All 425 pages of this Case IH 3152 and 3162 Draper Header Service Manual (OEM #47730908) are factory-written to get your flex or rigid header cutting clean again. Inside you get hydraulic schematics tracing the double gear pump, main control valve, and both reel positioning circuits, plus wiring diagrams covering header leveling control, reel speed and position, and the feeding control system. A full troubleshooting section walks you through the electrical harnesses and connectors before you pull a single wire. Set your auger drive chain tension to 7–13 mm total movement, then verify the Left Height/Tilt potentiometer reads 800–1200 Ω between pins A and C before chasing a leveling fault. Your header is sitting idle while you dig through forums. Download this PDF, pull it up on your tablet at the machine, and jump to any section instantly with built-in bookmarks.
What's Inside This Case IH 3152/3162 Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 5-34 | Foreword - Important Notice Regarding Equipment Servicing, Safety Rules - Ecology and the Environment, Safety Rules, Safety Rules - Personal Safety |
| Hydraulic Systems | 35-120 | Double Gear Pump, Main Control Valve, Reel Vertical Positioning System, Reel Fore-And-Aft Positioning System, Hydraulic Reservoir and Expansion Tank, Hydraulic System Accumulator |
| Electrical Systems | 121-200 | Electrical System, Harnesses and Connectors, Header Leveling Control, Reel Speed and Position Control, Feeding Control System |
| Attachments/Headers | 201-406 | Attachment/Header Support and Drives, Attachment/Header Reel, Attachment/Header Cutting Mechanism, Attachment/Header Feed Auger, Attachment/Header Frame, Header Drive, Belt Feeding |
| Product Feeding | 407-414 | Length-of-Cut Gearbox |
| Platform, Cab, Bodywork, and Decals | 415-423 | Machine Shields and Guards |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Auger drive chain case capacity | 5 l (5.3 US qt) | p. 30 |
| Auger drive chain tension | 7 - 13 mm (0.3 - 0.5 in) total movement | p. 319 |
| Left Height/Tilt potentiometer (R-001) resistance (between pin A and pin C) | 800 - 1200 Ω | p. 176 |
| Left Height/Tilt potentiometer (R-001) resistance (between pin A and pin B) | 150 - 1200 Ω | p. 176 |
| Cutterbar guard rebound clearance | 5 - 20 mm (0.2 - 0.8 in) | p. 274 |
| M5 bolts and M5 lock nuts torque (slat connector) | 5.6 - 6.2 N·m (49.6 - 54.9 lb in) | p. 392 |
| M24 Class 10.9 Bolt (Plated) Torque | 1016 N·m (750 lb ft) | p. 13 |
| Pipe Thread Fitting (3/4-14) Torque | 54 N·m (40 lb ft) | p. 19 |
| Hydraulic Expansion Tank Capacity | 13 l (3.4 US gal) | p. 29 |
| Hydraulic Reservoir Capacity | 90 l (23.8 US gal) | p. 29 |
| Center Knife Gearbox Capacity | 6.0 L (1.6 US gal) | p. 30 |
| Knife Speed | 630 cycles/min (1260 cuts/min) | p. 26 |
Case IH 3152/3162 Common Problems This Manual Covers
Case IH 3152 cutterbar guards fail to rebound after being pressed down, flex arms won't spring back p. 274
Inspect each flex arm pivot point for wear and lubrication. Push each guard down and verify it rebounds 5-20 mm (0.2-0.8 in) as specified on page 274. Replace any guard that stays flat or rebounds unevenly. Apply grease to the pivot pin before reinstalling the flex arm assembly.
Manual Section: Attachment/Header cutting mechanism - Problem solving – Crop loss at cutterbarAHHC sensors disabled in the cab display, header calibration fails every time p. 176
Verify AHHC sensors are enabled under Head 2 in the Toolbox menu on the cab display. Unplug the Left Height/Tilt sensor connector and measure resistance between pins A and C; the spec is 800-1200 Ω (page 176). A reading outside this range confirms sensor failure. Reconnect and re-run calibration.
Manual Section: Self-leveling sensor Left-hand stubble height sensor - Testing Left Height/TiltAuger drive chain case fractures before first season ends, auger drifts out of position p. 319
Check chain case oil level first; capacity is 5 l (5.3 US qt) per page 30. Measure auger drive chain tension at the inspection point: total movement must be 7-13 mm (0.3-0.5 in) per page 319. Over-tight chains crack the housing. Adjust the tensioner and top off the oil before returning to field.
Manual Section: Attachment/Header feed auger - Problem solvingIn-cab flotation adjustment locked at position 0, header height stays uneven across the field
Confirm the lift cylinder safety stop is fully lowered; flotation calibration is blocked until it is down. Check the troubleshooting procedures for hydraulic valve response. Inspect the accumulator precharge pressure on page 45: spec is 7 bar (102 psi). Examine flotation turnbuckle jam nuts for looseness, re-tension, then cycle the header through full float range to confirm even response.
Manual Section: Hydraulic systems - Problem solvingDraper belt clips slipping out of alignment, side drapers back-feeding or stalling mid-run p. 392
Verify LHT and LC sensor connectors are fully seated; an unplugged sensor defaults the tilt system incorrectly. Torque all M5 slat connector bolts to 5.6-6.2 N·m (49.6-54.9 lb in) as noted on page 392. Check belt alignment at both ends of each draper, then adjust the tilt position to bring clips back into alignment.
Manual Section: Belt feeding - Problem solvingFrequently Asked Questions
What is the correct rebound measurement for guards on Case IH 3152/3162 draper header?
To adjust the cutterbar weight (or ground pressure), raise the cutterbar approximately 305 mm (12 in) off the ground. Press the guard down to the bottom of its range and release, then turn the flotation adjustment bolt until the tip of the guard rebounds 5 - 20 mm (0.2 - 0.8 in) above the lowest point.
What are the replacement specifications for Auger drive chain case?
The auger drive chain case has a capacity of 5 l (5.3 US qt). It should be filled with CASE IH AKCELA GEAR 135 H EP 80W-90 oil, which should almost completely fill the sight glass.
How do you fix case IH 3152 cutterbar guards fail to rebound after being pressed down, flex arms won't spring back?
Inspect each flex arm pivot point for wear and lubrication. Push each guard down and verify it rebounds 5-20 mm (0.2-0.8 in) as specified on page 274. Replace any guard that stays flat or rebounds unevenly. Apply grease to the pivot pin before reinstalling the flex arm assembly.
How do you fix AHHC sensors disabled in the cab display, header calibration fails every time?
Verify AHHC sensors are enabled under Head 2 in the Toolbox menu on the cab display. Unplug the Left Height/Tilt sensor connector and measure resistance between pins A and C; the spec is 800-1200 Ω (page 176). A reading outside this range confirms sensor failure. Reconnect and re-run calibration.
What do I get after purchasing this Case IH 3152, 3162, Draper Header manual?
This is a 425-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Is this Case IH 3152, 3162, Draper Header Service Manual printable?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
Does this Case IH 3152, 3162, Draper Header manual include wiring diagrams?
Yes, full electrical schematics are included with wire colors, connector locations, and circuit descriptions.
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