Description
708-1W-00883 Hydraulic Pump Assembly by Tatan Overview
The 708-1W-00883 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 WA380-6, WA380Z-6, and WA430-6 18-ton wheel loaders, replacing your worn hydraulic pump with a Tatan complete assembly eliminates engine stalling under pile penetration, restores snappy boom lift speeds, and cures internal pressure bypass across demanding aggregate quarry, batching plant, and earthmoving applications.
Driven directly by the 143 kW SAA6D107E-1 diesel engine and routing high-pressure fluid through the WA380-6 main control valve, every factory-calibrated 708-1W-00883 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-00883 Hydraulic Pump
| Product Category | Hydraulic Pump Assembly | Warranty | 1 Year / 12 Months |
| Specific Valve Model | Komatsu 708-1W Variable Axial Piston Pump | Brand Name | Tatan |
| Compatible Equipment | Komatsu WA380-6 | WA380Z-6 | WA430-6 | OEM Part Number | 708-1W-00883 / 708-1W-00741 |
| Matched Engine Series | Komatsu SAA6D107E-1 Diesel (143 kW / 191 HP) | Place of Origin | Guangdong, China |
| Max Relief Pressure | 31.4 – 34.3 MPa (320 – 350 bar) | Rated Pump Flow | Approx. 240 L/min @ 2100 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:
Wheel Loader Hydraulic Piston Pump & Implement Flow Standards
Delivering rapid hydraulic response during constant bucket crowding and dumping requires specialized pump durability. When repowering with the 708-1W-00883 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 aggregate pile crowding, preventing engine stall.
🔄 Anti-Fatigue Slipper Retainers
Heavy-gauge alloy retainer plates resist hydraulic shock from rapid 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 240 L/min flow.
Application Scenarios & Buyer Value
When upgrading or replacing your wheel loader hydraulic heart with our 708-1W-00883 Hydraulic Pump, buyers achieve maximum operational uptime and flow control:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Komatsu WA380-6 Pump Replacement | 1:1 direct bolt-on installation eliminates engine stalling and restores instantaneous boom raise and bucket dump cycle speeds. |
| 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 aggregate scooping and truck loading. |
| Heavy Equipment Parts Stockists | Fast-moving, high-demand 18-ton loader hydraulic pump inventory ready for immediate shipment to minimize customer downtime. |
708-1W-00883 Hydraulic Pump OEM Diagnostic & Troubleshooting Guide
Use this OEM manual hydraulic diagnostic guide to troubleshoot implement pump symptoms on your Komatsu WA380-6 wheel loader:
| Hydraulic Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Sluggish boom raise & weak breakout when crowding 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-00883 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 143 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 high-cycle loading cycles. | Stop operation immediately; flush hydraulic tank and lines, install Tatan new 708-1W-00883 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 240 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-00883 Hydraulic Pump unit is vacuum-sealed and packaged in solid export timber crates:
708-1W-00883 Hydraulic Pump FAQ & Related Categories
🔗 Frequently Purchased Together with WA380-6 Hydraulic Pump:
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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