John Deere Engines Dual Fuel 6076AFD Series 400 CTM93 EN Technical Manual PDF

Description

John Deere Engines Dual Fuel 6076AFD Series 400 CTM93 EN Technical Manual PDF

DESCRIPTION:

John Deere Engines Dual Fuel 6076AFD Series 400 CTM93 EN Technical Manual PDF

This manual is written for an experienced technician. Essential tools required in performing certain service work are identified in this manual and are recommended for use. Live with safety: Read the safety messages in the introduction of this manual and the cautions presented throughout the text of the manual.

• This is the safety-alert symbol. When you see this symbol on the machine or in this manual, be alert to the potential for personal injury. Use this component technical manual in conjunction with the machine technical manual. An application listing in the introduction identifies product-model/component type-model relationship.
• See the machine technical manual for information on component removal and installation, and gaining access to the components. This manual is divided in two parts: repair and operation and tests. Repair sections contain necessary instructions to repair the component. Operation and tests sections help you identify the majority of routine failures quickly.
• Information is organized in groups for the various components requiring service instruction. At the beginning of each group are summary listings of all applicable essential tools, service equipment and tools, other materials needed to do the job, service parts kits, specifications, wear tolerances, and torque values. Component Technical Manuals are concise service guides for specific components. Component technical manuals are written as stand-alone manuals covering multiple machine applications.

IMAGES PREVIEW OF THE MANUAL:

TABLE OF CONTENTS:

John Deere Engines Dual Fuel 6076AFD Series 400 CTM93 EN Technical Manual PDF

Group 00—Safety
General . . . . . . . . . . . . . . . . . . . . . . . . . . 00-1
Group 01—General Information
Unified Inch Bolt and Cap Screw Torque
Values . . . . . . . . . . . . . . . . . . . . . . . . . 01-1
Metric Bolt and Cap Screw Torque
Values . . . . . . . . . . . . . . . . . . . . . . . . . 01-2
Engine Model Designation . . . . . . . . . . . . . . 01-3
Engine Serial Number Plate Information . . . . . 01-4
Group 10—Dual Fuel System Introduction
About the Dual Fuel System . . . . . . . . . . . . 10-1
General Dual Fuel OEM Engine
Specifications . . . . . . . . . . . . . . . . . . . . . 10-1
Natural Gas Recommendations . . . . . . . . . . 10-2
System Power Requirements . . . . . . . . . . . . 10-2
ECU Environmental Restrictions . . . . . . . . . . 10-2
Glossary of Terms . . . . . . . . . . . . . . . . . . . 10-3
Component Serial Number Location
Electronic Control Unit . . . . . . . . . . . . . . . 10-6
NG Governor . . . . . . . . . . . . . . . . . . . . . 10-6
NG Rotary Actuator . . . . . . . . . . . . . . . . . 10-6
Link Controller . . . . . . . . . . . . . . . . . . . . 10-7
Group 20—Dual Fuel System Theory of
Operation
Function of System Components
Major Components Used . . . . . . . . . . . . . 20-1
Link Controller . . . . . . . . . . . . . . . . . . . . 20-1
Engine Control Unit . . . . . . . . . . . . . . . . . 20-2
NG Governor . . . . . . . . . . . . . . . . . . . . . 20-2
NG Low Pressure Sensor . . . . . . . . . . . . . 20-3
NG Pressure Regulator . . . . . . . . . . . . . . 20-4
NG Metering Valve . . . . . . . . . . . . . . . . . 20-4
NG Rotary Actuator . . . . . . . . . . . . . . . . . 20-5
NG Shut-off Solenoid . . . . . . . . . . . . . . . . 20-5
Intake Air Temperature Sensor . . . . . . . . . 20-6
Page
Function of System Components—Continued
Auxiliary Magnetic Speed Sensor . . . . . . . . 20-6
Transient Voltage Protection (TVP) Module . 20-7
System Operation
Engine Start-up . . . . . . . . . . . . . . . . . . . 20-8
Fuel Selection Modes . . . . . . . . . . . . . . . 20-9
Engine Shut Down . . . . . . . . . . . . . . . . 20-11
Aftercooler System with External Heat
Exchanger . . . . . . . . . . . . . . . . . . . . 20-12
Diagnostic Features
Lamps and Connectors . . . . . . . . . . . . . 20-14
Group 30—Dual Fuel System Diagnostics
Before You Start Diagnostics . . . . . . . . . . . . 30-1
Dual Fuel System Schematic
Wiring Diagram and Component
Location Drawing Legend . . . . . . . . . . . 30-2
Functional Section Legend . . . . . . . . . . . . 30-3
Functional Schematic . . . . . . . . . . . . . . . . 30-4
Dual Fuel System Wiring Diagram
Control Panel Harness (WD1) . . . . . . . . . . 30-6
Link Controller Harness (WD2) . . . . . . . . . 30-8
Pump Harness (WD3) . . . . . . . . . . . . . . . 30-9
Wiring Harness and Component
Location Drawing . . . . . . . . . . . . . . . . 30-10
Diagnose Malfunctions of Dual Fuel
System . . . . . . . . . . . . . . . . . . . . . . . . 30-11
NG Governor Speed Setpoint
Requirements . . . . . . . . . . . . . . . . . . . . 30-27
ECU Torque Curve Chart . . . . . . . . . . . . . 30-28
Group 40—Dual Fuel System Repair
Service Equipment and Tools . . . . . . . . . . . . 40-1
Other Material . . . . . . . . . . . . . . . . . . . . . . 40-1
Specifications . . . . . . . . . . . . . . . . . . . . . . 40-1
Disconnect and Connect Natural Gas
Supply . . . . . . . . . . . . . . . . . . . . . . . . . 40-2
Control Panel
Replace Lamps . . . . . . . . . . . . . . . . . . . 40-3
Remove and Install Switches . . . . . . . . . . 40-3
Engine Control Unit (ECU)
Remove and Install . . . . . . . . . . . . . . . . . 40-4
Natural Gas Governor
Remove and Install . . . . . . . . . . . . . . . . . 40-5
Link Controller
Remove and Install . . . . . . . . . . . . . . . . . 40-6
Transient Voltage Protector (TVP) Module
Remove and Install . . . . . . . . . . . . . . . . . 40-7
Natural Gas
Replace Filter . . . . . . . . . . . . . . . . . . . . . 40-7
Remove and Install Low Pressure
Sensor . . . . . . . . . . . . . . . . . . . . . . . . 40-8
Remove and Install Shut-off Solenoid
Valve . . . . . . . . . . . . . . . . . . . . . . . . . 40-9
Remove and Install Regulator . . . . . . . . . 40-10
Remove and Install Metering Valve . . . . . 40-12
Metering Valve
Remove and Install Linkage . . . . . . . . . . 40-13
Remove and Install Actuator . . . . . . . . . . 40-15
Flywheel Speed Sensor
Remove and Install . . . . . . . . . . . . . . . . 40-16
Remove and Install
Charge Air Temperature Switch . . . . . . . . 40-16
Link Wire Harness
Remove and Install . . . . . . . . . . . . . . . . 40-17
Operator’s Panel Wire Harness
Remove and Install . . . . . . . . . . . . . . . . 40-19
Auxiliary Water Pump
Remove and Install . . . . . . . . . . . . . . . . 40-20
External Heat Exchanger Orifice Vent
Remove and Install . . . . . . . . . . . . . . . . 40-22
Group 50—Dual Fuel System Adjustments
Service Equipment and Tools . . . . . . . . . . . . 50-1
Adjust
NG Governor Gain . . . . . . . . . . . . . . . . . 50-1
NG Regulator Outlet Pressure . . . . . . . . . . 50-2
NG Governor . . . . . . . . . . . . . . . . . . . . . 50-5
Index

PLEASE NOTE:

• This is the same manual used by the dealers to diagnose and troubleshoot your vehicle
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