مضخة هيدروليكية Komatsu 708-1W-00241 لـ حفارة صغيرة Komatsu PC75UU-3

PC75UU‑3 Hydraulic pump for Komatsu Excavator spare parts 708‑1W‑00241 Aftermarket

Product Overview

This aftermarket axial piston hydraulic pump assembly, part number 708‑1W‑00241, serves as the core power unit for Komatsu PC75UU‑3 excavator hydraulic system. It converts engine rotational power into high‑pressure hydraulic energy, supplying power for boom lifting, arm movement, bucket digging, crawler travel and upper‑body slewing actions. Widely deployed in municipal renovation, trench digging, site cleanup and small earth‑moving jobs, this machine often endures frequent load changes and continuous cyclic work. Under long‑term tough site conditions, internal components including cylinder block, piston shoes, valve plate and drive shaft will gradually suffer abrasion. Typical wear‑related failures cover insufficient digging output, sluggish combined movements, continuous hydraulic oil temperature rise, strange humming noise coming from pump housing and shaft end oil leakage. This replacement pump is manufactured strictly referencing original sample standards, capable of direct installation to bring back full hydraulic performance of your Komatsu PC75UU‑3 equipment.

Core Advantages

1. High‑precision internal friction pair design
Critical matching components such as cylinder block, piston shoes and valve plate go through fine grinding and strict heat treatment. It keeps stable fitting clearance during long‑time variable‑load operation, effectively lowers internal leakage, resists cavitation erosion and slows down component wear progress, extending overall pump service life greatly.

2. Reliable pressure and flow stability
Every finished pump is tested on professional hydraulic test bench to verify rated pressure, output flow and variable response performance. Even under frequent switching between light‑load and heavy‑load working status, it can maintain steady power output, avoiding working efficiency drop triggered by pump performance attenuation.

3. Complete interchangeability for rapid on‑site repair
Mounting hole positions, shaft spline size, oil port layout and regulator assembly parameters are kept consistent with original specifications. Maintenance technicians can finish replacement work without complicated adjustment procedures, effectively cutting equipment downtime for repair shops and equipment owners.

4. Anti‑vibration cast housing & reliable sealing structure
Integral high‑density cast housing can withstand vibration and pressure impact generated during daily excavation work, reducing deformation risk. Matched premium shaft seal and sealing accessories suppress high‑pressure oil leakage, prevent hydraulic oil from being polluted by outside impurities and decrease later repeated maintenance workload.

5. Competitive aftermarket maintenance solution
Compared with high‑priced original pump with long procurement cycle, this aftermarket main pump delivers dependable working performance with more favorable cost. It is a practical spare‑part choice for repair workshops, equipment rental fleets and overseas excavator‑parts distributors.

Manufacturing & Quality Control

Our factory focuses on producing replacement hydraulic pumps for Komatsu compact and medium‑sized excavators. We carry out full‑link quality control covering raw material inspection, component machining, heat‑treatment processing, clean assembly and finished‑product bench test. Each pump needs to pass no‑load test and rated‑load simulation inspection before delivery. Products are coated with anti‑rust oil, wrapped by shock‑proof protective materials and packed with export‑qualified carton or wooden case, preventing scratch, collision and oxidation in long‑distance cross‑border transportation. We support large‑volume wholesale, stable batch supply for global clients, and small trial orders are also acceptable.

Frequently Asked Questions

Q1: What failure phenomena indicate the main pump needs inspection or replacement?
A: When your PC75UU‑3 excavator appears weak digging force, slow boom and bucket action, obvious abnormal noise near main pump, fast hydraulic oil heating, or metal particles detected in hydraulic filter, you need to test system pressure and check the main pump assembly.

Q2: Can this hydraulic pump fit other Komatsu excavator models?
A: This pump is specially developed for Komatsu PC75UU‑3. Displacement, spline and oil circuit layout differ among different machine models. Please double‑check part number 708‑1W‑00241 against your old component before placing order to avoid installation mismatch.

Q3: What important notes for installation operation?
A: Fully clean hydraulic oil tank and pipelines, replace brand‑new hydraulic oil and filter elements. Keep assembling environment clean to stop dirt entering pump interior. Complete exhaust work after installation, perform low‑speed no‑load running‑in test before putting machine into formal heavy‑duty construction.

Q4: About product warranty scope?
A: Warranty is valid for defects caused by manufacturing process. Damage resulting from improper installation, contaminated hydraulic oil, cavitation problem and overload operation will not be covered under warranty. Please follow Komatsu official maintenance specifications during equipment overhaul.