optimized internal friction pair for long-duration continuous hauling
Modified surface treatment of plunger and valve plate improves wear resistance under long-hour continuous mine transport, extending service life under 24-hour shift operation.
- Built-in pressure buffer structure to reduce hydraulic shock during tipping
Internal pressure buffer absorbs impact spikes when the hoist cylinder reaches stroke end, protecting hydraulic valves and cylinder seals from sudden pressure shock.
- Batch cycle bench test simulating mine shift working conditions
Each pump undergoes continuous loading-unloading cycle test, verifying stability under all-day mine shift operation to meet high-intensity hauling requirements.

FAQ 

Q1: Which machine does 15140666 plunger pump fit?
A1: This hydraulic plunger pump is designed for Volvo A25F/G and A30F/G articulated dump truck, supplying hydraulic power for hoist, steering and brake assist. It cannot be directly used on older A-series models. Confirm machine serial number before purchase.

Q2: What hydraulic functions does this pump provide?
A2: It provides pressurized hydraulic oil for cargo body lifting and tipping, vehicle steering and brake assist. It handles bulk ore and earth hauling, unloading on quarry and mine sites.

Q3: What are typical signs of pump wear?
A3: Typical symptoms: slow body tipping speed, insufficient tipping force under full load, stiff steering during unloading, hydraulic shock noise at end of tipping stroke, pump abnormal noise and shaft seal oil leakage.

Q4: What inspections should be done before installing new pump?
A4: Inspect hoist cylinders, steering valve, brake assist valve and filter assemblies. Fully flush hydraulic tank and pipelines to remove metal debris. Replace contaminated hydraulic oil before assembly.

Q5: Why the truck still tips slowly after pump replacement?
A5: The fault may not come from pump. Check relief valve pressure calibration, stuck spool, blocked filter, damaged hoist cylinder seals or trapped air in hydraulic circuit. Air bleeding is mandatory after installation.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.

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our warehouse

Pack and ship

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