Part of the Case IH Repair Manuals.
Electrical gremlins park more of these combines mid-harvest than anything mechanical, which is why over a third of this 826 page Case IH CT5050 to CT5080 series repair manual PDF (OEM 84099130) is devoted to wiring, troubleshooting, and monitor calibration across all four models. Factory wiring diagrams trace the starter circuit, hydrostatic drive control, and grain tank level sensing wire by wire, while hydraulic schematics map the stack valves and cylinders behind your header lift and reel drive. Threshing, cleaning, grain storage, and a complete engine overhaul section fill out the rest. Set wobble box bearing adjustment between 0.5 and 1 Nm, and check cleaning fan belt depth at 40 mm on the drive side before the season starts. Misread a hydrostatic fault and you buy a pump the machine never needed. Bookmarked and keyword friendly, with serial number breakdowns so your first parts order is the right one.
What's Inside This Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 7-18 | Explanation of Machine and Header Serial Numbers, Notes for Service Parts Catalogue Consulting, Tightening Torques |
| Traction and Steering Axle | 19-64 | Traction Gearbox, Brakes, Final Drives, Steering Axles |
| Grain Header | 65-84 | Reel, Knife and Wobble Box, Feed Auger |
| Straw Elevator | 85-100 | Straw Elevator Chain, Upper Shaft, Bottom Shaft |
| Threshing | 101-112 | Concave Specifications, Concave Adjustments, Drum Variator |
| Separation | 113-132 | Separating Concaves, Intermediate Shaft, Beater Shaft, Straw Walkers and Straw Walker Shafts |
| Cleaning | 133-162 | Cleaning Fan and Variator, Cleaning Shoe Drive, Upper Screen Box, Lower Screen Box |
| Grain Storage | 163-200 | Unloading System, Clean Grain Transport System, Grain Elevator and Chain, Return System |
| Engine | 201-324 | Specifications, Description and Operation, Engine Overhaul |
| Airconditioning | 325-336 | Airconditioning Circuit, Ventilation Unit, Compressor Clutch Replacement |
| Hydraulic System | 337-390 | Hydraulic Components, Stack Valves, Hydraulic Cylinders |
| Hydrostatic System | 391-468 | Hydrostatic Pump, Hydrostatic Motor, Powered Rear Wheel Drive |
| Electrical System - General Information | 469-494 | Wiring Diagrams, Wire Identification, Fuses, Symbols, Connectors |
| Electrical System - Location of Main Components | 495-516 | Modules, PCBs, Monitors, Switches, Relays, Lighting |
| Electrical System - Wiring Diagrams | 517-578 | Starter Circuit, Hydrostatic System, Engine Throttle Control, Engine Protection, Grain Tank Level |
| Electrical System - Troubleshooting | 579-738 | Hydrostatic Drive, Throttle Control, Straw Chopper Engagement, Unloading Auger Position Control, Header Swing |
| Electrical System - Calibrations | 739-826 | InfoView Monitor, Header Height Control, Ground Speed, Returns Constant, Self-Diagnostic Error Reports |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Torque D | 80 Nm | p. 47 |
| Torque E | 100 Nm | p. 47 |
| Wobble box bearing adjustment torque | 0.5 to 1 Nm | p. 71 |
| Straw elevator weight | 1000 kg | p. 86 |
| Belt depth at drive side | 40 mm | p. 137 |
| Clearance between half shaft O and tube N | 2 mm | p. 165 |
| Auger adjustment dimension | 65.5 mm | p. 166 |
| Distance A for grass seed thrower plates | 6 mm | p. 165 |
| Traction Gearbox Oil Capacity | 15 litres | p. 20 |
| Traction Gearbox Oil Viscosity | SAE 80W-90 | p. 20 |
| CT5050 | ||
| Final Drive Capacity (Gear ratio 10/75) | 5 litres | p. 46 |
| CT5070-CT5080 | ||
| Final Drive Capacity (Gear ratio 11/111) | 7.2 litres | p. 46 |
