Complete Diagnostics Technical Manual with electrical wiring diagrams for John Deere Tractors 2WD / MFWD 7210, 7410, 7510, with all the workshop information to maintain, diagnose, and service like professional mechanics.

John Deere 7210, 7410, 7510 Tractors workshop Diagnostics & Tests technical manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.

tm1654 - 7210, 7410 and 7510 Tractors Technical Manual (Operation & Tests).pdf

Total Pages: 1,614 pages
File Format: PDF (bookmarked, ToC, Searchable, Printable)
Language: English

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MAIN SECTIONS
 Foreword
   Safety Information
      Safety
   General Information
      Operational Checkout
      General Reference Information
      Test Equipment Calibration
   Diagnostic Trouble Codes
      CCU Code Diagnostics
      HCU Code Diagnostics
      LHP Code Diagnostics
      RCU Code Diagnostics
   Observable Symptoms
      Brakes
      Operator Station
      Hydraulics
   Engine
      General Information
   Fuel, Air Intake and Engine Cooling Systems
      Fuel/Air/Cooling System Theory of Operation
   Electrical System
      Diagnostic Codes and Addresses
      Electrical System Information
      System Diagrams
      System Diagram References
      System Functional Schematic (CAB)
      System Functional Schematic (OOS)
      Wiring Harnesses
      Sub-System Diagnostics
      Starting, Power and Charging Circuit Diagnostics
      Wiper and Seat Circuit Diagnosis
      Ground Fault Circuit Interrupter Diagnosis
      Air Quality System (AQS) Diagnosis
      Radio, Horn, Dome Lamp and Multi-Function Control Circuit
      Lighting Circuit Diagnosis
      Accessory Connector and Lighter Circuit Diagnosis
      Hitch Control Diagnosis
      CCU Diagnosis
      Differential Lock Circuit
      MFWD Circuit
      Rear PTO Circuit
      Wheel and Radar Speed Circuit
      Engine Speed Sensor Circuit
      Fuel Level Sender Circuit
      System Voltage Circuit
      Engine Coolant Temperature Sensor
      Hydraulic Oil Temperature Circuit
      Engine Oil Pressure Sensor Circuit
      Transmission Oil Pressure Circuit
      Air Filter Restriction Sensor Circuit
      Transmission Oil Filter Restriction Sensor Circuit
      Hydraulic Oil Filter Restriction Sensor Circuit
      Sensor Excitation Power Circuit
      Engine Hours and Engine Starts
      Fuel Timing Advance Circuit
      Display Modules
      PowrQuad Control Circuit
      ROW-TRAK Control Circuit
      CCD Communication
      Calibration
      CCU Calibration
      Performance Monitor Calibration and Diagnostic Tool
      Battery References
   Transmissions
      Operational Checks
      Transmission And Reverser Diagnosis
      PowrQuad PowrQuad is a trademark of Deere & Company.
Diagnosis
      Reverser Control Unit (RCU)
      SyncroPlus SyncroPlus is a trademark of Deere & Company.
Diagnosis
      Theory Of Operation
      PowrQuad PowrQuad is a trademark of Deere & Company.
Theory of Operation
      Reverser Control Unit (RCU) Theory of Operation
      SyncroPlus SyncroPlus is a trademark of Deere & Company.
Theory of Operation
   Drive Systems
      Operational Checks
      Drive System Diagnosis
      Adjustments
      Theory of Operation
   Steering and Brakes
      Steering and Brakes Theory of Operation
   Hydraulic System
      Operational Checks
      Hydraulic System Diagnosis
      Tools and Safety
      Diagnostic Guidelines
      Preliminary Checks
      Hydraulic Diagnosis
      Additional Troubleshooting Information
      Hitch Electrical Diagnosis
      HCU Additional Tests
      ROW-TRAKROW-TRAK is a trademark of Deere & Company
Tests
      Calibrations and Adjustments
      Hitch Calibrations and Adjustments
      ROW-TRAK™ Calibrations and Adjustments
      Theory of Operation
      Hydraulic System Diagrams
      Hydraulic Control Circuit
      Steering Circuit
      Selective Control Valves (SCV)
      Hitch
      Electro-Hydraulic Depth Control
      Headland Management Systems (HMS)
      Hitch Dampening
   Operator Station
      Operational Checks
      Air Conditioning System Diagnosis
      Air Conditioning Theory of Operation
   Dealer Fabricated Tools

tm1654 - 7210, 7410 and 7510 Tractors

Table of Contents

Foreword

Section 205: Safety Information

Group 05: Safety

Recognize Safety Information

Prevent Machine Runaway

Handle Fluids Safely—Avoid Fires

Prevent Battery Explosions

Prepare for Emergencies

Handle Starting Fluid Safely

Prevent Acid Burns

Service Cooling System Safely

Handle Chemical Products Safely

Avoid High-Pressure Fluids

Park Machine Safely

Support Machine Properly

Wear Protective Clothing

Service Machines Safely

Work In Ventilated Area

Work in Clean Area

Remove Paint Before Welding or Heating

Avoid Heating Near Pressurized Fluid Lines

Illuminate Work Area Safely

Replace Safety Signs

Use Proper Lifting Equipment

Keep ROPS Installed Properly

Service Tires Safely

Avoid Harmful Asbestos Dust

Protect Against High Pressure Spray

Practice Safe Maintenance

Use Proper Tools

Dispose of Waste Properly

Live With Safety

Section 210: General Information

Group 05: Operational Checkout

Before You Start

Lighting Circuit Operation

Transmission Checks

Hydraulic System Checks

Hitch System Checks

Air Conditioning System Checks

Group 10: General Reference Information

Specifications

JT03412—Supplemental Pressure Test Kit

JT03413—Supplemental Flow Test Kit

JT03419—ORFS Fitting Kit

JT05406—Master Hydraulic Flow Test Fitting Kit

JT05469—Flowmeter Kit

JT05470—Agricultural Universal Pressure Test Kit

Required Test Fittings

List of Diagnostic Adapters— ORFS

Unified Inch Bolt and Cap Screw Torque Values

Metric Bolt and Screw Torque Values

JIC Hydraulic Symbols

Glossary of Terms

Group 15: Test Equipment Calibration

JDG282 Temperature Gauge Check

Calibration Check of Flow Meters

Method No. 1: Flow Meter (Main Pump Quick Check from SCV)

Method No. 2: Volume Check From Flow Meter

Pressure Gauge Calibration Checker

Section 211: Diagnostic Trouble Codes

Group CCU: CCU Code Diagnostics

CCU 001 - Fuel Level Sender Circuit

CCU 010 - Engine Coolant Temperature High

CCU 011 - Engine Coolant Temperature Very High

CCU 012 - Coolant Temperature Sensor / Circuit Open

CCU 013 - Coolant Temperature Sensor / Circuit Shorted

CCU 015 - Hydraulic Oil Temperature High

CCU 016 - Hydraulic Oil Temperature Very High

CCU 017 - Hydraulic Oil Temperature Sensor Circuit Open

CCU 018 - Hydraulic Oil Temperature Sensor Circuit Shorted

CCU 021 - Engine Oil Pressure Low (Pressure Switch)

CCU 026 - Transmission Oil Pressure Low

CCU 030 - Engine Air Filter Restricted

CCU 035 - Transmission Oil Filter Restricted

CCU 045 - System Voltage Too Low (Idle-to-1500 rpm)

CCU 046 - System Voltage Too Low (Above 1500 rpm)

CCU 047 - System Voltage Too High (Engine running)

CCU 050 - Hydraulic Oil Filter Restricted

CCU 067 - Power to Sensor Circuits has Failed

CCU 072 - Rear PTO Control Switch Failed

CCU 073 - Rear PTO Output Driver Circuit Failed (Driver Commanded ON)

CCU 075 - Rear PTO Speed Not Present After PTO ON

CCU 078 - Front PTO Switch OFF But Solenoid ON

CCU 079 - Front PTO Switch ON But Solenoid OFF

CCU 080 - Differential Lock Switch ON at Start-Up

CCU 081 - Differential Lock Circuit Failed During Operation

CCU 085 - MFWD Control Switch Error

CCU 086 - MFWD Circuit Fault With Switch OFF

CCU 093 - Clutch Cooling Driver Fault

CCU 094 - Fuel Advance Output Driver Circuit Failure

CCU 101 - Clutch Cooling Not Allowed On This Controller

CCU 102 - HMS Not Allowed On This Controller

CCU 103 - Hitch Is Preventing HMS From Being Enabled Because Towed Implement Mode Is Active

CCU 104 - Remote PTO Not Allowed On This Controller

CCU 105 - Self Cancelling Turn signals Not Allowed

CCU 106 - Stuck HMS Switch At Power Up

CCU 125 - Both Turn Signals Are Active On This Controller

Group HCU: HCU Code Diagnostics

HCU 022 - Battery Voltage Out of Range

HCU 027 - Calibration Not Successful

HCU 028 - Calibration Memory Failure

HCU 029 - Calibration Selected For Less Than 30 Seconds (Also Recalls “EOC” Message)

HCU 041 - Pressure Valve Solenoid Circuit

HCU 042 - Return Valve Solenoid Circuit

HCU 043 - Pressure Valve Solenoid Circuit

HCU 044 - Return Valve Solenoid Circuit

HCU 045 - Sensor Supply Voltage Out of Range

HCU 048 - Auxiliary Input Circuit Fault

HCU 049 - Raise/Lower Rocker Switch Circuit

HCU 050 - HCU Failure

HCU 052 - Draft Sensor Circuit

HCU 053 - Load/Depth Control Potentiometer Circuit

HCU 054 - Hitch Control Lever Potentiometer Circuit

HCU 055 - Hitch Position Feedback Sensor Circuit

HCU 056 - Raise Limit Control Potentiometer Circuit

HCU 057 - Rate-of-Drop Control Potentiometer Circuit

HCU 058 - External Raise/Lower Switch Circuit

HCU 060 - CCD Communication Line Failure

HCU 090 - Hitch Raise Disabled Due to Low Oil Level

Group LHP: LHP Code Diagnostics

LHP 022 - Battery Voltage Out of Range

LHP 027 - Calibration Not Successful

LHP 028 - Calibration Memory Failure or Never Calibrated

LHP 029 - Calibration Selected For Less Than 30 Seconds

LHP 045 - Sensor Supply Voltage Out of Range

LHP 050 - RowTrak Control Unit Failure

LHP 054 - Position Control Circuit

LHP 055 - Pivot Angle Circuit

LHP 056 - Response Rate Control Circuit

LHP 057 - Row Sensor Circuit

LHP 058 - Row Sensor Raise Circuit

LHP 059 - Row Sensor Lower Circuit

LHP 060 - CCD Communication Line Failure

LHP 141 - Extend Valve Solenoid Circuit

LHP 142 - Retract Valve Solenoid Circuit

LHP 143 - Extend Valve Solenoid Circuit

LHP 144 - Retract Valve Solenoid Circuit

Group RCU: RCU Code Diagnostics

RCU 015 - Detent Status Fault Detected

RCU 016 - Park Detected With Wheel Speed and Valid Direction

RCU 017 - Serial EEPROM Failure In Non-Critical Memory

RCU 019 - Reverse Lockout Input And Park Input

RCU 025 - Detent Solenoid Circuit Fault

RCU 027 - Enable Pressure Not Detected

RCU 029 - Enable Valve Stuck Open or Enable Pressure Switch Failed Open

RCU 031 - Enable Solenoid Valve Or FWD Or Rev Relay Circuit Fault

RCU 032 - In Park Without Valid Neutral

RCU 034 - Reverser Lever In Direction Too Long While In Park (Diagnostic Mode Only)

RCU 035 - Missing Neutral Message From CCU. Can Not Detect Proper State Of Neutral Switch

RCU 040 - Forward and Reverse Switches Are Open, But NN Switch Is Closed Or Transmission Enable Is High

RCU 041 - Forward and Reverse Switches Are Closed At The Same Time

RCU 042 - Forward Switch Is Closed, But NN Switch Is Open

RCU 043 - Reverse Switch Is Closed, But NN Switch Is Open

RCU 044 - Not-Neutral Relay Failed Open

RCU 045 - Direction Commanded With Enable Valve Off

RCU 047 - Valid Neutral Not Detected After Power Up

RCU 048 - System Voltage Below 8 Volts

RCU 050 - Shuttle Shift Detected Without Neutral Indication

RCU 051 - Direction Is Commanded, But FNR Valve Is Not In Neutral

RCU 052 - High Range Detected While In Reverse

RCU 053 - Reverser Lever Is In Neutral But FNR Valve Is Not In Neutral

RCU 054 - Wheel Speed Detected In Diagnostic Mode

RCU 055 - Enable Valve Stuck Closed (No Flow)

RCU 056 - Powered Up With Reverser Lever In Direction

RCU 057 - Transmission Enable Signal Low During Operation

RCU 058 - Start in Gear Circuit Failure

RCU 064 - Power Up-Recoverable Fault In Critical Memory

RCU 065 - Power Up-Recoverable Fault In Critical Memory. Controller Will Attempt Correction

RCU 067 - Neutral Switch Indicates Not Neutral Without Cause

Section 212: Observable Symptoms

Group 10: Brakes

Brakes Function Erratically

Group 30: Operator Station

Poor AM & FM Radio Reception or Electrical Noise

Group 70: Hydraulics

Grapple Valve Holds System Pressure Above Standby for Several Seconds

Section 220: Engine

Group 05: General Information

Engine Operation and Tests

Specifications

Fuel and Cooling System

Section 230: Fuel, Air Intake and Engine Cooling Systems

Group 25: Fuel/Air/Cooling System Theory of Operation

Fuel System

Engine Cooling System

Air Intake System

Section 240: Electrical System

Group 04: Diagnostic Codes and Addresses

Enter/Exit “Diagnostic” Mode

Clear Diagnostic Codes

Diagnostic Codes

CCU Diagnostic Code Numbers

HCU Diagnostic Code Numbers

LHP Diagnostic Code Numbers

RCU Diagnostic Code Numbers

CCU Addresses

CCU Addresses 13—21

CCU Address Numbers 22-37

CCU Address Numbers 38 - 99

HCU Addresses

LHP Addresses

PrF Addresses

RCU Addresses

Group 05: Electrical System Information

Service Equipment and Tools

Other Material

Specifications

Using Electrical Section

Wiring Diagram and Schematic Information

Electrical Schematic Symbols

Reading a System Functional Schematic

Reading a Wiring Diagram

Reading a Diagnostic Schematic

Visually Inspect Electrical System

Seven Step Electrical Test Procedure With probe light or multimeter.

Electronic Circuit

Understanding Electrical Vs Electronic Circuit Voltage Test Readings

Voltage Test

Electrical Circuit

Circuit Malfunctions

High Resistance Circuit

Open Circuit

Grounded Circuit

Shorted Circuit

Locations of Circuit Malfunctions

Troubleshooting High Resistance or Open Circuits

Troubleshooting a Grounded Circuit

Troubleshooting Shorted Circuits

Short Circuit

Intermittent Electronic Problems

Repairing Shorted Circuits

Group 10: System Diagrams

System Diagrams

Group 10A: System Diagram References

Ground Point Locations

Ground Stud

Wiper Ground

Component Identification Table

Component Identification Legend

Component Identification Legend

Component Identification Legend

Component Identification Legend

Component Identification Legend

Component Identification Legend

Group 10B: System Functional Schematic (CAB)

Legend For System Functional Schematics (Cab)

System Functional Schematic (Cab) SE1, SE2, SE3

System Functional Schematic (Cab) SE4, SE5

System Functional Schematic (Cab) SE6, SE7

System Functional Schematic (Cab) SE8

System Functional Schematic (Cab) SE9, SE10

System Functional Schematic (Cab) SE11

System Functional Schematic (Cab) SE13

Group 10C: System Functional Schematic (OOS)

Legend For System Functional Schematics (OOS)

System Functional Schematic (OOS) SE1, SE2, SE3, SE4

System Functional Schematic (OOS) SE5, SE6

System Functional Schematic (OOS) SE7, SE8

Group 10D: Wiring Harnesses

Fuse Panel (F1-F12)

Fuse Panel (F13-F20)

Fuse Panel (F21-F35)

Load Center Relays (K1-K5)

Load Center Relays (K6-K9)

Load Center Relays (K10-K18)

Diode Blocks (W2, W28) (V2—V3)

Cab Harness (W2)

Cab Harness

Cab Harness (W2)

Cab Harness (W2)

Open Operator Station Harness (W28)

Open Operators Station Harness (W28)

Engine Harness (W6)

Transmission Sensor Harness (W8)— PowrQuad PowrQuad is a trademark of Deere & Company.

Transmission Sensor Harness (W22)— SyncroPlus SyncroPlus is a trademark of Deere & Company.

Multi-Function Controls Harnesses (W15 & W16)

Roof Lights and Hitch Controls Harnesses (W11 & W14)

Air Suspension Seat and Mechanical Suspension Seat Harnesses (W25 & W26)

Front Floods and Convenience Outlet Harnesses (W13 & W17)

Cab Harness Routing and Component Location

Cab Harness Routing and Component Location

Open Operator Station Harness Routing/Component Location

Open operator Station Harness Routing and Component Locations

Transmission Sensor Harness— SyncroPlus SyncroPlus is a trademark of Deere & Company.

Harness Routing and Component Identification— PowrQuad PowrQuad is a trademark of Deere & Company. Transmission

Engine Harness Routing and Component Location

ROW-TRAK ROW-TRAK is a trademark of Deere & Company. Harness Routing and Component Identification

Group 15: Sub-System Diagnostics

Reference List

Group 15A: Starting, Power and Charging Circuit Diagnostics

Starting Circuit (SE1)

Starting Circuit (SE1)

Starting Circuit Operational Information

Starting Circuit Theory of Operation

Voltage And Component Tests

Voltage and Component Tests—Key Switch

Power Supply Circuit (SE1)

Power Circuit Operational Information

Power Circuit Theory of Operation

Charging Circuit (SE1)

Charging System Operational Information

Charging Circuit Theory of Operation

Voltage And Component Tests—Charging Circuit

Group 15B: Wiper and Seat Circuit Diagnosis

Wiper Circuit (SE2)

Wiper Circuit Operational Information

Wiper Circuit Theory of Operation

Voltage And Component Test—Wiper Circuit

CCU Diagnostic Mode

Seat Circuit (SE2)

Seat Circuit Operational Information

Seat Circuit Theory of Operation

Voltage And Component Test—Seat Circuit

CCU Diagnostic Mode

Group 15C: Ground Fault Circuit Interrupter Diagnosis

Ground Fault Circuit Interrupter/Heaters

Ground Fault Circuit Operational Information

G.F.C.I. Circuit Theory of Operation

Voltage And Component Tests—Ground Fault Circuit Interrupters

Group 15D: Air Quality System (AQS) Diagnosis

AQS Circuit

AQS Circuit

Voltage and Component Test—AQS Circuit

Group 15E: Radio, Horn, Dome Lamp and Multi-Function Control Circuit

Radio, Dome Lamp and Multi-Function Control Circuit

Radio, Dome Lamp and Multi-Function Control Circuit

Horn Circuit Operational Information

Horn Circuit Theory of Operation

Voltage and Component Test—Horn Circuit

Dome Lamp Circuit Operational Information

Dome Lamp Circuit Theory of Operation

Voltage and Component Test—Dome Lamp

Radio and Clock Circuit Operational Information

Radio and Clock Circuit Theory of Operation

Voltage And Component Test—Radio and Clock Circuit

Group 15F: Lighting Circuit Diagnosis

Lighting Circuit Schematic (SE5)

Lighting Circuit Diagnostic Schematic (SE5)

Lighting Circuit Operational Information

Lighting Circuit Operation

Turn Signal and Warning Lights Circuit Theory of Operation

Voltage and Component Tests

CCU Diagnostic Mode (Turn Signal and Warning Lamps)

Group 15G: Accessory Connector and Lighter Circuit Diagnosis

Accessory Connector Circuit—SE6

Accessory Connector Circuit

Lighter Circuit Operational Information

Lighter Circuit Theory of Operation

Voltage And Component Tests—Lighter Circuit

Group 15H: Hitch Control Diagnosis

Hitch Control Circuit Schematic (SE7)

Hitch Control Circuit Diagnostic Schematic (SE7)

Hitch System Diagnosis

Group 15J: CCU Diagnosis

CCU Input—Output Signals

CCU Terminal Numbers

CCU Circuit Checks

CCU Diagnostic Codes

Group 15K: Differential Lock Circuit

Differential Lock Circuit (SE8)

Differential Lock Circuit Theory of Operation

Voltage and Component Tests

CCU Diagnostic Mode (Differential Lock)

Group 15L: MFWD Circuit

MFWD Circuit (SE8)

MFWD Circuit (SE8)

MFWD Circuit Theory of Operation

Voltage and Component Tests—MFWD Circuit

CCU Diagnostic Mode (MFWD and Brake Switches)

Group 15M: Rear PTO Circuit

Rear PTO Circuit (SE8)

Rear PTO Circuit Theory of Operation

Voltage and Component Tests

CCU Diagnostic Mode (PTO and Seat Switches)

Group 15N: Wheel and Radar Speed Circuit

Wheel Speed Circuit (SE8)

Radar Speed Circuit (SE8)

Wheel and Radar Speed—Theory of Operation

Voltage and Component Test—Wheel Speed and Radar Circuit

CCU Diagnostic Mode (Wheel and Radar Speed Circuit)

Group 15P: Engine Speed Sensor Circuit

Engine Speed Sensor Circuit (SE8)

Engine Speed Sensor Circuit—Theory of Operation

Voltage and Component Test—Engine Speed Sensor Circuit

CCU Diagnostic Mode (Engine Speed Sensor)

Group 15Q: Fuel Level Sender Circuit

Fuel Level Sender Circuit (SE8)

Fuel Level Sender Circuit—Theory of Operation

Voltage And Component Tests—Fuel Level Sender Circuit

CCU Diagnostic Mode (Fuel Level Sender)

Group 15R: System Voltage Circuit

System Voltage Circuit (SE8)

System Voltage— Theory of Operation

Group 15S: Engine Coolant Temperature Sensor

Engine Coolant Temperature Circuit (SE8)

Engine Coolant Temperature Circuit—Theory of Operation

Voltage and Components Tests—Engine Coolant Temperature Circuit

CCU Diagnostic Mode (Engine Coolant Temperature)

Group 15T: Hydraulic Oil Temperature Circuit

Hydraulic Oil Temperature Circuit (SE8)

Hydraulic Oil Temperature Circuit—Theory of Operation

Voltage And component Tests—Hydraulic Oil Temperature Circuit

CCU Diagnostic Mode (Hydraulic Oil Temperature)

Group 15U: Engine Oil Pressure Sensor Circuit

Engine Oil Pressure Sensor Circuit (SE8)

Engine Oil Pressure Sensor Circuit—Theory of Operation

Voltage and Component Tests—Engine Oil Pressure Sensor Circuit

CCU Diagnostic Mode (Engine Oil Pressure Circuit)

Group 15V: Transmission Oil Pressure Circuit

Transmission Oil Pressure Circuit (SE8)

Transmission Oil Pressure Circuit—Theory of Operation

Voltage and Component Tests—Transmission Oil Pressure

CCU Diagnostic Mode (Transmission Oil Pressure)

Group 15W: Air Filter Restriction Sensor Circuit

Air Filter Restriction Sensor Circuit (SE8)

Air Filter Restriction Sensor Circuit—Theory of Operation

Voltage and Component Tests—Air Filter Restriction Sensor Circuit

CCU Diagnostic Mode (Air Filter Restriction Sensor)

Group 15X: Transmission Oil Filter Restriction Sensor Circuit

Transmission Oil Filter Restriction Sensor Circuit (SE8)

Transmission Oil Filter Restriction Sensor Circuit

Voltage and Component Tests—Transmission Oil Filter restriction Sensor

CCU Diagnostic Mode (Transmission Oil Filter Restriction Sensor)

Group 15Y: Hydraulic Oil Filter Restriction Sensor Circuit

Hydraulic Oil Filter Restriction Sensor Circuit (SE8)

Hydraulic Oil Filter Restriction Sensor Circuit—Theory of Operation

Voltage and Component Checks—Hydraulic Oil Filter Restriction Circuit

CCU Diagnostic Mode

Group 15Z: Sensor Excitation Power Circuit

Sensor Excitation Power Circuit (SE8)

Sensor Power Circuit (SE9)

Sensor Excitation Power Circuit—Theory of Operation

CCU Diagnostic Mode

Group 15AA: Engine Hours and Engine Starts

Engine Hours and Engine Starts (SE8)

Engine Hours and Engine Starts—Theory of Operation

Group 15AB: Fuel Timing Advance Circuit

Fuel Timing Advance Circuit

Fuel Timing Advance Circuit—Theory of Operation

Fuel Timing Advance Circuit—Diagnosis

Group 15AC: Display Modules

Display Modules Circuit Diagnostic Schematic (SE9)

Display modules Circuit Schematic (SE 9)

Tachometer Operational Information

Tachometer Input—Output Signals

Voltage and Component Tests—Tachometer

Performance Monitor Operational Information

Performance Monitor Input—Output Signals

Performance Monitor Features

Performance Monitor Normal Operating Mode

Implement Button

Percent Slip Button

Distance Button

PTO RPM Button

Dim/Cancel Button

Zero Button

Set Button

Performance Monitor Set Mode

Area Monitor

Implement Selector

Percent Slip

Distance

Width

Service

Backlighting

Group 15AD: PowrQuad Control Circuit

PQT Reverser Control Circuit Schematic

PQT Reverser Control Circuit Diagnostic Schematic (SE10)

PQT Reverser Control Circuit Diagnosis

Group 15AE: ROW-TRAK Control Circuit

ROW-TRAK ROW-TRAK is a trademark of Deere & Company. Control Circuit Schematic (SE11)

ROW-TRAK ROW-TRAK is a trademark of Deere & Company. Control Circuit Diagnostic Schematic

ROW-TRAK ROW-TRAK is a trademark of Deere & Company. Control Circuit Diagnosis

Group 15AF: CCD Communication

CCD Communication Line—Theory of Operation Chrysler Collision Detection (CCD) is a method of handling multiple bits of information being broadcast on the same communication line.

Control Unit Locations

Control Unit Explanations

CCD Network Diagnosis

CCD Diagnosis Sheet

CCD DIAGNOSIS SHEET

Voltage and Component Test—CCD

Group 20: Calibration

Calibration Groups

Group 20A: CCU Calibration

CCU Operational Information

Accessing Tachometer Modes

CCU Modes/Addresses Navigational Flow Chart

CCU Calibration

Address Numbers "96" Through "99"

CCU "Read Only" Addresses

Circuit Address Numbers

Address Numbers “20” Through “99”

Group 20B: Performance Monitor Calibration and Diagnostic Tool

Performance Monitor—Calibration and Diagnostic Tool

Using Performance Monitor as Remote Diagnostic/Calibration Device

Calibrating Radar and Wheel Speed Sensors

HCU Calibration Information

Group 20C: Battery References

Battery Operation

Battery Specifications

Battery Electrolyte Level and Terminals

Fill Tube Application

Procedure For Testing Batteries

Diagnose Battery Malfunctions

Using A Booster Battery Or Battery Charger

Section 250: Transmissions

Group 05: Operational Checks

Before You Start

Group 10: Transmission And Reverser Diagnosis

Groups in Transmission And Reverser Diagnosis

Group 10A: PowrQuad PowrQuad is a trademark of Deere & Company. Diagnosis

Use Step-By-Step Hydraulic Diagnostic Charts

Essential or Recommended Tools

Service Equipment and Tools

Transmission Cooler Flow Check

System and Lube Pressure Check

MFWD Clutch Element Leak Check

Other Material

Avoid High-Pressure Fluids

Adjust for Correct Pressure and Temperature References

Observe Safety Precautions

Shortened Diagnostic Procedure

Major System Checks

PowrQuad PowrQuad is a trademark of Deere & Company. Transmission Record Sheet

Additional Troubleshooting

Group 10B: Reverser Control Unit (RCU)

RCU Functional Schematic

RCU Component Locations

RCU Inputs and Outputs

RCU Outputs

Overview

Come Home Feature and Operation

Normal Characteristics for Early Tractors

Quick Check

How to Display and Clear Stored Diagnostic Codes (Address 1)

RCU Diagnostic Codes

RCU Address Summary

Accessing Tachometer Addresses

Operating Diagnostic Beep Addresses 02—07

RCU Address List

RCU Diagnostics — Addresses

Address 04

Address 05

Address 06

Address 07

Neutral Start Switch Test Procedure

Group 10C: SyncroPlus SyncroPlus is a trademark of Deere & Company. Diagnosis

Use Step-By-Step Hydraulic Diagnostic Charts

Essential or Recommended Tools

Recommended Tools

Service Equipment and Tools

Avoid High-Pressure Fluids

Adjust for Correct Pressure and Temperature References

Observe Safety Precautions

Shortened Diagnostic Procedure

Major System Checks

SyncroPlus SyncroPlus is a trademark of Deere & Company. Transmission Test Record Sheet

SyncroPlus SyncroPlus is a trademark of Deere & Company. Transmission Diagnosis

Typical SyncroPlus SyncroPlus is a trademark of Deere & Company. Pressure/Flow Chart

Connecting Test Kit to Transmission Test Ports

System Pressure Test

Adjusting System Pressure

Lube Oil Pressure Test

Clutch Pressure Test

Engagement Override Valve Test

Clutch Cooling Oil Pressure Test

Clutch Cooling System Test

Group 25: Theory Of Operation

Groups in Theory Of Operation

Group 25A: PowrQuad PowrQuad is a trademark of Deere & Company. Theory of Operation

Guide to PowrQuad PowrQuad is a trademark of Deere & Company. Transmission Theory

PowrQuad PowrQuad is a trademark of Deere & Company. Transmission

PowrQuad PowrQuad is a trademark of Deere & Company. Transmission Schematic—W/O Reverser

PowrQuad PowrQuad is a trademark of Deere & Company. Transmission Schematic—W/Reverser

PowrQuad PowrQuad is a trademark of Deere & Company. Transmission W/O Reverser (Component Identification)

Planetary Operation

Test Port and Sensor Identification

Air Pump

Transmission Oil Pump

Clutch Oil Manifold

Reverse Brake Housing

Reservoir

Filter Relief Valve

Pressure Regulating Valve

Speed Control Circuit

EOV Circuit

Speed Modulator

Speed Modulator Information

Shifting From One Speed to Another Using the Speed Control Lever

Information

Speed Lever Moved from Neutral to Second Forward or Second Reverse

Speed Modulation Part I

FWD-REV Modulation

Engine is Running and Transmission is in Park

Shift Lever Moved From Neutral to Forward or Reverse

Shift Lever Moved from Forward or Reverse to Neutral

Shift Lever

Electronic Shifting with Reverser

Traction Element Cooling Oil Components

Oil Cooler System

Creeper Transmission Operation

Range Box

Group 25B: Reverser Control Unit (RCU) Theory of Operation

PowrQuad PowrQuad is a trademark of Deere & Company. Transmission W/Reverser (Component Identification)

Neutral and Engine Off, Key at Start Position

Neutral and Engine Running, Key at Run Position

Engine Running and Key at Run, F-N-R Lever at Forward

Engine Running and Key at Run, F-N-R Lever Moved From Forward to Neutral

Engine Running and Key at Run, F-N-R Lever Moved Across Neutral

Group 25C: SyncroPlus SyncroPlus is a trademark of Deere & Company. Theory of Operation

Transmission Design

SyncroPlus SyncroPlus is a trademark of Deere & Company. Transmission With Clutch (Neutral With Clutch Engaged)

SyncroPlus SyncroPlus is a trademark of Deere & Company. Transmission (Components)

SyncroPlus SyncroPlus is a trademark of Deere & Company. Transmission Schematic (Component Identification)

Shift Operation

Synchronization

Clutch

Operation of Clutch

Actuating the Clutch

Engine On, Clutch Pedal Not Depressed

Clutch Pedal Depressed

Clutch Pedal in Process of Being Released

Clutch Cooling

Clutch Cooling During Engagement

Clutch Cooling During Engagement

Clutch Partially Engaged

Clutch Engaged

Clutch Partially Disengaged

Clutch Disengaged

Clutch Only Briefly Disengaged

Centrifugal Force Valve and Air Bleed Valve

Design

Power Flow In 1st Gear

Power Flow In 2nd Gear

Power Flow In 3rd Gear

Power Flow In Reverse Gear

Neutral Start Switch

Section 256: Drive Systems

Group 05: Operational Checks

Checks

Group 10: Drive System Diagnosis

Essential or Recommended Tools

Avoid High-Pressure Fluids

Rear Differential Diagnosis

Rear PTO Diagnosis

MFWD Diagnosis

Using MFWD Step by Step Test Procedure

Observe Service Precaution

MFWD Electrical Schematic

MFWD Diagnostic Schematic

Group 20: Adjustments

MFWD Brake Pedal Switch Adjustment

Group 25: Theory of Operation

Rear Differential Operation

Differential Lock

Differential Lock Operation

Final Drive Operation

PTO Modulating Valve Operation

Rear PTO

Rear PTO Clutch and Brake Operation

Dual Speed PTO— 1000 RPM Engagement

Dual Speed PTO— 540 RPM Engagement

MFWD Clutch Operation

MFWD Identification- Version “A”, “B” and “C”

MFWD Axle Operation

MFWD DIFFERENTIAL OPERATION—LIMITED SLIP

Section 260: Steering and Brakes

Group 25: Steering and Brakes Theory of Operation

Steering System Operation ( —52960)

Primary Hydraulic Steering and Brakes

Steering Control Valve Assembly

Cutaway View of Steering Valve

Gerotor Operation

Neutral Steering ( —52960)

Right-Turn Steering ( —52960)

Emergency Steering ( —52960)

Steering System Operation (52961— )

Steering and Brake Hydraulic Schematic

Neutral Steering (52961— )

Right-Turn Steering (52961— )

Emergency Steering (52961— )

Gerotor Operation

Brake Pistons, Plates and Disks Operation

Brake Released

Brake Modulation

Brake Engaging

Brake Engaging

Manual Braking— Prefill

Manual Braking— Engaging

Manual Breaking -Engaging

Section 270: Hydraulic System

Group 05: Operational Checks

Before You Start

Group 10: Hydraulic System Diagnosis

Hydraulic System Diagnosis

Group 10A: Tools and Safety

Essential Or Recommended Tools

Agricultural Universal Pressure Test Kit

Hand-Held Digital Tachomete

Service Equipment and Tools

Avoid High-Pressure Fluids

Observe Safety Precautions

Group 10B: Diagnostic Guidelines

General Diagnostic Information

Adjust for Correct Pressure and Temperature References

Heating Hydraulic Oil

Use Step-By-Step Hydraulic Diagnostic Charts

Navigational Flow Chart

Major System Tests—Hydraulics

Hydraulic Test Record Sheet

Group 10C: Preliminary Checks

Preliminary Checks

Recall CCU Codes

Hydraulic Filter Check

Group 10D: Hydraulic Diagnosis

Install Test Equipment

HYD TEST NO. 1

HYD TEST NO. 2

HYD TEST NO. 3

HYD TEST NO. 4

HYD TEST NO. 5

HYD TEST NO. 6

HYD TEST NO. 7

HYD TEST NO. 8

HYD TEST NO. 9

HYD TEST NO. 10

HYD TEST NO. 11

Summary of Hydraulic Testing

Group 10E: Additional Troubleshooting Information

Additional Troubleshooting Information

Hydraulic System Response to a Missing Shuttle Check Valve

Missing Check Valve Chart

SCV and Coupler Leak Test

Three-Position SCV Lever Kickout Adjustment

Bleeding Load-Sense and Hydraulic Pressure Circuits

Group 10F: Hitch Electrical Diagnosis

Hitch Electrical Troubleshooting Tips

Wiring Harnesses

Hitch Harnesses

Come Home Feature

Component Test Specifications—HCU

HCU Hardware and Software Information

Hitch Circuit Diagnosis

Test Procedure No. 1—HCU

Diagnostic Codes

HCU Diagnostic Code Numbers

Test Procedure No. 2—HCU

HCU Circuit Diagnostic (“Beep”) Addresses

Test Procedure No. 3—HCU

Test Procedure No. 4—HCU

Test Procedure No. 5—HCU

Test Procedure No. 6—HCU

Test Procedure No. 7—HCU

Test Procedure No. 8—HCU

Test Procedure No. 9—HCU

Test Procedure No. 10—HCU

Test Procedure No. 11—HCU

Test Procedure No. 12—HCU

Test Procedure No. 13—HCU

Test Procedure No. 14

Test Procedure No. 15

Test Procedure No. 16

Test Procedure No. 17—HCU

Adjust Hitch Valve ( —52960)

Test Procedure No. 18—HCU

Test Procedure No. 19—HCU

Test Procedure No. 20—HCU

Test Procedure No. 21—HCU

Test Procedure No. 22—HCU

Test Procedure No. 23

Group 10G: HCU Additional Tests

Check Continuity of External Raise/Lower Switch

Group 10H: ROW-TRAKROW-TRAK is a trademark of Deere & Company Tests

ROW-TRAK Control Circuit Schematic

ROW-TRAK Control Circuit Diagnostic Schematic

ROW-TRAK ROW-TRAK is a trademark of Deere & Company. (LHP) Tests

Test Procedure No. 1—LHP

Diagnostic Codes

LHP Diagnostic Code Numbers

Test Procedure No. 2

LHP Circuit Diagnostic ("Beep") Addresses

Test Procedure No. 3—LHP

Test Procedure No. 4—LHP

Test Procedure No. 5—LHP

Test Procedure No. 6—LHP

Test Procedure No. 7

Test Procedure No. 8—LHP

Test Procedure No. 9—LHP

Test Procedure No. 10—LHP

Test Procedure No. 11—LHP

Test Procedure No. 12—LHP

Test Procedure No. 13—LHP

Test Procedure No. 14—LHP

Test Procedure No. 15—LHP

Test Procedure No. 16—LHP

Test Procedure No. 17—LHP

Test Procedure No. 18—LHP

Test Procedure No. 19—LHP

Test Procedure No. 20—LHP

Test Procedure No. 21—LHP

Test Procedure No. 22—LHP

Test Procedure No. 23—LHP

Test Procedure No. 24—LHP

Group 20: Calibrations and Adjustments

Calibrations and Adjustment Groups

Group 20A: Hitch Calibrations and Adjustments

HCU Addresses

HCU Hitch Dampening Calibration Procedure

Set Hitch Controls for Calibration

Group 20B: ROW-TRAK™ Calibrations and Adjustments

LHP Addresses

LHP Calibration

Prepare ROW-TRAK System For Calibration

Group 25: Theory of Operation

Theory Of Operation Groups

Group 25A: Hydraulic System Diagrams

Hydraulic System Components

Hydraulic System Schematic( —52960)

Hydraulic System Schematic (52961— )

Group 25B: Hydraulic Control Circuit

Description of Axial Piston Pump

Location of Oil Lines

Pump Operation

Charge Pump

Hydraulic Filter Operation

Hydraulic System Secondary Circuit (Component Identification)

Priority Valve

Neutral— At Start Up

Neutral

Group 25C: Steering Circuit

Steering Operation ( —52960)

Steering Relief ( —52960)

Steering Returned to Neutral ( —52960)

High Pressure Demand From Secondary ( —52960)

Steering Operation (52961— )

Steering Relief (52961— )

Steering Returned to Neutral (52961— )

High Pressure Demand From Secondary (52961— )

Group 25D: Selective Control Valves (SCV)

Two-Position Selective Control Valve— Neutral

Two-Position Selective Control Valve— Extend

Two-Position Selective Control Valve— Retract

Two-Position Selective Control Valve— Float

Three-Position Selective Control Valve Operation— Neutral

Three-Position Selective Control Valve Operation— Extend

Three-Position Selective Control Valve Operation— Retract

Three-Position Selective Control Valve Operation— Float

ISO Coupler— Closed

ISO Coupler— Coupling

ISO Coupler— Opening

ISO Coupler— Uncoupling

Group 25E: Hitch

Hitch Control Valve

Pressure and Return Solenoid Valves

Hitch Control Valve— Neutral Position

Pressure Compensator Valve

Load Check Valve

Surge Relief Valve

Hitch Load-Sense Check Valve

Hitch Operation— Raised

Hitch Operation— Stopped

Hitch Operation— Lower

Hitch Operation— Full Lower

Three Point Hitch Hydraulic Operation

Hitch Controls

Electro-Hydraulic Hitch Circuit

Electro-Hydraulic Hitch Sensor Locations

Hitch Control Unit (HCU)

Operator Controls

Hitch Control Lever

Load/Depth Control Potentiometer

Rate-of-Drop Control Potentiometer

Raise Limit Control Potentiometer

Console Raise/Lower Rocker Switch

External Raise/Lower Switch

Hitch Sensing Devices

Hitch Position Feedback Sensor

Load/Draft Sensor

Group 25F: Electro-Hydraulic Depth Control

Remote Lift assist (RLA) And Electro-Hydraulic Depth Control (EHDC) Features

Remote Lift assist (RLA) Mode

Electro-Hydraulic Depth Control (EHDC)— Optional

Electro-Hydraulic Depth Control (EHDC) Mode

Group 25G: Headland Management Systems (HMS)

Operation And Function Of Headland Management System (HMS) (If Equipped)

Group 25H: Hitch Dampening

Operation and Function Of Electronic Hitch Dampening (If Equipped)

Section 290: Operator Station

Group 05: Operational Checks

Before You Start

Group 10: Air Conditioning System Diagnosis

Service Equipment and Tools

Specifications

Air Conditioning System

Group 25: Air Conditioning Theory of Operation

Refrigerant

Air Conditioning System Air Flow

Air Conditioning System Cycle

Compressor

Condenser

Receiver-Dryer

Expansion Valve

De-Icing Switch

Evaporator

Temperature Control Knob

Compressor On/Off Switch

High And Low Pressure Switches

Section 299: Dealer Fabricated Tools

Group 05: Dealer Fabricated Tools

DFRW2 — Needle Valve Test Hose Assembly

DFRW26—Test Lead for Automotive-Style Fuses

DFRW27— Special Diagnostic Jumper Lead Assortment

DFRW51—Electronic Circuit Load Tester

DFRW85—Reverse Brake Test Plate

DFRW86—Spool Holding Tool

DFRW60 - DFRW61 - DFRW62—Extension Harnesses

DFRW63 - DFRW64 - DFRW65 - DFRW66 - DFRW81—Tap-Out Harnesses

DFRW126—Tap-Out Harness

DFRW130—Relay Circuit Test Lead

DFRW133 Tap-Out Harness

John Deere Tractors 7210, 7410, 7510 Diagnosis and Tests Service Technical Manual (TM1654)