John Deere 790D 790D-LC 892D-LC Excavator Operation and Test Workshop Repair Manual TM1395 PDF - MJODTM1395.zip
A full-service Operation, Test and Diagnostics guide—complete with electrical wiring schematics—for the John Deere 790D, 790D-LC and 892D-LC Excavator, packed with every technical detail needed to maintain, troubleshoot and repair these machines the way trained technicians do.
Inside the John Deere 790D, 790D-LC and 892D-LC Excavator workshop Operation and Test manual you'll find:
* 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.
TM1395 - John Deere 790D, 790D-LC, 892D-LC Excavator Technical Manual - Operation and Test.PDF
TM1395 - John Deere 790D, 790D-LC, 892D-LC Excavator Technical Manual - Operation and Test.EPUB
t660iap - 892DLC Hydraulic Schematic.pdf
t6444ad - 790dlc schematics.pdf
t6467aa - 790DLC Hydraulic Schematic.pdf
Total Pages: 612 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English
MAIN SECTIONS
Foreword
Operational Checkout Procedure
Operational Checkout Procedure
Engine
Theory Of Operation
System Operational Checks
Diagnostic Information
Adjustments
Tests
Electrical System
Theory Of Operation
System Operational Checks
Diagnostic Information
Tests
Power Train
Theory Of Operation
System Operational Checks
Diagnostic Information
Adjustments
Tests
Hydraulic System
Theory Of Operation
System Operational Checks
Diagnostic Information
Adjustments
Tests
Heating And Air Conditioning
Theory Of Operation
System Operational Checks
Adjustments
Test
tm1395 - 790D, 790D-LC and 892D-LC Excavator
Table of Contents
Foreword
Section 9005: Operational Checkout Procedure
Group 10: Operational Checkout Procedure
Operational Checkout Record Sheet—790D, 892D-LC
Operational Checkout Procedure
Section 9010: Engine
Group 05: Theory Of Operation
6466 John Deere Engine—Use CTM1
Description
Cross Section Of Engine
Engine Speed Control System Operation
Group 10: System Operational Checks
6466 John Deere Engine—Use CTM1
System Operational Checks
Group 15: Diagnostic Information
6466 John Deere Engine—Use CTM1
Diagnose Engine Malfunctions
Group 20: Adjustments
6466 John Deere Engine—Use CTM1
Fan Belt Tension Adjustment
Engine Speed Control Linkage Adjustment
Speed Control Lever Tension Adjustment
Engine Speed Adjustments
Fuel Shut-Off Cable Adjustment
Group 25: Tests
6466 John Deere Engine—Use CTM1
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 Test
Air Intake System Leakage Test
Radiator Air Flow Test
JT05529 Air Flowmeter Test Record
Section 9015: Electrical System
Group 05: Theory Of Operation
Battery Operation
Diagnose Battery Malfunctions
CHECK BATTERY ELECTROLYTE LEVEL AND TERMINALS
Procedure For Testing Batteries
Using Booster Batteries—24 Volt System
Visually Inspect Electrical System
Multimeter
Battery Specifications
Replacing Fuses
Power Circuit Operation
Starting Circuit Operation
Charging Circuit Operation
Alternator Operation
Charge System Load Dump Circuit Operation
Gauge And Indicator Circuit
Accessory Circuits
Engine Speed And Pump Displacement Control System Operation
Engine Speed And Pump Displacement Electrical Control Circuit Operation
Engine Speed And Pump Displacement Control Operational Chart
Group 10: System Operational Checks
System Operational Procedure
Group 15: Diagnostic Information
Diagnose Electrical System Malfunctions
Wiring Diagram Information
Connector And Ground Locations
Component Location
Group 25: Tests
Service Equipment And Tools
HOW TO USE THE TEST SECTION
Common Circuit Test
Battery Testing
Battery Specifications
Replacing Fuses
Power Circuit Test
Start Circuit Testing
Charging Circuit Test
Load Dump Relay Test
Gauge And Indicator Test
Engine Coolant Temperature Gauge Sender
Fuel Gauge Sender
Accessory Circuit Test
Accessory Circuit (Wiper And Air Conditioning Circuits)
Engine Speed And Pump Displacement Control Circuit Test Diagrams
Engine Speed And Pump Displacement Control Circuit Test
Electrical Schematic Symbols
Section 9020: Power Train
Group 05: Theory Of Operation
Track Adjuster Operation
Propel Gearbox Operation
Propel Motor Operation
Propel Circuit Operation—790D
Propel Circuit Operation—892D-LC
Rotary Manifold Operation
Propel Control Valve Operation
Counterbalance Valve Neutral Operation
Counterbalance Valve Propel Operation
Counterbalance Valve Braking Operation
Propel Motor Crossover Relief Valve Operation—(Serial No. —010999)
Propel Brake Operation
Group 10: System Operational Checks
System Operational Procedure
Group 15: Diagnostic Information
Diagnose Undercarriage Components Malfunctions
Diagnose Propel System Malfunctions
Measure Track Bushing Wear
Measure Track Chain Pitch
Measure Track Link Wear
Measure Track Shoe Grouser Wear
Measure Track Lower Roller Wear
Measure Upper Track Roller Wear
Undercarriage Component Location
790D Propel Circuits Component Location
892D-LC Propel Circuits Component Location
Group 20: Adjustments
Adjust Track Sag
Group 25: Tests
JT05801 Clamp-On Electronic Tachometer Installation
JT05800 Digital Thermometer Installation
Propel Speed Cycle Time
Propel System Relief Valve Test And Adjustment—790D
Propel System Relief Valve Test And Adjustment—892D-LC
Propel Motor Crossover Relief Valve Test And Adjustment—790D
Propel Motor Crossover Relief Valve Test And Adjustment—892D-LC
Propel Motor Operating Leakage Test
Swing Bearing Wobble Test
Section 9025: Hydraulic System
Group 05: Theory Of Operation
Hydraulic System
Pilot Pump Operation
Pilot System Operation—790D
Pilot System Operation—892D-LC
Pilot Filter Operation
Solenoid Valve And Pilot Pressure Regulating Valve Operation
Solenoid Valve Operation—Energized
Engine Speed Control Operation
Check Block Operation
Main Hydraulic Pump Displacement Operation
Shut-Off Valve Operation
Pilot Controller Operation—Neutral
Pilot Controller Operation—Metering
Pilot Controller Operation—Full Stroke
Propel Pilot Controller Operation—Neutral
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—790D
Control Valve Passages—790D
Control Valve Passages—892D-LC
Main Control Valve 892D-LC
System Relief Valve Circuit Operation—790D
System Relief Valve Circuit—892D-LC
System Relief And Swing Circuit Relief Valve Operation
Dig System Relief Valve Operation—892D-LC
Circuit Relief Valve Operation
Flow Combiner And Swing Brake Release Valve Circuit—790D
Flow Combiner And Swing Brake Release Valve Circuit—892D-LC
Flow Sensing Valve Operation
Bucket And Auxiliary Work Circuits Operation
Boom Raise Work Circuit Operation
Boom Lower Work Circuit Operation
Arm In Work Circuit Operation
Arm Out Work Circuit Operation
Swing Work Circuit Operation
Combined Functions Operation
Swing Motor Operation—790D Serial No. (—007786) 892D-LC (—005477)
Swing Motor Operation—790D Serial No. (007787—) 892D-LC (005478—)
Swing Crossover Relief And Make-Up Valves Operation
Brake Release Circuit Operation
Swing Gearbox Operation
Cylinder Operation
Splitter Drive Operation
Main Hydraulic Pump Operation
Pump Regulator Components Operation
Pump Minimum Displacement Operation
Pump Displacement Increasing Operation
Pump Maximum Displacement Operation
Pump Displacement Decreasing Operation
Constant Horsepower System Operation
Summation System Operation
High-Low Maximum Displacement Operation
Group 10: System Operational Checks
System Operational Procedure
Group 15: Diagnostic Information
Diagnose Hydraulic System Malfunctions
Diagnose Pilot Circuit Malfunctions
Diagnose Dig Circuit Malfunctions
Diagnose Swing Circuit Malfunctions
Hydraulic Circuit Symbols
Pressure And Return Circuits Component Location
Boom, Arm, Bucket And Swing Circuits Component Location
Pilot Circuit — Controllers To Flow Regulator Component Location
790D Pilot Circuit — Flow Regulator To Main Control Valve Assembly Component Location
892D-LC Pilot Circuit —Flow Regulator To Main Control Valve Assembly Component Location
790D Pilot Circuit — Swing Motor, Engine Speed, And Pump Displacement Controls Component Location
892D-LC Pilot Circuit — Swing Motor, Engine Speed, And Pump Displacement Controls Component Location
Pilot Control Lever Pattern Information
Group 20: Adjustments
Pilot Shut-Off Valve Linkage
Main Hydraulic Pump Displacement Adjustment
Group 25: Tests
JT05801 Clamp-On Electronic Tachometer Installation
JT05800 Digital Thermometer Installation
Cycle Time Test
Hydraulic Pump Start-Up Procedure
Pilot System Regulating Valve Test And Adjustment—790D And 892D-LC
System Relief Valve Test And Adjustment—790D
System Relief Valve Test And Adjustment —892D-LC
Circuit Relief Valve Test And Adjustment
Swing Motor Crossover Relief Valve Test And Adjustment
Flow Sensing Valve Test
Hydraulic Pump Regulator Test And Adjustment—Minimum Flow—790D
Hydraulic Pump Regulator Test And Adjustment—Minimum Flow—892D-LC
Hydraulic Pump Regulator Test And Adjustment—Maximum Flow/High—Low Maximum Flow
Hydraulic Pump Regulator Test And Adjustment (Engine Pulldown)—790D
Hydraulic Pump Regulator Test And Adjustment (Engine Pulldown)—892D-LC
Hydraulic Pump Flow Test—790D
Hydraulic Pump Flow Test—892D-LC
Cylinder Drift Test—Boom, Arm And Bucket
Swing Motor Leakage Test
Hydraulic Oil Cleanup Procedure Using Portable Filter Caddy
Pilot Hydraulic Pump Flow Test — 790D/892D-LC
Section 9031: Heating And Air Conditioning
Group 05: Theory Of Operation
Proper Refrigerant Handling
R12 And R134A Refrigerant Cautions
Air Conditioning System Operation
Receiver—Dryer Operation
Expansion Valve Operation
Temperature Control Switch Operation
Compressor Relief Valve Operation
Group 10: System Operational Checks
Air Conditioning Operational Checks
Group 20: Adjustments
Proper Refrigerant Handling
R12 And R134A Refrigerant Cautions
R12 Component Oil Charge
R12 Refrigerant Recovery, Recycling Station Installation Procedure
R12 Refrigerant Evacuation And Charging Station Installation Procedure
Recover R12 System
Evacuate R12 System
Charge R12 System
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: Test