Case Magnum 340, 380, 400 Rowtrac AFS Connect Tractor Service Manual

These Magnum Rowtrac AFS Connect tractors spend their lives pulling big tillage gear, planters, and grain carts in dusty, high-load field conditions. This service manual is what I’d keep open when I’m chasing a drivetrain complaint, an AFS control issue, or putting a major component back together after a failure. For example, if the tractor starts throwing transmission warnings under load, this manual guides you through how to trace the fault from the cab display, verify pressures and signals, then decide if you’re dealing with a sensor, wiring, or internal damage before you start tearing iron apart.

Applications & Use Cases

• Systematic diagnostics for engine, transmission, and driveline faults so you fix the root cause, not just the symptom.
• Step-by-step disassembly/assembly logic to strip, inspect, and re‑seal components without missing hidden fasteners or seals.
• AFS Connect troubleshooting to isolate whether a problem is in the display, harness, sensors, or hydraulic controls.
• Adjustment and calibration guidance for linkages, clutches, and controls after repairs so everything engages smoothly.
• Planned maintenance workflow to verify wear points, route hoses and wiring correctly, and document what was done.

FAQ

Q: Can I use this on a laptop or tablet in the shop?

A: Yes, it’s well suited for digital use so you can zoom diagrams and search procedures while working at the machine.

Q: Is it worth printing sections?

A: Many techs print the pages for the job they’re on, mark notes or measurements, then keep them with the work order.

Safety Note

Always follow the manual’s lockout, support, and depressurization steps before working under or around raised or pressurized components.

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

CNH

Magnum™ 250 AFS Connect™
Magnum™ 280 AFS Connect™
Magnum™ 310 AFS Connect™
Magnum™ 340 AFS Connect™
Magnum™ 380 AFS Connect™
Magnum™ 400 AFS Connect™
Magnum™ 340 Rowtrac™ AFS Connect™
Magnum™ 380 Rowtrac™ AFS Connect™
Magnum™ 400 Rowtrac™ AFS Connect™
Tractor