Part of the Case Repair Manuals.
Ground drive hydraulics take a long stretch of this 794-page Case Service Manual, OEM Rac 6-22460, and the same treatment carries through header drive, steering, engine, and cab on the 8860, 8860HP, 8870, and 8880 windrower tractors. This Case 8860, 8870, 8880 service manual PDF walks the charge pump, tandem pump, and ground drive motors through operation, schematics, tests, and troubleshooting before the electrical section opens into full machine wiring you can trace circuit by circuit. Header lift and flotation valve work ends with the adjustment numbers, not a shrug. Set flotation by watching for a gauge drop of 1379 kPa (200 psi); your oil pressure alert lamp should light at 15 psi, with shutdown at 10. Bookmarked and text-searchable, it rides along wherever the machine sits.
What's Inside This Case 8860, 8860HP, 8870, 8880 Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 3-48 | Introduction, Safety Rules, General Machine Specifications, And Standard Torque Specifications, Maintenance and Lubrication, Decals |
| Engine | 49-120 | Engine Removal and Installation, Engine Accessories, Engine Service Information |
| Fuel System | 121-140 | Fuel System and Engine Controls, Fuel Injection Pump and Fuel Injectors |
| Electrical System | 141-231 | Removal and Installation of Electrical Components, Specifications, Schematics, And Troubleshooting, Instruments |
| Steering | 232-277 | Removal and Installation of Steering Components, Steering Control Linkage Troubleshooting and Adjustment |
| Power Train | 278-467 | Ground Drive Hydraulic System Specifications, Operation, Schematics, Troubleshooting, And Tests, Charge Pump, Tandem Pump, Ground Drive Motors |
| Brakes | 468-477 | Parking Lock |
| Hydraulic System | 478-695 | Hydraulic System Specifications, Operation, Schematics, Troubleshooting, And Tests, Cleaning the Hydraulic System, Header Drive Pump, Header Drive System |
| Chassis | 696-794 | Air Conditioner Components, Air Conditioning Troubleshooting, Cab, Seat, And Windshield, Walking Beam |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Engine oil pressure alert lamp illumination | 15 psi | p. 217 |
| Engine oil pressure shut down lamp illumination | 10 psi | p. 217 |
| Flotation gauge pressure drop | 1379 kPa (200 psi) | p. 508 |
| Ground Drive System Relief Pressure | 37 925 kPa | p. 14 |
| Header Lift System Relief Pressure | 17 237 kPa | p. 14 |
| 8860, 8860HP | ||
| Engine Oil Capacity with filter change | 10.5 L | p. 14 |
| Hydraulic System Total Capacity | 87 L | p. 14 |
| Accumulator Charge Pressure | 5516 kPa | p. 14 |
| 8870 | ||
| Engine Oil Capacity with filter change | 10.5 L | p. 15 |
| Hydraulic System Total Capacity | 87 L | p. 15 |
| 8880 | ||
| Engine Oil Capacity with filter change | 15 L | p. 16 |
| Hydraulic System Total Capacity | 98.4 L | p. 16 |



















