Part of the Case IH Repair Manuals.
All 398 pages of this Case IH TerraFlex 3020 Auger Header Service Manual (OEM #47627573) are built around one mission: returning your header to factory condition, from the main gearbox and slip clutch through every hydraulic and electrical subsystem. Inside: full hydraulic schematics for the flex solenoid system and reel positioning circuits, plus wiring diagrams with complete harness and connector pinouts covering cab header controls, reel speed and position control, and the feeding control system. Exploded views walk you through the PTO drive shaft, feed auger, and cutting mechanism, with a troubleshooting section and torque tables rounding out the coverage. Set the moving knife clearance to 0.0–0.5 mm against the finger guards, then torque M16 wobble box arm bolts to 210–285 N·m (155–210 lb ft). Stop guessing at clearances. Bookmarked and searchable; pull it up on your tablet at the machine and get back to cutting.
What's Inside This Case IH 3020, TerraFlex 3020 Auger Header Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 6-51 | Basic Instructions - Shop and Assembly, Torque - Minimum Tightening Torques for Normal Assembly, Torque - Standard Torque Data for Hydraulics |
| Main Gearbox and Drive - 14 | 52-69 | Power Take-Off (PTO) Shaft - Exploded View - PTO Drive Shaft, Main Gearbox and Drive - Install - Main Drive, Main Gearbox and Drive - Tighten - Main Shaft Bearing |
| Clutch - 18 | 70-81 | Slip Clutch or Flywheel Damper |
| Hydraulic Systems - 35 | 82-115 | Hydraulic Systems - General Specification - Flex Solenoids, Hydraulic Systems - Hydraulic Schema - Hydraulic Schematic |
| Electrical Systems - 55 | 116-211 | Electrical System, Hydraulic System Control, Harnesses and Connectors, External Lighting, Feeding Control System, Cab Header Controls, Reel Speed and Position Control |
| Attachments/Headers - 58 | 212-375 | Attachment/Header Reel, Attachment/Header Reel Control System, Attachment/Header Cutting Mechanism, Attachment/Header Feed Auger, Attachment/Header Frame |
| Platform, Cab, Bodywork, and Decals - 90 | 376-398 | Machine Shields and Guards, Decals and Plates, Fenders and Guards |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Flex arm tension adjustment for ground pressure | 3 - 6 mm (0.12 - 0.24 in) off of the down stop | p. 291 |
| Clearance between hold-down clip and knife | 0.5 - 1 mm (0.020 - 0.039 in) | p. 286 |
| Clearance between moving knife and finger guards | 0.0 - 0.5 mm (0.0 - 0.02 in) | p. 287 |
| Rear floor to auger flight clearance | 13 - 17 mm (0.5 - 0.7 in) | p. 311 |
| Floor stripper to auger flight clearance | 5 - 9 mm (0.2 - 0.4 in) | p. 311 |
| Front floor to auger finger clearance | 18 - 22 mm (0.7 - 0.9 in) | p. 311 |
| Torque for auger cover bolts | 10 N·m (88.5 lb in) | p. 347 |
| Reel drive chain tension | just possible to move a link laterally across the sprocket by hand | p. 233 |
| Maximum allowable wear elongation for roller chain (general) | approximately 3 % | p. 42 |
| Clearance between hold-down clips and knife (with shims) | 0.1 - 1 mm (0.004 - 0.04 in) | p. 286 |
| Clearance between knife hold-down clips and knife (on press bar) | 0.5 - 1 mm (0.020 - 0.039 in) | p. 286 |
| M10, CLASS 8.8, UNPLATED bolt torque | 37 N·m (27 lb ft) | p. 35 |
