AGCO 320D, 320DS, 420D, 420DS, 420DW, 420DWI, 620D, 620DS, 634DS Sisu Engine Workshop Manual

$31.00

What’s Included

Engines Workshop Manual 114 Pages

Technical Details

Brand AGCO
Models Covered SISU 320D, 320DS, 420D, 420DS, 420DW, 420DWI, 620D, 620DS, 634DS
Machine Type Engine
Documentation Workshop Manual
Language English
Format PDF
SKU: 354756 Category:
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Overview

The AGCO Sisu 320D, 320DS, 420D, 420DS, 420DW, 420DWI, 620D, 620DS and 634DS Engines Workshop Service Repair Manual provides technical information for servicing, inspecting and repairing these AGCO SISU diesel engines. This 114-page English-language workshop publication covers the 320, 420, 620 and 634 engine families, which share many construction features and repair procedures. Differences affecting individual engine types are identified in the manual’s technical data and repair instructions.

The documentation provides workshop repair guidance, engine technical data, measurement requirements, special tool references and information about engine component construction. Technical coverage includes the different cylinder-head arrangements used across the engine families, inlet and exhaust port configurations, valve positioning and component interchangeability. The manual also addresses workshop preparation, repair precautions and engine running-in requirements following repair work.

Safety: Read the safety instructions at the beginning of the workshop manual before starting repair operations. Ensure that the necessary tools, replacement parts and accessories are available before beginning the work.

Notice: Workshop measurements are expressed in millimetres and apply at a component temperature of +20°C unless otherwise specified. Although the engine families share many repair procedures, engine-specific differences must be checked in the applicable technical data and repair instructions.

Table of Contents

AGCO Sisu 320D, 320DS, 420D, 420DS, 420DW, 420DWI, 620D, 620DS, 634DS Manual

  • 01. Workshop Safety and Repair Preparation
    • Workshop Safety Instructions
    • Preparation Before Starting Repair Work
    • Required Tools, Replacement Parts and Accessories
    • Special Workshop Service Tools
  • 02. Engine Types and Technical Data
    • AGCO SISU 320, 420, 620 and 634 Engine Families
    • Engine Construction and Shared Repair Procedures
    • Engine-Type Differences Affecting Repair Work
    • Engine Technical Data and Repair Measurements
    • Metric Measurement Requirements
    • Measurement Temperature Reference – +20°C
  • 03. Cylinder Head Construction and Components
    • 320 and 420 Engine Cylinder Head Arrangement
    • 620 and 634 Engine Cylinder Head Arrangement
    • Cylinder Head Interchangeability
    • Cylinder Inlet and Exhaust Ports
    • Inlet and Exhaust Valve Arrangement
    • Cylinder Head Thermal Load Distribution
  • 04. Workshop Repair Instructions and Engine Run-In
    • Common Repair Instructions for Related Engine Types
    • Engine-Specific Technical Differences
    • Use of Special Workshop Tools
    • Engine Running-In After Repair

Cylinder Head Interchangeability and Engine Construction

The AGCO SISU 320 and 420 engines use a single cylinder head, while the 620 and 634 engines have two cylinder heads. According to the supplied workshop information, the cylinder heads used on the 620 and 634 engines are interchangeable with each other and with the cylinder head on the 320 engine. This shared construction is one reason many workshop repair instructions apply across the engine families.

Each cylinder has its own inlet and exhaust ports arranged on opposite sides of the cylinder head. A cooler inlet valve is positioned between the hot exhaust valves to help balance thermal loading. When servicing these components, consult the relevant engine-specific technical data for any differences affecting repair work.

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AGCO Sisu 320, 420, 620, 634 Engines Workshop Repair Service Manual
AGCO 320D, 320DS, 420D, 420DS, 420DW, 420DWI, 620D, 620DS, 634DS Sisu Engine Workshop Manual

$31.00

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