John Deere PowerTech Plus 4.5L & 6.8L Diesel Engines 2004-2006 Technical Manual

Covers 4045HF475, 4045HF485, 6068HF475, 6068HF485 diesel engines. Details base engine operation, troubleshooting, and specifications for optimal performance. PN CTM104

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Document Details

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Document Number / Seller:
28784 / Michael Rogers
File Size:
17.33 MB
File Type:
PDF
Language:
English
Pages:
742
Printable:
Yes
Category:
Diesel Engine
Last updated / verified
May 23, 2025

Models Covered & Key Technical Specifications

John Deere PowerTech Plus™ 4.5L & 6.8L Diesel Engines (CTM104) – 2004-2006 Technical Manual John Deere PowerTech Plus™ Diesel Engines (CTM104) | Base Engine Module.

  • Published Enclosure Specs: 742 pages provides comprehensive coverage for all base engine systems and components.
  • Measured Addressable Resolution: 17.3304 MB file size ensures detailed diagrams and service information are readily accessible.
  • Approved Clamp Forces: Manual includes specific torque values for critical components, ensuring proper assembly.
  • Reference Spacing Data: Documentation details procedures for engine rebuild, including disassembly and assembly sequences.
  • Fundamental Electrical Load: Covers troubleshooting, diagnostics, and specifications for engine operation.
  • Universal Footprint Data: Service information includes fuel system, cooling system, lubrication, and starting/charging system details.

Professional Workshop Service Manual & Technical Specifications

Essential Repair Field Manual: John Deere PowerTech Plus™ 4.5L & 6.8L Diesel Engines (CTM104) Troubleshooting-Index

Asset-ID: CTM104 (27JAN06) // Machine-Range: 2004-2006 // Model-Portfolio: 4045HF475, 4045HF485, 6068HF475, 6068HF485 Logic // Technical-details: Diesel Engine

Specification Technical-Path Calibration-Spec
Engine Overhaul Repair and Adjustments Cylinder Head and Valves
Fuel System Fuels, Lubricants and Coolants Engine Identification and Application Charts
Lubrication System Engine Rebuild Theory of Operation

Technical chapters are organized around key service areas:

Group 010—Engine Rebuild

This section provides detailed guidelines for engine overhaul, including repair stand procedures and disassembly sequences.

Group 020—Cylinder Head and Valves (Two-Valve Head Engines)

Covers procedures for checking and adjusting valve clearance, measuring valve lift, and servicing the cylinder head.

Group 021—Cylinder Head and Valves (Four-Valve Head Engines)

Details procedures for four-valve head engine adjustments, including valve lift measurement and inspection.

Group 030—Cylinder Block, Liners, Pistons and Rods

Provides instructions for disassembling, inspecting, and measuring critical engine components within the cylinder block assembly.

Group 040—Crankshaft, Main Bearings and Flywheel

Covers inspection and servicing of the crankshaft, main bearings, and flywheel for optimal engine performance.

FAQ

What **documented** safety precautions are in this manual? keyboard_arrow_down

115 N•m torque specification is required for attaching adapters to the engine repair stand.

Confirm the **precise** lubrication requirements for the engine. keyboard_arrow_down

3100 grams of fuel lubricity, as measured by ASTM D6078, must be met for optimal performance.

What **tools** are needed for proper testing parameters? keyboard_arrow_down

JDG1571 or JDE81-4 Timing Pin is essential for setting the engine to TDC compression stroke for valve adjustments.

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The comprehensive coverage of engine components and maintenance tips is impressive. Customer support was quick to respond to my questions, making the whole process seamless. Enjoyed the fast download!
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This manual is a must-have for anyone working with John Deere diesel engines. The detailed sections make repairs straightforward. I had a smooth download process and received the link promptly via email. Highly recommend!