Complete Operation and Test manual with Electrical Wiring Diagrams for John Deere 792D LC Excavator, with workshop information to maintain, diagnose, and service like professional mechanics.

 John Deere 792D LC Excavator workshop Operation and Test 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.

TM1595 - John Deere 792D LC Excavator Technical Manual - Operation and Test.PDF

Total Pages: 588 pages
File Format: PDF (bookmarked, ToC, Searchable, Printable, high quality)
Language: English

MAIN SECTIONS
 Foreword
   Help!! Help!! Help!! Help!!
   General Information
      Safety
      General Specifications
      Torque Values
      Fuels And Lubricants
   Operational Checkout Procedure
      Operational Checkout Procedure
   Engine
      Theory Of Operation
      Diagnostic Information
      Adjustments
      Tests
   Electrical System
      System Information
      System Diagrams
      Sub-System Diagnostics
   Power Train
      Theory Of Operation
      Diagnostic Information
      Adjustments
   Hydraulic System
      Theory Of Operation
      Diagnostic Information
      Adjustments
      Tests

tm1595 - 792D LC Excavator Operation and Tests

Table of Contents - Expanded View

Foreword

Help!! Help!! Help!! Help!!

Section 9000: General Information

Group 01: Safety

Follow Safe Procedures

Prepare for Emergencies

Prevent Acid Burns

Handle Chemical Products Safely

Handle Fluids Safely-Avoid Fires

Avoid High-Pressure Fluids

Warn Others of Service Work

Support Machine Properly

Operate Only from Operator's Seat

Park Machine Safely

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

792D LC Specifications

792D LC Drain And Refill Capacities

Group 03: Torque Values

Unified Inch Bolt and Cap Screw Torque Values

Metric Bolt and Cap Screw Torque Values

Additional Metric Cap Screw Torque Values

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

Low Sulfur Diesel Fuel Conditioner

Storing Fuel

Fuel Tank

Do Not Use Galvanized Containers

Diesel Engine Oil

Hydraulic Oil

Swing Gearbox, Propel Gearbox And Pump Gearbox Oils

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

Section 9005: Operational Checkout Procedure

Group 10: Operational Checkout Procedure

Operational Checkout Record Sheet-792D LC Excavator

Operational Checkout

Section 9010: Engine

Group 05: Theory Of Operation

6076 John Deere Engine-Use CTM42

General Engine Description

Engine-Sectional View

Engine Speed Control System Operation

Group 15: Diagnostic Information

6076 John Deere Engine-Use CTM42

Diagnose Engine Malfunctions

Group 20: Adjustments

6076 John Deere Engine-Use CTM42

JT05801 Clamp-On Electronic Tachometer Installation

Alternator Belt Tension Adjustment

Fan Belt Tension Adjustment

Fast And Slow Idle Speed Adjustments

Engine Speed Control Linkage Adjustment

Speed Control Lever Torque Adjustment

Fuel Shut-Off Solenoid Adjustment

Coolant Deaeration Procedure

Group 25: Tests

6076 John Deere Engine-Use CTM42

JT05801 Clamp-On Electronic Tachometer Installation

JT05800 Digital Thermometer Installation

Fuel Line Leakage Test

Engine Power Test Using Turbocharger Boost Pressure

Air Filter Restriction Indicator Switch Test

Air Intake System Leakage Test

Radiator Air Flow Test

Section 9015: Electrical System

Group 05: System Information

Battery Operation

Battery Specifications

Diagnose Battery Malfunctions

Check Battery Electrolyte Level And Terminals

Procedure For Testing Batteries

Using Booster Batteries-24 Volt System

Visually Inspect Electrical System

Electrical Circuit Malfunctions

High Resistance Circuit

Open Circuit

Grounded Circuit

Shorted Circuit

Multimeter

Seven Step Electrical Test Procedure

Wiring Diagram And Schematic Information

Reading A System Functional Schematic

Reading A Wiring Diagram

Electrical Schematic Symbols

Group 10: System Diagrams

Fuse (Blade-Type) Color Codes

Replacing Fuses

Switch Specifications

Engine Coolant Temperature Gauge And Sender

Fuel Gauge Sender

Component Identification Table

Wiring And Schematic Diagrams Legend

Group 15: Sub-System Diagnostics

Power Circuit Operational Information

Power Circuit Theory Of Operation

Charging Circuit Operational Information

Charging Circuit Theory Of Operation

Starting Circuit Operational Information

Starting Circuit Theory Of Operation

Starter Operation

Windshield Wiper, Horn, And Light Circuit Operational Information

Wiper, Horn And Light Circuit Theory Of Operation

Monitor Circuit Operational Information

Monitor Circuit Theory Of Operation

Engine And Pump Controller Circuit Operational Information

Engine And Pump Controller Circuit Theory Of Operation

Start Aid And Propel Alarm Circuit Operational Information

Start Aid And Propel Alarm Theory Of Operation

Starting Aid And Travel Alarm Schematic Drawing

Heater And Dome Light Circuits Operational Information

Heater And Dome Light Theory Of Operation

Section 9020: Power Train

Group 05: Theory Of Operation

Track Adjuster Operation

Propel Gearbox Operation

Group 15: Diagnostic Information

Diagnose Undercarriage Components Malfunctions

Measure Track Roller Wear

Measure Track Carrier Roller Wear

Measure Track Shoe Grouser Wear

Measure Track Link Wear

Measure Track Bushing Wear

Measure Track Chain Pitch

Measure Front Idler Wear

Measure Swing Bearing Wear

Group 20: Adjustments

Adjust Track Sag

Section 9025: Hydraulic System

Group 05: Theory Of Operation

Hydraulic System Diagram

Pilot System Operation

Pilot Pump And Filter Operation

Pilot Pressure Regulating Valve And Solenoid Valve Operation

Engine Speed And Pump Displacement Control Operation

Check Valve Block Operation

Pilot Shut-Off Valve Operation

Pilot Controller Operation-Neutral

Pilot Controller Operation-Metering And Full Stroke

Propel Pilot Controller Operation

Pilot Operation Of Main Control Valve

Flow Regulator Operation

Warm-Up Circuit Operation

Pump Inlet And Delivery Circuits Operation

Return Circuit Operation

Drain Circuit Operation

Return Filter Operation

Main Control Valve Operation

Main Control Valve Check Valves Schematic

Main Control Valve Check Valve Passages

Main Control Valve Check Valve Identification And Function

Dig And Propel System Relief Valves Circuit Operation

Flow Combiner And Swing Brake Release Valve Circuit Operation

Dig System Relief Valve Operation

Propel System Relief Valve And Swing Circuit Relief Valve Operation

Circuit Relief Valve And Anticavitation Valve Operation

Flow Sensing Valve Operation

Bucket And Auxiliary Work Circuits Operation

Boom Up Work Circuit Operation

Boom Down Work Circuit Operation

Arm In Work Circuit Operation

Arm Out Work Circuit Operation

Swing Work Circuit Operation

Control Valve Combined Function Operation

Swing And Arm Work Circuit Combined Function Operation

Propel And Bucket Work Circuit Combined Function Operation

Swing Motor Operation

Swing Motor Crossover Relief And Make-Up Valves Operation

Swing Brake Release Circuit Operation

Swing Gearbox Operation

Cylinder Operation

Splitter Drive Operation

Main Hydraulic Pump Operation

Main Hydraulic Pump Regulator Operation

Main Hydraulic Pump Displacement Operation

Main Hydraulic Pump Minimum Displacement Operation

Main Hydraulic Pump Increasing, Maximum, And Decreasing Displacement Operation

Main Hydraulic Pump Constant Horsepower System Operation

Main Hydraulic Pump Summation System Operation

Main Hydraulic Pump High-Low Maximum Displacement Operation

Propel Circuit Operation

Rotary Manifold Operation

Propel Motor Operation

Propel Control Valve Operation

Propel Motor Counterbalance Valve Propel And Neutral Operation

Propel Motor Counterbalance Valve Braking Operation

Propel Motor Crossover Relief Valve Operation

Propel Park Brake Operation

Group 15: Diagnostic Information

Diagnostic Procedure

Diagnose Hydraulic System Malfunctions

Diagnose Pilot Circuit Malfunctions

Diagnose Dig Circuit Malfunctions

Diagnose Swing Circuit Malfunctions

Diagnose Control Valve Check Valves Malfunctions

Diagnose Propel System Malfunctions

Hydraulic Circuit Symbols

Control Lever Pattern Conversion

Group 20: Adjustments

Pilot Shut-Off Valve Linkage

Group 25: Tests

JT05801 Clamp-On Electronic Tachometer Installation

JT05800 Digital Thermometer Installation

JT02156 Digital Pressure And Temperature Analyzer Installation

Hydraulic System Warm-Up Procedure

Hydraulic Oil Cleanup Procedure Using Portable Filter Caddy

Hydraulic Oil Cleanup Procedure Using Clean-Up Filter

Lower Boom With Engine Stopped

Swing Brake Release Procedure With Engine Stopped

Hydraulic Pump Start-Up Procedure

Swing Motor Start-Up Procedure

Swing Gearbox Start-Up Procedure

Propel Motor Start-Up Procedure

Hydraulic Oil Filter Inspection Procedure

Cycle Time Test

Pilot Pressure Regulating Valve Test And Adjustment

Valve Spool Actuating Pilot Pressure Test

Dig And Propel System Relief Valve 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

Flow Sense Valve Test

Pump Solenoid Valve Test

Pump Performance Test Using Cycle Time Method

Main Hydraulic Pump Displacement Adjustment

Pump Regulator Test And Adjustment-Minimum Flow

Pump Regulator High And Low Maximum Flow Test And Adjustment

Pump Regulator Check And Adjustment For Engine Pulldown

Pump Regulator Complete Adjustment For Engine Pulldown

Hydraulic Pump Flow Test

Pilot Hydraulic Pump Flow Test

Cylinder Drift Test-Boom, Arm, And Bucket

Swing Brake Release Pressure Test

Swing Motor Operating Leakage Test

Propel Motor Operating Leakage Test

TM Worksheet-792D LC Excavator