Part of the John Deere Repair Manuals.
This 676-page John Deere 4045 Technical Manual (OEM #CTM220) covers the full 4045, 6068 diesel engine lineup, walking you through electronic fuel and control system repair from teardown to final adjustment. Inside you'll find wiring diagrams with pin-level detail, a full diagnostics section running observable and trouble-code tests, plus a specifications block covering repair and diagnostic values side by side. You get glow plug torque at 15 N-m, pre-filter mounting bracket cap screws at 73 N-m, and fuel transfer pump cap screws at 30 N-m, numbers pulled straight from the factory table, not a forum thread. No more guessing which trouble code corresponds to which sensor circuit on your engine. This PDF is bookmarked and searchable, so you can jump straight to the diagnostics or specifications section, search any spec by keyword, and get back under the hood with the right number the first time.}
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 2-4 | |
| General | 5-24 | Safety |
| Repair and Adjustments | 25-80 | Electronic Fuel System Repair and Adjustments, Electronic Engine Control Repair and Adjustment |
| Theory of Operation | 81-116 | Electronic Fuel System Operation, Electronic Control System Operation |
| Diagnostics | 117-604 | Observable Diagnostics and Tests, Trouble Code Diagnostics and Tests |
| Tools | 605-618 | Electronic Fuel/Control System Repair Tools and Other Materials, Diagnostic Service Tools |
| Specifications | 619-668 | Repair Specifications, Diagnostic Specifications |
Documents This Manual Refers To
The manufacturer cites these publications by number. We carry them:
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Coolant Temperature High-Most Severe | CTM331 | p. 2 |
| Glow Plug | 15 N•m (11 lb-ft) | p. 621 |
| Pre-filter Mounting Bracket-to-Cylinder Head Cap Screws Torque | 73 N•m (53.8 lb-ft) | p. 623 |
| High Pressure Fuel Pump Gear Nut Torque | 68 N•m (50.1 lb-ft) | p. 623 |
| Flow Damper Torque | 176 N•m (130 lb-ft) | p. 624 |
| Injector Solenoid Wire Retaining Nut Torque | 2 N•m (1.5 lb-ft) (18 lb-in.) | p. 624 |
| Fuel Rail Pressure Sensor Torque | 98 N•m (72 lb-ft) | p. 625 |
| Glow Plug Torque | 15 N•m (11 lb-ft) | p. 625 |
| Minimum Fuel Transfer Pump Pressure - Cranking | 30 kPa (0.3 bar) (4.4 psi) | p. 627 |
| Minimum Fuel Rail Pressure - Running (Low Idle) | 35 MPa (350 bar) (5076 psi) | p. 627 |
| Combines | ||
| Engine Coolant Temperature (ECT) Most Severe Temperature | Exceeds 120°C (248°F) | p. 633 |
| OEM Engines | ||
| Fuel Transfer Pump Cap Screws Torque | 30 N•m (22 lb-ft) | p. 623 |
