Case Axial-Flow 9250 Tier 4B Final Combine Service Manual (51586252) (March 2019)

These Axial-Flow 9250 combines usually live in dust, heat, long days, and short weather windows, so when they quit, it’s never at a good time. This service manual helps you trace and isolate faults instead of just throwing parts at it—engine, drives, power coupling, all the main systems. Say you lose rotor drive under load: with this, you’ll walk through pressure checks, linkage inspection, and drive alignment in order, so you can verify what’s actually failed before you park it for half a day.

Applications & Use Cases

• Track down hydraulic issues by following the step-by-step tests to isolate a bad valve, weak pump, or simple routing problem.
• Chase electrical faults with logical checks so you can verify wiring, switches, and sensors before you blame the controller.
• Inspect and align driveline components after a breakdown so belts, chains, and couplers run true and don’t fail again next week.
• Bleed and test fuel and hydraulic systems properly after repairs so you’re not cranking forever or burning up a dry pump.
• Plan parts and labor by tracing the procedure first, so you know what has to come off and what you can leave alone.

FAQ

Q: Is this a searchable PDF or just scanned pages?

A: It’s typically a searchable PDF, so you can jump to sections and use keywords while you’re in the shop.

Q: Can I print sections to take out to the field?

A: Yes, most folks print the key procedures and wiring traces, stick them in a binder, and keep the laptop clean and safe.

Safety Note

Always lock out the machine, bleed off hydraulic pressure, and verify everything’s down and blocked before you crawl underneath or near moving parts.

Case Axial-Flow 9250 Tier 4B Final Combine Index:

• Contents
• INTRODUCTION
• Engine – 10
• Main gearbox and drive – 14
• Power coupling – 19
• Transmission – 21
• Front axle system – 25
• Rear axle system – 27
• Hydrostatic drive – 29
• Brakes and controls – 33
• Hydraulic systems – 35
• Steering – 41
• Wheels – 44
• Tracks and track suspension – 48
• Cab climate control – 50
• Electrical systems – 55
• Product feeding – 60
• Threshing – 66
• Separation – 72
• Residue handling – 73
• Cleaning – 74
• Crop storage / Unloading – 80
• Platform, cab, bodywork, and decals – 90
• SPECIAL TOOL INDEX
• ELECTRICAL SCHEMATIC – 51446765
• HYDRAULIC/HYDROSTATIC SCHEMATIC – 51586253

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