Complete Diagnostics, Operation and Test manual with electrical wiring diagrams for John Deere 450LC Excavator, with all the shop information to maintain, diagnose, and rebuild like professional mechanics.

John Deere 450LC Excavator workshop diagnosis test 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.

TM1671 - John Deere 450LC Excavator Technical Manual - Operation and Test.PDF
TM1671 - John Deere 450LC Excavator Technical Manual - Operation and Test.EPUB

PRODUCT DETAILS:
Total Pages: 1,011 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English

MAIN SECTIONS
 Foreword
   Technical Information Feedback Form
   General Information
      Safety
      General Specifications
      Torque Values
      Fuels and Lubricants
      Predelivery Assembly Instructions
   Operational Checkout Procedure
      Operational Checkout Procedure
   Engine
      Theory of Operation
      Diagnostic Information
      Adjustments
      Tests
   Electrical System
      System Information
      System Diagrams
      Sub-System Diagnostics
      References
   Power Train
      Theory of Operation
      Diagnostic Information
      Adjustments
   Hydraulic System
      Theory of Operation
      Diagnostic Information
      Adjustments
      Tests
   Air Conditioning System
      Theory of Operation
      System Operational Checks
      Diagnostic Information
      Adjustments
      Tests

tm1671 - 450LC Excavator Operation and Tests

Table of Contents

Foreword

Technical Information Feedback Form

Section 9000: General Information

Group 01: Safety

Follow Safe Procedures

Prepare for Emergencies

Handle Fluids Safely-Avoid Fires

Prevent Battery Explosions

Handle Chemical Products Safely

Prevent Acid Burns

Avoid High-Pressure Fluids

Warn Others of Service Work

Park Machine Safely

Support Machine Properly

Operate Only from Operator's Seat

Stay Clear of Moving Parts

Avoid Power Lines

Use Handholds and Steps

Keep Riders Off Machine

Move and Operate Machine Safely

Wear Protective Clothing

Protect Against Flying Debris

Protect Against Noise

Illuminate Work Area Safely

Service Machines Safely

Remove Paint Before Welding or Heating

Avoid Heating Near Pressurized Fluid Lines

Beware of Exhaust Fumes

Use Proper Lifting Equipment

Service Cooling System Safely

Dispose of Waste Properly

Work in a Clean Area

Use Tools Properly

Replace Safety Signs

Live With Safety

Group 02: General Specifications

450LC Specifications

450LC Drain and Refill Capacities

Group 03: Torque Values

Unified Inch Bolt and Screw Torque Values

Metric Bolt and Screw Torque Values

Additional Metric Cap Screw Torque Values

Check Oil Lines And Fittings

Service Recommendations for O-Ring Boss Fittings

Service Recommendations For Flat Face O-Ring Seal Fittings

Service Recommendations for 37° Flare and 30° Cone Seat Connectors

Service Recommendations For Flared Connections-Straight or Tapered Threads

Service Recommendations For Inch Series Four Bolt Flange Fittings

Service Recommendations for Metric Series Four Bolt Flange Fitting

Group 04: Fuels and Lubricants

Diesel Fuel

Lubricity of Diesel Fuel

Low Sulfur Diesel Fuel Conditioner

Diesel Fuel Storage

Fuel Tank

Do Not Use Galvanized Containers

Diesel Engine Oil

Hydraulic Oil

Gear Oil

Track Roller, Front Idler, and Carrier Roller Oil

Track Adjuster, Working Tool Pivot, Swing Bearing, and Swing Bearing Gear Grease

Oil Filters

Lubricant Storage

Alternative and Synthetic Lubricants

Mixing of Lubricants

Group 06: Predelivery Assembly Instructions

Install Boom, Arm, Bucket and Counterweight

Adjust Bucket Linkage (Earlier Models)

Adjust Bucket Linkage (Later Models)

Attach Windshield Wiper

Track Gauge Work Position Adjustment

Track Gauge Transport Position Adjustment

Check Hydraulic Oil Level

Lubricate Working Tool Pivots

Install Counterweight

Install Counterweight With Hydraulic Removal Option

Section 9005: Operational Checkout Procedure

Group 10: Operational Checkout Procedure

Operational Checkout

Section 9010: Engine

Group 05: Theory of Operation

6101 John Deere Engine-Use CTM61

Radiator Cap Operation

Recovery Tank Operation

Radiator Operation and Deaeration

Thermostat

Engine Sectional View

Engine Speed Control System Operation

Group 15: Diagnostic Information

6101 John Deere Engine-Use CTM61

John Deere Engine Accessories-Use CTM67

Diagnose Engine Malfunctions

Group 20: Adjustments

6101 John Deere Engine-Use CTM61

Inspect Belts, Check, and Adjust Tension

Engine Speed Control Linkage Adjustment

Fuel Shut-Off Solenoid Adjustment

Group 25: Tests

6101 John Deere Engine-Use CTM61

John Deere Engine Accessories-Use CTM67

JT05801 Clamp-On Electronic Tachometer Installation

JT05800 Digital Thermometer Installation

Fuel Line Leakage Test

Air Filter Restriction Indicator Switch Test

Air Intake System Leakage Test

Radiator Air Flow Test

Section 9015: Electrical System

Group 05: System Information

Electrical System Visual Inspection

Electrical Circuit Malfunctions

High Resistance Circuit

Open Circuit

Grounded Circuit

Shorted Circuit

Sensor Circuit Shorted to Power

Sensor Circuit Shorted to Itself

Sensor Circuit Shorted to Ground

Multimeter

Seven Step Electrical Test Procedure

Schematic, Wiring Diagram, and Component Location Information

Reading a System Functional Schematic

Reading a Wiring Diagram

Reading a Component Location Diagram

Reading a Connector End View Diagram

Electrical Schematic Symbols

Group 10: System Diagrams

Fuse Specifications

Fuse (Blade-Type) Color Codes

Component Identification Table

Functional Schematic And Component Location Master Legend

System Functional Schematic Section Legend

System Functional Schematic (SE1-SE3)

System Functional Schematic (SE4-SE6)

System Functional Schematic (SE7-SE9)

System Functional Schematic (SE10-SE12)

System Functional Schematic (SE13-15)

System Functional Schematic (SE16-SE18)

System Functional Schematic (SE19-SE21)

Engine and Frame Harness (W1) Component Location Diagram

Engine and Frame Harness (W1) Connectors, Wire and Pin Location

Cab Harness (W2) Component Location Diagram-Part 1

Cab Harness (W2) Component Location Diagram-Detail D (Fuse Block)

Cab Harness (W2) Component Location Diagram-Detail E (Harness Mating Connectors)

Cab Harness (W2) Component Location Diagram-Part 2 (Air Conditioner Components)

Cab Harness (W2) Connectors, Wire and Pin Location

Monitor and Relay Harness (W3) Component Location

Monitor and Relay Harness (W3) Component Location-Detail A (Monitor Controller Connectors)

Monitor and Relay Harness (W3) Component Location-Detail B (Monitor Controller Indicators)

Monitor and Relay Harness (W3) Connectors, Wire and Pin Location

Group 15: Sub-System Diagnostics

Power Circuit Operational Information

Power Circuit Theory of Operation

Power Circuit Schematic

Charging Circuit Operational Information

Charging Circuit Theory Of Operation

Charging Circuit Schematic

Alternator Theory of Operation

Starting and Fuel Shutoff Circuit Operational Information

Starting and Fuel Shutoff Circuit Theory of Operation

Starting and Fuel Shutoff Circuit Schematic

Windshield Wiper and Washer Circuit Operational Information

Windshield Wiper And Washer Circuit Theory of Operation

Windshield Wiper And Washer Circuit Schematic

Work and Drive Light Circuit Operational Information

Work and Drive Light Circuit Theory of Operation

Work and Drive Light Circuit Schematic

Accessory Circuits Operational Information

Accessory Circuits Theory of Operation

Accessory Circuits Schematic

Monitor Controller and Display Circuit Specifications

Monitor Controller and Display Circuit Operational Information

Monitor Controller and Display Circuit Theory of Operation

Monitor Controller and Display Circuit Schematic

Engine Controller Circuit Specifications

Engine Controller Circuit Operational Information

Engine Controller Circuit Theory of Operation

Engine Controller Circuit Schematic

Pump And Valve Controller Circuit Specifications

Pump And Valve Controller Circuit Operational Information

Pump And Valve Controller Circuit Theory of Operation

Pump And Valve Controller Circuit Schematic

Travel Alarm Circuit Specifications

Travel Alarm Circuit Operational Information

Travel Alarm Circuit Theory of Operation

Travel Alarm Circuit Schematic

Group 20: References

Battery Operation

Battery Specifications

Diagnose Battery Malfunctions

Check Battery Electrolyte Level and Terminals

Procedure for Testing Batteries

Using Booster Batteries-24 Volt System

Replacing Batteries

Fuse Test

Adding 12 or 24 Volt Accessories

Changing Travel Alarm Volume

Pump Pressure Sensor Harness Test

Differential Pressure Sensor (DP Sensor) Voltage Test

Engine Speed Programming Procedure After Battery Disconnection

Hydraulic Pump Angle Sensor (A Sensor) Adjustment

Hydraulic Pump Angle Sensor (A Sensor) Mechanical Check Diagnostic Procedure

Troubleshooting Engine Controller (EC)

Troubleshooting Pump and Valve Controller (PVC)

Electronic Control Bypass Procedure

Engine Control Sensor (EC Sensor) Harness Test

Windshield Wiper Circuit Harness Test

Connecting Engine Controller (EC) and Pump and Valve Controller (PVC) Harness Connector

Disconnect Tab Retainer Connectors

Disconnecting Spring Wire Clip Connectors

Section 9020: Power Train

Group 05: Theory of Operation

Track Adjuster Operation

Propel Gearbox Operation

Group 15: Diagnostic Information

Diagnose Undercarriage Component Malfunctions

Measure Track Chain and Roller Wear

Group 20: Adjustments

Swing Bearing Wobble Test

Track Sag Adjustment

Section 9025: Hydraulic System

Group 05: Theory of Operation

Hydraulic System Schematic

Pilot Pump and Filter Operation

Solenoid Valve Manifold and Pilot Pressure Regulating Valve Operation

Pilot Shut-Off Valve Operation

Check Block Operation

Pilot Controller Operation-Neutral

Pilot Controller Operation-Metering

Propel Pilot Controller Operation-Neutral (Earlier Machines)

Pilot Controller Operation-Neutral (Later Machines)

Auxiliary or Counterweight Removal Pilot Controller Operation (Earlier Machine)

Auxiliary or Counterweight Removal Propel Pilot Controller Operation (Later Machine)

Flow Regulator Valve Operation

Propel Flow Regulator Valve Operation

Main Control Valve Operation

Control Valve

Control Valve Cross Section

Control Valve Check Valve Identification and Function

Control Valve Check Valves Schematic

Control Valve Check Valve Cross Section

Power Boost Circuit

System Relief Valve Operation

Circuit Relief-Anti-Cavitation

Make Up Valve Operation

Reduced Leakage Valve

Flow Combiner Valve Circuit Operation

Flow Combiner Valve Schematic

Flow Sensing Valve

Propel Work Circuit

Bucket and Auxiliary Work Circuits

Boom Up Work Circuit

Boom Down Work Circuit

Arm In Work Circuit

Arm Out Work Circuit

Arm Regenerative Valve

Swing Work Circuit

Swing Valve and End Section

Combined Operation Propel and Swing

Combined Function Swing and Boom Up-Grading

Combined Function Swing and Boom Up-Dig, Attachment, Precision

Swing Motor Operation

Swing Motor Crossover Relief Valve Operation

Swing Park Brake Release Circuit Operation

Swing Gearbox Operation

Cylinder Operation

Counterweight Removal Cylinder Operation

Counterweight Remove and Install Operation

Pump Drive Operation

Main Hydraulic Pump

Pump Displacement Increasing-Maximum

Pump Displacement Decreasing-Minimum

Pump Displacement Solenoid

Propel Circuit Operation

Propel Speed Control System

Propel Motor Operation

Propel Motor-Slow Speed

Propel Motor-Fast Speed

Counterbalance Valve-Propel

Counterbalance Valve-Braking

Propel Brake Operation

Propel Motor Crossover Relief Valve Operation

Rotary Manifold

Pump Inlet and Delivery Circuits

Return Circuit Operation

Hydraulic Schematic

Propel System

Group 15: Diagnostic Information

Diagnostic Procedure

Introduction to Flow Charts

Machine Malfunctions and Possible Causes

Electronic Component Diagnostic Procedure

Troubleshooting Pump and Valve Controller (PVC)

Troubleshooting Engine Controller (EC)

Hydraulic Pump Angle Sensor (A Sensor) Mechanical Check Diagnostic Procedure

Diagnose Hydraulic System Malfunctions

Control Valve Component and Line Identification

Pilot Circuit-SAE Pattern Component Location

Main Hydraulic System Component Location

Pilot System-SAE Pattern Component Location

Pilot System-JD Pattern Component Location

Counterweight Component Location

Group 20: Adjustments

Pilot Shut-Off Valve Linkage Adjustment

Group 25: Tests

Laptop Computer General Description

Excavator Diagnostics Program-Overview

Excavator Diagnostics Program-Install

Excavator Diagnostics Program-Uninstall

Excavator Diagnostics Program-Starting

Excavator Diagnostics Program Feature-Service Codes

Excavator Diagnostics Program Feature-Monitor Data

Excavator Diagnostics Program Feature-Saving Monitor Data

Excavator Diagnostic Program Special Function-Angle Sensor

Excavator Diagnostics Program Special Function-Engine Speed Adjustment

Service Codes for Engine Controller (EC)

Service Codes for Pump and Valve Controller (PVC)

Monitor Data Items

Excavator Diagnostics Program Special Function-Engine Speed Factory Settings Parameters

Excavator Diagnostic Program Troubleshooting

Reading Service Codes Without JT07290 Laptop Computer

JT05801 Clamp-On Electronic Tachometer Installation

JT05800 Digital Thermometer Installation

JT02156A Digital Pressure/Temperature Analyzer Installation

Hydraulic System Warm-Up Procedure

Hydraulic Oil Cleanup Procedure Using Portable Filter Caddy

Lower Boom with Engine Stopped

Engine Speed Programming Procedure After Battery Disconnection

Power Boost Solenoid Valve (SA) Harness Test

Propel Speed Change Solenoid Valve (SB) Harness Test

Swing Brake Release Solenoid Valve (SC) Harness Test

Pump Displacement Solenoid Valve Harness Test

Engine Control Sensor (EC Sensor) Harness Test

Windshield Wiper Circuit Harness Test

Engine Control Motor (EC Motor) Harness Test

Differential Pressure Sensor (DP Sensor) Voltage Test

Grading Solenoid Valve Harness Test

Miscellaneous Component Harness Test

Hydraulic Pump Start-Up Procedure

Swing Motor Start-Up Procedure

Swing Gearbox Start-Up Procedure

Propel Motor Start-Up Procedure

Cycle Time Test

Combined Boom Up and Swing Function Test

Pilot Pressure Regulating Valve Test and Adjustment

Valve Spool Actuating Pilot Pressure Test and Adjustment

Power Boost Solenoid Valve (SA) Test

Propel Speed Change Solenoid Valve (SB) Test

Swing Brake Release Solenoid Valve (SC) Test

System Relief Valve and Power Boost Test and Adjustment

Circuit Relief Valve Test and Adjustment

Swing Motor Crossover Relief Valve Test and Adjustment

Propel Motor Crossover Relief Valve Test and Adjustment

Arm, Boom, and Bucket Cylinder Drift Test

Propel Motor Operating Leakage Test

Propel System Tracking Test

Swing Motor Leakage Test

Pilot Pump Flow Test

Hydraulic Pump Flow Test

Section 9031: Air Conditioning System

Group 05: Theory of Operation

Proper Refrigerant Handling

R134a Refrigerant Cautions

Refrigerant Theory of Operation

Heater and Air Conditioner Circuit Operational Information

Heater and Air Conditioner Circuit Theory of Operation

Heater and Air Conditioner Circuit Functional Schematic

Receiver/Dryer Operation

Expansion Valve Operation

Compressor Relief Valve Operation

Temperature Control (Early Models)

Heater and Air Conditioner Controller Operation (Later Models)

Group 10: System Operational Checks

Heating and Air Conditioning Operational Checks

Group 15: Diagnostic Information

Diagnose Air Conditioning Electrical Malfunctions

Air Conditioner Harness (W9) Component Location

Group 20: Adjustments

Proper Refrigerant Handling

R134a Refrigerant Cautions

R134a Compressor Oil Charge Check

R134a Compressor Oil Removal

R134a Component Oil Charge

R134a Refrigerant Recovery, Recycling, and Charging Station Installation Procedure

Recover R134a System

Evacuate R134a System

Charge R134a System

Check and Adjust Compressor Belt Tension

Group 25: Tests

Proper Refrigerant Handling

R134a Refrigerant Cautions

R134a Air Conditioning System Test

Operating Pressure Diagnostic Chart

High and Low Pressure Switch Test

Leak Testing

Refrigerant Hoses and Tubing Inspection

John Deere 450LC Excavator Operation and Test Service Manual (TM1671)