John Deere 790 and 792 Crawler Excavators Diagnostic and Repair Manual TM1320

The John Deere 790 and 792 Crawler Excavators Diagnostic and Repair Manual TM1320 provides repair, diagnostic, operation, adjustment, and test information for the 790 and 792 Crawler Excavators. It covers general specifications, tracks, axles and suspension, engine systems, electrical systems, operator’s station, pneumatic systems, excavator components, swing systems, operational checkout procedures, power train, hydraulic systems, heating and air conditioning, and dealer fabricated tools.

Specifications: SM

Brand: John Deere Excavators
Type of Document: Operation and Test Manual
Type of Equipment: Crawler Excavator
Model: 790, 792
Manual Number: TM1320
Language: English
Format: PDF

Details:

Introduction

General Information

Specifications
Torque Values
Fuels and Lubricants

Tracks

Service Equipment and Tools
Specifications
Track Chain
Sprocket
Upper Roller
Lower Roller
Front Idler
Track Adjuster and Recoil Spring
Track Sag

Axles and Suspension System

Axle Shaft, Bearings and Reduction Gears
Hydraulic System

Engine

Remove and Install Engine
Crankshaft and Main Bearings
Camshaft and Valve Actuating Means
Connecting Rods and Pistons
Cylinder Block
Oiling System
Ventilating System
Cylinder Head and Valves
Exhaust Manifold
Fuel Injection System
Intake Manifold
Turbocharger
Water Pump
Thermostats, Housings and Water Piping
Oil Cooler
Fuel Transfer Pump
Starting Motor and Fastenings
Flywheel, Housing and Fastening

Engine Auxilliary Systems

Cold Weather Starting Aids
Cooling Systems

Electrical Systems

Batteries, Support and Cables
Alternator, Regulator and Charging System Wiring
Instruments and Indicators

Operator’s Station

Removal and Installation
Operator Enclosure
Heating and Air Conditioning

Pneumatic System

Pump and Drives

Excavator

Buckets
Controls Linkage
Frames
Hydraulic System

Swing, Rotation or Pivoting System

Mechanical Drive Elements
Hydraulic System

Operational Checkout Procedures

Gauges and Indicators Check with Engine Stopped
Control Levers and Pump Control Rods Check
Gauge, Indicator, and Speed Control Check (Engine Running)
Hydraulic System Checks
Accessories Check-Key Switch On for Entire Test
Seat, Doors, Windows, Latches, and Locks Check

Engine Operation and Tests

Theory of Operation
System Operational Checkout Procedure
System Diagnostic Checks
Adjustments
Tests

Electrical System Operation and Test

Service Equipment and Tools
Theory of Operation
Monitor Checkout Preocedure
Sensor Specifications
Troubleshooting Reference
Electrical Schematic

Power Train And Test

Theory of Operation
Diagnostic Information
Tests

Hydraulic System Operation and Test

Theory of Operation
Diagnostic Information
Performance Specifications
Adjustments
Tests
Hydraulic Schematic

Miscellaneous Components Operation and test

Track Sag Adjustment
Theory of Operation
Tests

Heating and A/C System Operation and Test

Air Conditioning System Operation
Air Conditioning System operational Checkout Procedure
Refrigerant (R-12) Cautions
Air Conditioning System Test
Expansion Valve Test
Checking and Adding Compressor Oil
Discharging the System
Flushing the System
Purge the System
Evacuate the System
Charging the System

Dealer Fabricated Tools

DFT1087 Track Recoil Spring Disassembly and Assembly Guard Tool
Rotary Manifold Lifting Tool
ST-1909 Puller Assembly
ST-1912 Puller Assembly
ST-1930 Puller Assembly
ST-1947 Puller Assembly
ST-1949 Puller Assembly
ST-1950 Puller Assembly
ST-1951 Puller Assembly
ST-2003 Seal Sleeve Installer
ST-2004 Square Ring Installer
ST-2155 Bearing Installer
ST-2157 Seal Installer
ST-2160 Bearing Installer
ST-3013 Bering Nut Wrnech
ST-3018 Drive Disk Wrnech
ST-3909 Hubnut Wrench
ST-3920 Hubnut Wrench
ST-4078 Spring Holder
ST-5003 Work Bench
ST-5011 Drive Disc Fixing Tool
ST-6910 Measuring Tool Assembly
ST-6911 Drive Disc Fixing and Measuring Tool
ST-7007 Rotor Support
ST-7008 Cap
JT-38001 Work Bench
ST4920 Track Recoil Spring Disassembly and Assembly Tool

John Deere 790 and 792 Crawler Excavators Diagnostic and Repair Manual TM1320