Part of the Case IH Repair Manuals.
Feedroll drive stalls in standing corn and the whole harvest line stops behind it. That job is why the 541-page Case IH 8750 forage harvester Service Manual PDF exists, published by Hay & Forage Industries, publication 7-61890. Hydraulic system coverage runs the largest stretch of the book, with operation notes, schematics, and troubleshooting split cleanly between machines CFH0071101 thru CFH71175 and CFH71176 and later, so you trace the right circuit for your serial number. Electrical schematics and troubleshooting charts take you from a dead feedroll drive actuator back to the connector causing it, and chassis chapters cover main drive, cutter and feedrolls, augers, blower and spout. Fill the hydraulic system to 74 U.S. QT (70 L) without an oil cooler, 76 U.S. QT (71.9 L) with one; the gearbox holds 2 U.S. QT (1.9 L). Downtime here is measured in acres, not hours. Bookmarked, text searchable, and printable, so the pages you need can live on the bench and get greasy.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 4-39 | Index, Introduction, Safety Rules, General Machine Specifications, And Standard Torque Specifications, Maintenance and Lubrication, Safety Decals |
| Electrical | 40-197 | System Description and Operation, Troubleshooting Charts, Checking the Circuit for the Feedroll Drive Actuator |
| Hydraulic System | 198-413 | Index (Tractor Supplied Hydraulic System Operation, Schematics, And Troubleshooting) |
| Chassis | 414-541 | Wheels and Tires, Main Drive, Cutter and Feedrolls, Auger, Blower and Spout |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic system capacity without oil cooler | 74 U.S. QT (70 L) | p. 25 |
| Hydraulic system capacity with oil cooler | 76 U.S. QT (71.9 L) | p. 16 |
| Base unit weight | 5070 LB (2302 kg) | p. 15 |
| Hydraulic system capacity (without oil cooler) | 74 U.S. QT (70 L) | p. 16 |
| Gearbox oil capacity | 2 U.S. QT (1.9 L) | p. 16 |
| Cutterhead knife speed | 1000 rpm | p. 15 |
| Blower speed | 1000 rpm | p. 15 |
| Spout rotation | 360° | p. 15 |

















