Case Magnum 340, 380, 400 Rowtrac AFS Connect Tractor Service Manual (92648350) (October 2024)

These Magnums are big row-crop and tillage horses, usually living in dust, mud, and long days on AFS-guided work. This service manual is about how to trace a problem in a logical order so you don’t just throw parts at it. Say the tractor won’t hold speed under load—you’d follow the steps to check demand signals, verify transmission pressures, inspect sensors and wiring, and only then decide what actually needs replacing.

Applications & Use Cases

• Trace an electrical fault by following the factory test sequence, so you can isolate whether it’s a bad sensor, harness, or controller before you order parts.
• Check hydraulic issues—slow remotes, weak hitch—by walking through pressure tests, valve checks, and leak-down procedures instead of guessing.
• Verify transmission complaints like harsh shifts or no movement by using the guided diagnostics, then test and align linkages or calibrations as required.
• Inspect and route hoses, looms, and lines correctly after a repair so you don’t rub through something two weeks later.
• Bleed fuel and hydraulic systems the way the techs do, so you can restart cleanly after filter changes or line work.

FAQ

Q: Is this a searchable PDF or just page images?

A: It’s typically a searchable PDF, so you can jump to sections and run keyword searches on a laptop or tablet.

Q: Can I print just the pages I need for the shop?

A: Yes, most folks print the procedures for the job they’re on, mark them up, and keep the main file on a device in the office or truck.

Safety Note

Always depressurize hydraulics and verify all implements are fully supported before you start loosening any fittings or lines.

Case Magnum 340, 380, 400 Rowtrac AFS Connect Tractor Index:

• Contents
• INTRODUCTION
• Engine – 10
• Power coupling – 19
• Transmission – 21
• Four-Wheel Drive (4WD) system – 23
• Front axle system – 25
• Rear axle system – 27
• Power Take-Off (PTO) – 31
• Brakes and controls – 33
• Hydraulic systems – 35
• Hitches, drawbars, and implement couplings – 37
• Frames and ballasting – 39
• Steering – 41
• Wheels – 44
• Tracks and track suspension – 48
• Cab climate control – 50
• Electrical systems – 55
• Accessories – 88
• Platform, cab, bodywork, and decals – 90
• SPECIAL TOOL INDEX

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