Case 5140-7140 Series Axial-Flow Combine Service Training Manual

These Axial-Flow combines spend their lives in dust, heat, and long days in the field, so when something acts up, you need to understand why before you start swapping parts. This service training manual is what we use to build that diagnostic mindset—how the systems interact, what normal behavior looks like, and how to think through a fault step by step. For example, if the engine derates and the SCR warning comes on during harvest, this book helps you trace whether you’re dealing with a sensor, dosing issue, or a deeper airflow problem, instead of just clearing codes and hoping.

Applications & Use Cases

• Understand system theory for engine, emissions, and air systems so you can reason through odd symptoms.
• Train new techs to trace and isolate faults instead of jumping straight to major component replacement.
• Refine your approach to verifying repairs, so problems don’t come back halfway through the season.
• Learn best practices for inspecting, routing, and sealing hoses, lines, and harnesses in harsh field conditions.
• Use it as a reference when explaining to operators why failures happened and how to avoid repeat issues.

FAQ

Q: Is this useful in the field, or only in a classroom?

A: It’s written for training, but the concepts transfer directly to real machines, helping you structure your troubleshooting on any job.

Q: Can I use a digital copy on a tablet in the shop?

A: Yes, most techs keep a digital version for quick searching, then print key pages or diagrams they want beside the machine.

Safety Note

Always lock out, block up, and depressurize systems before applying any diagnostic or service practices from this manual.

Case 5140-7140 Series Axial-Flow Combine Index:

Workbook
General Info
Acronyms
Mid-Range
01 – Introduction
11 – Engine 9L
13 – SCR System
14 – Air Compressor
25 – Ground Drive – Brakes
27 – PTO Gearbox
28 – Hydro – how it works
29 – Hydrostatic Drive
35 – General Hydraulics
39 – Hydraulic Schematic
40 – Pro700 Software Loading
42 – Configuration
51C – Connector Guide
53D – Electrical Schmatics
55D – General Electrical
56 – How to use diagnostics
57 – Fault Codes
58 – HVAC
60 – Grain Loss
62 – Feeder Operations
66 – Threshing
67 – Cleaning / Residue
74 – Unloading
80 – Auto Crop Settings
Header
Draper Header
01 – Draper Operation
39 – Hydraulic Schmatics
53 – Electrical Schematics
Corn Header

CNH