Part of the Case IH Repair Manuals.
All 1,502 pages of this Case IH WD1903, WD2303 Repair Manual (OEM #87738745) are factory-written for one purpose: getting your Self-Propelled Windrower back to factory spec without guesswork. Inside you get full hydraulic schematics that trace fluid routing through the hydrostatic transmission, header drive, and lift circuits, plus wiring diagrams covering every harness, relay, and sensor pinout across both models. Open to the electrical section and you will find fault code tables for the XCM controller, step-by-step diagnostic charts for mechanical and electrical faults, and torque data for hydraulic fittings, gearbox hardware, and brake assemblies. Fill the fuel tank to 454 L, top off the hydraulic reservoir to 54.9 L, and charge the A/C with exactly 2.2 kg of R134a. Every hour your machine sits costs money. Search by keyword, hit a bookmark, and get straight to the procedure.
What's Inside This Case IH WD1903, WD2303 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 45-66 | Precautionary Statements, Safety, Product Identification Numbers, Engine Pin Number, Company Policy, Parts and Specifications, Lubrication |
| Engine | 67-126 | Specifications, Operation, Cylinder Block Assembly, Engine Overhaul, Removal, Installation, Troubleshooting, Fuel System |
| Drivetrain (Front Mechanical Drive & Hydrostatic Transmission) | 127-270 | Special Tools, Planetary Gearbox Drive, Disassembly, Assembly, Hydrostatic Transmission Identification, Torque Specifications, Motor Area |
| Brakes and Controls | 271-288 | Special Tools, Brake Assembly, Removal, Installation, Disassembly, Rotating/Stationary/Primary Disc Assembly, Brake Bleeding Procedure |
| Hydraulic Systems | 289-474 | System Component Locations, Diagram Symbols, Hydraulic System Diagram, Ground Drive Theory of Operation, Hydraulic Bleed Procedure, Circuit Diagrams |
| Rear Axle | 475-522 | Special Tools, Specifications, Extensions and Axle Tube, Wheel Width Adjustments, Extension Widths, Axle Extension Position |
| Climate Control | 523-610 | Compressor, Refrigerant, Refrigerant Oil, Special Tools |
| Electrical Diagnostics & Wiring | 613-673 | Troubleshooting Charts, Electrical Schematics, LCD/Display Module, Alarms, Multimeter, Fuse Panel Identification, Circuit Breakers, Relays, Diodes, Wiring Harnesses and Connectors, Ground Distribution System, Xcm Power Distribution |
| Air Conditioning Systems | 674-707 | Manual and Atc Systems, Manual HVAC System (Standard), Operation |
| Lighting Systems | 708-739 | Lamp Replacement Chart, Flashing Lights and Turn Signals, Road Lights, Tail Lights, Work Lights, Stubble Lights, Console and Dome Lights |
| Electrical Components, Sensors & Battery | 740-788 | Electronic Control Unit Pinout Diagrams, Crankshaft Sensor, Camshaft Sensor, Boost Temperature-Pressure Sensor, Engine Oil Temperature-Pressure Sensor, Rail Fuel Pressure Sensor, Electro-Injectors, Grid Heater, Engine Starting Motor Circuit, Coolant Temperature Sensor, Fuel Temperature Sensor, Battery Charging and Testing |
| Alternator | 789-1360 | Charging System Excitation Circuit Operation |
| Header Attachments | 1361-1456 | Draper Floatation, Cut Height Cylinders, Removal, Inspection, Installation, Control Valve Manifold |
| Cab, Platform & Optional Equipment | 1457-1502 | Deluxe Operator's Seat, Seat Height/Weight Adjustment, Backrest Angle, Seat Suspension System, Deluxe Cab Upgrade Package, A-Pillar Display, Radio, Cold Start Kit |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine Bore | 104 mm | p. 59 |
| Radiator Cap Pressure | 234 Kpa | p. 59 |
| Fuel Tank Capacity | 454 L | p. 61 |
| Hydraulic System Reservoir Capacity | 54.9 L | p. 61 |
| A/C System (R134a) Capacity | 2.2 kg | p. 61 |
| Rear Axle Extension Bolts Torque | 960 N⋅m | p. 477 |
| Hydrostatic Pump Relief Setting (system warm) | 383.3 bar | p. 154 |
| Charge Pump Relief Setting | 20 bar | p. 154 |
| Case Pressure (Continuous) | 1.7 bar | p. 154 |
| Air Spring Working Pressure | 172 - 276 kPa | p. 501 |
| Single-speed Motor to Wheel Housing Torque | 137 N⋅m | p. 156 |
| Header Lift Pump Output Capacity | 20.4 L/min | p. 321 |
