All 516 pages of this Case IH Corn Header Service Manual (OEM #47869954) focus on one family: the 4206F, 4206R, 4208F, 4208R, 4212F, 4212R, 4406F, 4406R, 4408F, 4408R, 4412F, 4412R, and 4416R corn headers. You get complete hydraulic schematics covering the head and header hydraulic drive, deck plate system, and flip-up header circuits, plus wiring diagrams with full harness routing and connector pinouts for the feeding control system and warning indicators. Step-by-step procedures run through the corn header frame, feed auger, rotating dividers, stalk choppers, row-independent gearboxes, and the length-of-cut gearbox, backed by torque tables for both standard assembly and hydraulic fittings. Replace your No. 40 roller chain when 40 pitches stretch past 523 mm (20.591 in); the hydraulic motor housing seal seats in a 73 mm I.D. groove. Your header is down and harvest doesn't wait. Bookmarked for instant section jumps; search any spec by keyword and get back to the field.
What's Inside This Case IH 4200/4400 Series Corn Header Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 6-81 | Foreword - Important Notice Regarding Equipment Servicing, Personal Safety, Safety Rules, Safety Signs - Rigid Headers, Basic Instructions - Shop and Assembly |
| Hydraulic Systems - 35 | 82-143 | Head and Header Hydraulic Drive, Deck Plate Hydraulic System, Flip-Up Header, Hydraulic Systems |
| Electrical Systems - 55 | 144-233 | Electrical System, Harnesses and Connectors, Feeding Control System, Warning Indicators, Alarms, And Instruments |
| Header Frame and Auger | 234-258 | Attachment/Header Frame, Attachment/Header Feed Auger |
| Corn Header Structure and Feeder | 259-326 | Snapper Unit, Row Unit, Feed Auger Shafts, Auger Drive Gears |
| Rotating Dividers and Stalk Choppers | 327-366 | Stalk Chopper Knives, Stalk Chopper Gearbox, Rotating Divider Auger Motor |
| Row-Independent Header Components | 367-432 | Row-Independent Header Guards, Row-Independent Header Gearboxes, Row-Independent Rotating Dividers |
| Header Drives and Shields | 433-485 | Attachment/Header Support and Drives, Corn Header Shields and Guards, Header Drive |
| Product Feeding - 60 | 486-507 | Length-Of-Cut Gearbox |
| Lubrication System - 71 | 508-516 | Oiler System |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| O.D. seal size for mounting flange | 49 mm (1.937 in) | p. 91 |
| I.D. seal size for motor housing seal groove | 73 mm (2.875 in) | p. 92 |
| Replacement of connectors | Visually inspect the harness and connectors for damage, bent or dislocated pins, corroded terminals or broken wires. Repair the faulted conductor Wiring harnesses - Repair (55.100) | p. 212 |
| Replacement length for No. 40 Chain (08A) at 40 pitches | 523 mm (20.591 in) | p. 69 |
| Replacement length for No. 50 Chain (10A) at 40 pitches | 654 mm (25.748 in) | p. 69 |
| Torque for hydraulic fittings on auger motor | 102 - 112 N·m (75 - 83 lb ft) | p. 95 |
| Torque for export hydraulic hose (rotating dividers motor) | 60 - 68 N·m (44 - 50 lb ft) | p. 334 |
| Stalk roll gearbox capacity | 2.2 L (2.3 US qt) | p. 76 |
| Stalk chopper gearboxes (Front) capacity | 0.70 L (0.74 US qt) | p. 76 |
| Stalk chopper gearboxes (Rear) capacity | 0.30 L (0.32 US qt) | p. 76 |
| Metric non-flanged hardware torque (M4, Class 8.8 PLN/ZND) | 2.9 N·m (26 lb in) | p. 61 |
| Metric non-flanged hardware torque (M24, Class 10.9 PLN/ZND) | 1016 N·m (749 lb ft) | p. 61 |
Case IH 4200/4400 Series Corn Header Common Problems This Manual Covers
Case IH corn header hydraulic actuator seals fail past 200 hours, header won't fold or lift
Inspect the actuator seals: mounting flange O.D. is 49 mm (1.937 in) and motor housing I.D. groove is 73 mm (2.875 in), both detailed on pages 91 and 92. When reconnecting lines, torque all size-8 hydraulic tube nuts to 47-54 N·m (35-40 lb ft). Trace the full circuit on the hydraulic schematic to locate any secondary leaks before reassembly.
Manual Section: Hydraulic Systems - 35Wiring harness connectors corrode in humid field conditions, header engagement drops out unexpectedly p. 212
Visually inspect all harness connectors for bent pins, corroded terminals, and broken wires per the repair procedure on page 212. Measure header type module resistance: pins A and B should read 75 Ω (+/- 5%) and pins E and F should read 300 Ω (+/- 5%) as specified on pages 219 and 220. Use the wiring diagram to trace any open circuit back to the fault location.
Manual Section: Electrical Systems - 55Drive chain wears prematurely under heavy corn load, grinding noise and chain slap mid-run p. 69
Measure chain stretch against the replacement table on page 69: No. 50 chain (10A) must not exceed 654 mm (25.748 in) at 40 pitches. Check the spec on page 249 to set feed auger drive chain slack to 4-5 mm (0.16-0.20 in). After tensioning, torque the M14 tensioner rod nut to 95 N·m (70 lb ft) and jam nut to 60 N·m (44 lb ft).
Manual Section: Attachments/Headers - 58Gathering chain loses ear corn, pulls up stalks whole, or plugs completely during harvest
Check the gathering chain troubleshooting guide to match your symptom to a specific root cause. Verify chain slack deviation does not exceed 6.5 mm (1/4 in) per page 319. Align adjacent chains so stagger falls between 118-162 mm (4.65-6.38 in) for staggered-tooth configuration per page 410, or within 0-22 mm (0-0.87 in) for aligned-tooth per page 412.
Manual Section: Attachments/Headers - 58Tilt sensor reads incorrect position, header height control hunts or refuses to respond p. 147
Test tilt sensor continuity using the wiring diagram and the electrical pinout to identify the correct test points on each connector. At the potentiometer, verify resistance reads 800-1200 Ω across an active rotation of 83-87° with supply voltage not exceeding 12 V per page 147. Replace any sensor reading outside those bands before recalibrating the height control system.
Manual Section: Electrical Systems - 55Frequently Asked Questions
How to configure the 'Head 1' tab on the Case IH corn head monitor?
To configure the 'Head 1' tab, first select the 'Head 1' tab (1) from the toolbox menu in the combine display. Then, select 'Header type' from the drop-down menu and choose 'Corn' (2). Next, select 'Cutting type' from its drop-down menu and choose 'Row' (2).
What are the replacement specifications for hydraulic actuator seals?
When replacing hydraulic actuator seals, discard all used seals and replace with new ones. Specific dimensions mentioned include a 49 mm (1.937 in) O.D. seal and a 73 mm (2.875 in) I.D. seal for the motor housing seal groove. For cylinders, all seals can be replaced and are available in a seal kit; ensure to order the correct seal kit.
How do you fix case IH corn header hydraulic actuator seals fail past 200 hours, header won't fold or lift?
Inspect the actuator seals: mounting flange O.D. is 49 mm (1.937 in) and motor housing I.D. groove is 73 mm (2.875 in), both detailed on pages 91 and 92. When reconnecting lines, torque all size-8 hydraulic tube nuts to 47-54 N·m (35-40 lb ft). Trace the full circuit on the hydraulic schematic to locate any secondary leaks before reassembly.
How do you fix wiring harness connectors corrode in humid field conditions, header engagement drops out unexpectedly?
Visually inspect all harness connectors for bent pins, corroded terminals, and broken wires per the repair procedure on page 212. Measure header type module resistance: pins A and B should read 75 Ω (+/- 5%) and pins E and F should read 300 Ω (+/- 5%) as specified on pages 219 and 220. Use the wiring diagram to trace any open circuit back to the fault location.
Is this Service Manual a digital download?
A 516-page Service Manual in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Am I able to print pages from this manual?
Yes, print as many copies as you want, and there are no restrictions. Many mechanics print the section they need and bring it to the shop floor.
Are hydraulic system diagrams in this Case IH 4206F & variants Service Manual?
Yes, this Case IH 4206F & variants Service Manual includes hydraulic system diagrams, circuit schematics, and component specifications.












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