John Deere Series 220 Diesel Engines Technical Manual

This Component Technical Manual (CTM3) covers recommended repair and adjustment procedures for John Deere 3 and 4TN Series Diesel Engines used in Lawn & Grounds Care and small Industrial products, and Series 220 Diesel Engines offered as OEM units. PN CTM3

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Document Details

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Document Number / Seller:
29441 / Amanda Harris
File Size:
11.06 MB
File Type:
PDF
Language:
English
Pages:
718
Printable:
Yes
Category:
Diesel Engine
Last updated / verified
Sep 30, 2025

Models Covered & Key Technical Specifications

John Deere Series 220 Diesel Engines Technical Manual: John Deere Diesel Engine 3TN66, 3TNA72, 3TN75, 3TN78, 3TNC78, 3TN82, 3TNA82, 3TN84, 4TN78T, 4TN82, 4TN84, 4TN100 - Maintenance, Diagnostics & Repair Chassis-Documentation

Conceptual-Layout: Diagnostic Catalog // Procedure-Type: Systematic Specification // Model-Portfolio: Series 220 Binder

  • Engine Specifications: Bore for 3TN66 is 66 mm (2.60 in.) establishes the standard cylinder diameter.
  • Technical Resolution Data: 10.4 - 12.7 kW (14 - 17 hp) signifies the minimum horsepower output Range.
  • Specific Temperature Range: For optimal operation, 71°C (160°F) defines the beginning opening temperature Threshold.
  • Essential Power Rating: 85 kg (187 lbs) -- represents the dry weight Threshold.
  • Advanced Memory Capacity: The starter motor requires Hitachi 0.8 kW for standard operation Benchmarks.
  • Core Speed Performance: Alternator current reaches Kokosan 20A, Nippondenso 35 or 40A Parameters.

Professional Workshop Service Manual & Technical Specifications

John Deere Series 220 Diesel Engines Technical Manual: John Deere Diesel Engine 3TN66, 3TNA72, 3TN75, 3TN78, 3TNC78, 3TN82, 3TNA82, 3TN84, 4TN78T, 4TN82, 4TN84, 4TN100 - Maintenance, Diagnostics & Repair Chassis-Documentation

Conceptual-Layout: Diagnostic Catalog // Procedure-Type: Systematic Specification // Model-Portfolio: Series 220 Binder

Fundamentally demanding...

Maintenance hierarchies are structured into the following chapters, covering a comprehensive range of engine systems and repair procedures.

Systems

This manual documents the various engine systems and components, providing detailed information on their operation, maintenance, and repair.

Procedures

Detailed procedures are provided for common repair and maintenance tasks, including disassembly, assembly, inspection, and testing.

Introduction

The introduction offers essential safety information, a guide to the manual's structure, and key specifications for quick reference.

Specifications

Extensive specifications are presented in tabular format, detailing dimensions, tolerances, torque values, and performance data for each engine model.

Technical Data

This section provides crucial technical data necessary for accurate diagnosis and repair, ensuring the engine operates optimally.

This document outlines torque specifications for critical components to ensure proper oscillation integrity.

FAQ

Specify the **applicable** lubrication requirements? keyboard_arrow_down

10.4 - 12.7 kW (14 - 17 hp) signifies the minimum horsepower output Range for the 3TN66 engine.

What is the **exact** testing parameters? keyboard_arrow_down

Kokosan 20A, Nippondenso 35 or 40A are the available alternator specifications for the 3TN66.

Calculate the **specific** diagnostic procedures? keyboard_arrow_down

0.20 mm (0.008 in.) is the standard clearance for valve guides on the 3TN66 engine.

What values **designated** fluid capacity requirements? keyboard_arrow_down

18 N•m (160 lb-in.) is the torque specification for the rocker arm cover's special nut on the 3TN66.

Assess the **critical** component identification? keyboard_arrow_down

0.05 mm (0.002 in.) or less is the standard cylinder head distortion for the 3TN66 engine.

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Reviews (4)

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Had a query about the manual, and the support team responded within hours. Very professional and helpful!
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The download process was seamless! I received the email with the download link almost instantly. Highly recommend!
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I appreciate how well-organized this manual is. The troubleshooting section has saved me a lot of time!
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This manual is a must-have for anyone working on John Deere Series 220 engines. The detailed diagrams and specifications are incredibly helpful.