Motores 3408 - 3412 heui

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Service Training
Meeting Guide 672 SESV1672-01 April 1997

TECHNICAL PRESENTATION

3408E/3412E HEUI FUEL SYSTEM
TO LUBE SYSTEM HEUI HYDRAULIC TEMPERATURE SENSOR OIL PRESSURE SENSOR COOL DOWN CIRCUIT
FLUID MANIFOLD HYDRAULIC PASSAGE

COLD START OIL RESERVOIR

OIL FILTER

HYDRAULIC SUPPLY PUMP GROUP

FUEL TEMPERATURE SENSOR

HYDRAULIC PRESSURE SENSOR

FLUID MANIFOLD HYDRAULICPASSAGE

OIL COOLER

PUMP CONTROL VALVE FUEL TRANSFER PUMP PRIMARY FUEL FILTER WATER SEPARATOR OIL SUMP

ECM

HEUI

LUBE OIL PUMP

SECONDARY FUEL FILTER

PRESSURE REGULATING VALVE

FUEL TANK

3408E/3412E ENGINE CONTROLS
HYDRAULIC ELECTRONIC UNIT INJECTION (HEUI)

3408E/3412E ENGINE CONTROLS
HYDRAULIC ELECTRONIC UNIT INJECTION (HEUI) MEETING GUIDE 672 SLIDES AND SCRIPT
AUDIENCELevel II - Service personnel who understand the principles of engine systems operation, diagnostic equipment, and procedures for testing and adjusting.

CONTENT
This presentation is designed to prepare a service technician to identify the components, explain their function, and service the 3408E/3412E Hydraulic Electronic Unit Injection (HEUI) engines in all current machine and industrialapplications.

OBJECTIVES
After learning the information in this presentation, the serviceman will be able to: 1. locate and identify the major components in the 3400 HEUI system; 2. explain the functions of the major components in the 3400 HEUI system; 3. trace the flow of oil through the engine hydraulic system; 4. trace the flow of fuel through the fuel system; and 5. trace the flow of currentthrough the engine electrical system.

PREREQUISITES
Interactive Video Course "Fundamentals of Mobile Hydraulics" Interactive Video Course "Fundamentals of Electrical Systems" Programmed Instruction Course "Basic Electricity" STMG 546 "Graphic Fluid Power Symbols" TEVR9001 TEVR9002 SEBV0534 SESV1546

Prior training in systems operation and testing and adjusting procedures for the 3408C/3412Cengines should be completed before participating in this training session. Additionally, the participants should have PC skills and have completed introductory training in Windows® software.

Estimated Time: 8 Hours Visuals: 138 (2 X 2) Slides Serviceman Handouts: 8 Drawings/Data Sheet Form: SESV1672-01 Date: 4/97
© 1997 Caterpillar Inc.

STMG 672 4/97

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SUPPLEMENTARY TRAININGMATERIAL
Video Tape "3408E/3412E HEUI Service Introduction" Brochure "Caterpillar 3408E and 3412E Engines" ESTMG "Introduction to Electronic Technician" Brochure "Caterpillar Electronic Technician" Wall Chart "HEUI Fuel System" (small) Wall Chart "HEUI Fuel System" (large) Wall Chart "HEUI Engine" Training Book "Easy Windows, 3.1 Edition" by Shelly O'Hara Available from: Prentice Hall ComputerPublishing 0-88022-985-3 Attn: Order Dept. 201 W. 103rd St. Indianapolis, IN 46290 Reference Book "Field Guide to Microsoft Windows 95" by Stephen L. Nelson Available from: Microsoft Press International at Fax No. (206) 936-7329 Also available from bookstores Training Book "Windows 95 for Dummies" Published by IDG Books IDG Books World Wide Website: http://www.idgbooks.com Available from bookstoresSEVN3550 LEDH6055 LEPV5155 NEHP5614 LEWH6116 LEWH6266 LEWH6740

RECOMMENDED HEUI TOOLING
Caterpillar Electronic Technician Single Use License Caterpillar Electronic Technician Annual Data Subscription (All Engines and Machines) Communication Adaptor PC to Communication Adaptor Cable Communication Adaptor to Machine Cable (combined ATA and CDL Data Link cable; replaces 7X1570 and 7X1412) DigitalMultimeter (Fluke 87) Cable Probes Hydraulic Unit Injector Puller Hydraulic Unit Injector Sleeve Removal Wrench JERD2124 JERD2129 7X1700 7X1425 139-4166 9U7330 7X1710 131-3921 111-5051

STMG 672 4/97

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REFERENCES
Troubleshooting Manual "3408E Engine--631E - 637E Wheel Tractor-Scrapers" Troubleshooting Manual "3412E Engine--24H Motor Grader" Troubleshooting Manual "3408E Engine--834B/836...
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