Need factory repair data for your Case WDX901–WDX1701? This 866-page Self Propelled Windrower repair manual (OEM #87017405) runs from engine overhaul to cab bodywork, covering all three machines in a single factory reference. Inside: hydraulic schematics tracing every circuit through the hydrostatic transmission and implement system, complete wiring diagrams with connector pinouts, and a full engine troubleshooting section with error codes and fault diagnostics. You get torque tables and exploded assembly views across every major system, including brakes, rear axle, and climate control. Set camshaft idler gear backlash to 0.025–0.30 mm on any model, and on the WDX901 or WDX1101 verify fuel injection pump gear backlash at 0.10–0.53 mm before timing. No more chasing faults with a multimeter and a guess. Download once, search by keyword, and pull up the right spec the first time.
What's Inside This Case IH WDX901–WDX1701 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 19-40 | Precautionary Statements, Safety, General Safety Information, Introduction, Lubrication, Specifications |
| Engine | 41-280 | Specifications, Description of Operation, Engine Troubleshooting, Engine Removal and Installation, Disassembly and Overhaul, Camshaft |
| Front Mechanical Drive | 281-302 | Description of Operation, Planetary Final Drive, Hydraulic Motor Shaft, Coupling, Hub Shaft, Ring Gear |
| Rear Axle | 303-324 | Specifications, Description of Operation, Adjustment, Wheel, Axle Shaft and Hub, Axle Support Fork |
| Hydrostatic Transmission | 325-396 | Specifications, Description of |
| Brakes and Controls | 397-416 | - |
| Hydraulic Systems | 417-564 | - |
| Cab Climate Control | 565-618 | - |
| Electrical | 619-820 | General Troubleshooting, Electrical System Components, Windrower Electronic System, Air-Conditioning Electrical System, Engine Electrical Systems |
| Optional Equipment | 821-828 | Field-Installed Options, Header Flotation Trim Kit, Hydraulic Header Tilt Cylinder Kit, Radio, Service Floodlight, Thermostart Kit |
| Platform, Cab, Bodywork, and Decals | 829-866 | Deluxe Seat, Air Ride Seat, Cab Door, Cab Door Handle, Cab Floor Mat, Safety Decals |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Control arm to pintle shaft torque | 25 N⋅m (19 ft lbs) | p. 328 |
| Camshaft Idler Gear Backlash with Fuel Injection Pump | 0.025 - 0.30 mm (0.001 - 0.012″) | p. 45 |
| Header Lift System Oil Level (Troubleshooting) | No or low oil | p. 523 |
| WDX901, WDX1101 | ||
| Fuel Injection Pump Gear Backlash (4-cylinder) | 0.10 - 0.53 mm (0.004″ - 0.021″) | p. 107 |
| Fuel Filter Type | Single Disposable Element | p. 148 |
| Engine Displacement | 4987 cm³ (5 L) | p. 34 |
| Engine Oil Capacity (With Oil Filter) 4-Cylinder | 13.6 Litres (17.0 U.S Qts) | p. 49 |
| WDX1701 | ||
| Fuel Filter Type | Sedimenter and Separate Filter | p. 188 |
| Engine Displacement | 7.5 L (456 cu. in.) | p. 37 |
| Engine Rated Horsepower | 166 HP | p. 37 |
| WDX901 | ||
| Engine Rated Horsepower | 87 | p. 34 |
| WDX1101 | ||
| Engine Rated Horsepower | 108 | p. 34 |
Case IH WDX901–WDX1701 Common Problems This Manual Covers
Case IH WDX901 complete loss of hydraulic power to the windrow elevator during field operation. p. 523
Inspect the header lift system oil level as outlined on page 523. Fill the reservoir if no or low oil is present. Test the header lift pump relief pressure and verify it reaches 234 bar (3400 PSI) on page 511. Replace the hydraulic pump drive shaft if pressure drops.
Manual Section: Hydraulic Header Lift System TroubleshootingEngine stalls unexpectedly under heavy harvesting load with absolutely no warning or prior error codes.
Check the high pressure fuel filter condition. Replace the filter assembly if the machine exceeds the 600 Hours change interval listed on page 148. Verify camshaft idler gear backlash with the fuel injection pump measures 0.025 to 0.30 mm (0.001 to 0.012 inches) per the procedure on page 45.
Manual Section: Engine Troubleshooting (General)Steering wheel becomes highly erratic and power assist fails intermittently during tight field maneuvers. p. 325
Test hydrostatic transmission relief settings on page 327 and confirm system pressure holds at 345 bar (5000 PSI). Inspect the control linkage for binding. Torque the control arm to pintle shaft bolts to exactly 25 N⋅m (19 ft lbs) as specified on page 328 to eliminate control slop.
Manual Section: Hydrostatic TransmissionFrequently Asked Questions
What are the recommended service intervals?
Recommended service intervals vary by component. Engine oil and filter should be changed every 150-300 hours, or every 50 hours if using high sulfur fuel. The air cleaner's outer element requires service every 300 hours and replacement every 600 hours, while the inner element should be serviced every 1200 hours. Hydrostatic transmission fluid and filter should be changed after the first 50 hours, then every 500 hours. Fuel filters are recommended for replacement every 600 hours, and fuel injectors every 1200 hours for 4-cylinder engines or 1800 hours for 6-cylinder engines.
What fluids and capacities does this machine require?
The machine requires various fluids with specific capacities. The hydraulic system reservoir holds 38 L (10 gal.) of HY - Tran Ultra hydraulic oil. The cooling system capacity is 15 L (4 gal.) for 4-cylinder engines and 26.5 L (7 gal.) for 6-cylinder engines, using a mixture of 45% water, 50% antifreeze, and 5% coolant conditioner. Engine oil capacity is 13.6 L (17 qts.) with filter for 4-cylinder engines and 19 L (20 qts.) with filter for 6-cylinder engines, using 10W-30 or 15W-40 oil. The fuel tank capacity is 416 L (110 gal.) for all models, using Grade 1-D or 2-D diesel fuel. Final drive capacity is 0.89 L (0.94 qts.) and flywheel gearbox capacity is 2.36 L (2.5 qts.) for WDX901/1101, or 1.65 L (1.75 qts.) for WDX1701.
How to troubleshoot engine won't start?
If the engine won't start, first check for low cranking speed, incorrect pump timing, restricted fuel filters, contaminated fuel, low compression, or air in the fuel system. For electrical issues, verify the 5A start fuse, check voltage at the 25A key main circuit breaker posts, and inspect the BAT terminal of the key switch. Also, check the START terminal of the key switch while holding it in the 'start' position. For detailed electrical troubleshooting, refer to the 'Starter Will Not Turn Over Engine' chart on page 703.
What are the hydraulic system specifications?
The hydraulic system specifications vary by model. The reservoir capacity is 30-38 L (8-10 gallons) with a 100-mesh screen filter and a 10-micron filter for case drain and header lift return. Hydrostatic pump displacement is 44 cc with a relief setting of 345 bar (5000 PSI), and the charge pump has a displacement of 16.4 cc/REV (15.5 GPM) with a relief setting of 15.8 bar (230 PSI). Motor displacements are 46 cc/REV (2.8 cu. in./REV) for low speed and 35 cc/REV (2.1 cu. in./REV) for high speed. The WDX1701 header drive pump (Series 90) has a displacement of 0-100 cc/rev, a pressure limiter setting of 290 bar (4200 PSI), and a relief valve setting of 483 bar (7000 PSI).
What do I get after purchasing this Case WDX901–WDX1701 manual?
This is a 866-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Are there any print restrictions on this Case WDX901–WDX1701?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
Does this Case WDX901–WDX1701 manual include wiring diagrams?
Yes. You'll find full electrical schematics with wire routing diagrams, connector identification, and circuit descriptions.
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