Description
708-1W-00893 Hydraulic Pump Assembly by Tatan Overview
The 708-1W-00893 Hydraulic Pump assembly manufactured by Tatan is a heavy-duty variable displacement axial piston unit belonging to our Hydraulic Pump Assembly classification. Engineered specifically for Komatsu WA470-6, WA470-6A, and WA480-6 24-ton mining wheel loaders, replacing your worn hydraulic pump with a Tatan complete assembly eliminates engine stalling under pile penetration, restores snappy boom lift speeds under 4.5 m³ rock loads, and cures internal pressure bypass across demanding quarry, cement plant, and bulk-handling operations.
Driven directly by the 204 kW SAA6D125E-5 diesel engine and routing high-pressure fluid through the WA470-6 main control valve, every factory-calibrated 708-1W-00893 Hydraulic Pump incorporates precision micro-lapped bimetal valve plates, heavy-duty 708-1W cast housings, PC/LS load-sensing regulator blocks, and an integrated pressure cut-off control, ensuring 100% direct bolt-on installation with flywheel housings and chassis hydraulic lines.
Key Attributes & Technical Parameters for 708-1W-00893 Hydraulic Pump
| Product Category | Hydraulic Pump Assembly | Warranty | 1 Year / 12 Months |
| Specific Valve Model | Komatsu 708-1W High-Flow Mining Axial Piston Pump | Brand Name | Tatan |
| Compatible Equipment | Komatsu WA470-6 | WA470-6A | WA480-6 | OEM Part Number | 708-1W-00893 / 708-1W-00892 |
| Matched Engine Series | Komatsu SAA6D125E-5 Diesel (204 kW / 273 HP) | Place of Origin | Guangdong, China |
| Max Relief Pressure | 31.4 – 34.3 MPa (320 – 350 bar) | Rated Pump Flow | Approx. 320 L/min @ 2000 RPM |
| Spool Precision Spec | Micro-Lapped < 0.003 mm Clearance | Quality Status | 100% Brand New Assembly with Regulators |
| Machinery Test Report | Provided (100% Bench Tested) | Video Outgoing-Inspection | Provided Before Shipping |
| Hydraulic Fluid Spec | ISO VG 46 / VG 68 Anti-Wear Oil | Packaging | Export Wooden Box Packaging |
Supported Construction Machinery Brands & Global Coverage
In addition to Komatsu, Tatan manufactures and distributes replacement main hydraulic pumps and rotating components for major equipment builders:
24-Ton Wheel Loader Hydraulic Piston Pump & Implement Flow Standards
Delivering rapid hydraulic response during constant 4.5 m³ bucket crowding and dumping requires specialized pump durability. When repowering with the 708-1W-00893 Hydraulic Pump, Tatan supplies heavy-duty complete piston pumps, reinforced nine-hole slipper retainer plates, bimetal valve plates, and pre-calibrated PC/LS regulator blocks across global earthmoving operations:
⚙️ Stall Torque Cut-Off
Pre-calibrated PC regulator spools automatically destroke pump displacement during rock pile crowding, preventing engine stall.
🔄 Anti-Fatigue Slipper Retainers
Heavy-gauge alloy retainer plates resist hydraulic shock from rapid 4.5 m³ bucket shock loading, preventing slipper shoe pull-out.
⚡ High-Lead Bimetal Valve Plates
Specialized bronze-alloy diffusion bonded to steel backings prevents face smearing and eliminates casing overheating under 320 L/min flow.
Application Scenarios & Buyer Value
When upgrading or replacing your wheel loader hydraulic heart with our 708-1W-00893 Hydraulic Pump, buyers achieve maximum operational uptime and flow control:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Komatsu WA470-6 Pump Replacement | 1:1 direct bolt-on installation eliminates engine stalling and restores instantaneous boom raise and bucket dump cycle speeds under 4.5 m³ loads. |
| Hydraulic Overhaul Workshops | Avoids the complex labor of internal lapping; saves mechanic hours with pre-adjusted PC/LS regulator valves. |
| Quarry & Aggregate Batching Plants | Heavy-duty bimetal cylinder groups withstand continuous 34.3 MPa relief pressures during harsh blasted rock scooping and truck loading. |
| Heavy Equipment Parts Stockists | Fast-moving, high-demand 24-ton loader hydraulic pump inventory ready for immediate shipment to minimize customer downtime. |
708-1W-00893 Hydraulic Pump OEM Diagnostic & Troubleshooting Guide
Use this OEM manual hydraulic diagnostic guide to troubleshoot implement pump symptoms on your Komatsu WA470-6 wheel loader:
| Hydraulic Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Sluggish boom raise & weak breakout when crowding rock piles | Internal bimetal valve plate micro-scoring or cylinder barrel face wear allowing high-pressure fluid bypass to case drain, dropping pressure below 25.0 MPa. | Replace with Tatan 708-1W-00893 complete pump assembly to restore full 34.3 MPa implement breakout pressure. |
| 2. Engine stalls heavily (憋车) during full torque converter stall | PC cut-off regulator spool jammed by varnished oil or spring fatigue, failing to destroke pump swashplate under 204 kW peak load. | Clean PC regulator spool, recalibrate cut-off spring tension, or install Tatan pre-calibrated 708-1W unit. |
| 3. Bronze glitter & brass shavings in return filter element | Piston shoe slipper retaining plate failure or bronze valve plate scoring under continuous 4.5 m³ high-cycle loading cycles. | Stop operation immediately; flush hydraulic tank and lines, install Tatan new 708-1W-00893 pump and new return filter. |
| 4. Screeching whining noise and high case-drain heat (> 85°C) | Cradle swashplate support bearings worn or suction hose liner delamination starving rotary barrel suction ports under 320 L/min flow. | Inspect suction line O-rings, replace hydraulic fluid with clean ISO VG 46, and bolt on new balanced main pump. |
Transport Packaging & Certified Manufacturing Standards
Precision hydraulic piston pumps require zero-vibration transit and absolute cleanliness. Every Tatan 708-1W-00893 Hydraulic Pump unit is vacuum-sealed and packaged in solid export timber crates:
708-1W-00893 Hydraulic Pump FAQ & Related Categories
🔗 Frequently Purchased Together with WA470-6 Hydraulic Pump:
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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