Part of the John Deere Repair Manuals.
This is the John Deere Component Technical Manual for the 4045 (4.5L) and 6068 (6.8L) PowerTech diesels with electronic fuel systems - the CTM the dealer tech has open on the bench. It covers the high pressure common rail fuel system end to end: pump removal and timing, injector service, ECU mounting and connector repair, plus full theory of operation for the HP pump, turbo, CAN bus and every sensor on the engine. You get the complete DTC list with Service ADVISOR diagnostic procedures, ECU replacement steps, torque specs for the fuel-system fasteners plus the standard metric and inch torque charts, and 12V/24V ECU wiring diagrams for both displacements. If your 4045 or 6068 is deratied, smoking or throwing codes, the answer is in here.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 69-112 | Engine ID, Fuel/Oil/Coolant Specs, Storage |
| Fuel System - Repair and Components | 113-234 | Fuel Injection, ECU Mounting, Connector Repair |
| Fuel System and Engine Control - Theory of Operation | 235-330 | HP Pump Operation, Turbocharger, CAN, Sensors |
| Diagnostics | 469-581 | DTC List, Service ADVISOR, ECU Replacement |
| Tools and Other Materials | Special Tools, Lubricants, Sealants | |
| Specifications | 1419-1426 | Torque Values, Application and Derate Specs |
| Wiring Diagrams | 1427-1507 | 4.5L / 6.8L 12V and 24V ECU Wiring Diagrams |
