John Deere 120 Excavator Repair Service Manual
John Deere 120 Excavator Repair Service Manual

John Deere 120 Excavator Repair Technical Manual

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Manual Included:

  • Repair Technical Manual: 614 pages (TM1660)
  • Operation and Test Manual: 626 pages (TM1659)

Specifications:

  • Brand: John Deere
  • Model: 120
  • Type: Excavator
  • Manuals: Repair Technical Manual and Operation and Test Manual
  • Publication Numbers: TM1660 and TM1659
  • Language: English
  • Format: PDF
Categories: ,

Description

Table of Contents

Repair Manual- TM1660

SECTION 00—General Information
Group 0001—Safety
Group 0002—General Specifications
Group 0003—Torque Values
Group 04—Fuels and Lubricants
SECTION 01—Tracks
Group 0130—Track System
SECTION 02—Axles and Suspension Systems
Group 0250—Axle Shaft, Bearings, and Reduction Gears
Group 0260—Hydraulic System
SECTION 04—Engine
Group 0400—Removal and Installation
SECTION 05—Engine Auxiliary Systems
Group 0505—Cold Weather Starting Aids
Group 0510—Cooling System
Group 0515—Speed Controls
Group 0520—Intake System
Group 0560—External Fuel Supply Systems
SECTION 07—Dampener Drive (Flex Coupling)
Group 0752—Elements
SECTION 16—Electrical System
Group 1671—Batteries, Support, and Cables
Group 1672—Alternator, Regulator, and Charging System Wiring
Group 1674—Wiring Harness and Switches
Group 1675—System Controls
Group 1676—Instruments and Indicators
SECTION 17—Frame or Supporting Structure
Group 1740—Frame Installation
Group 1749—Chassis Weights
SECTION 18—Operator’s Station
Group 1800—Removal and Installation
Group 1810—Operator Enclosure
Group 1821—Seat and Seat Belt
Group 1830—Heating
SECTION 33—Excavator
Group 3302—Buckets
Group 3340—Frames
Group 3360—Hydraulic System
SECTION 43—Swing or Pivoting System
Group 4350—Mechanical Drive Elements
Group 4360—Hydraulic System
SECTION 99—Dealer Fabricated Tools
Group 9900—Dealer Fabricated Tools

Operation and Test Manual- TM1659

SECTION 9000—General Information
Group 01—Safety
Group 02—General Specifications
Group 03—Torque Values
Group 04—Fuels and Lubricants
SECTION 9005—Operational Checkout Procedure
Group 10—Operational Checkout Procedure
SECTION 9010—Engine
Group 05—Theory of Operation
Group 15—Diagnostic Information
Group 20—Adjustments
Group 25—Tests
SECTION 9015—Electrical System
Group 05—System Information
Group 10—System Diagrams
Group 15—Sub-System Diagnostics
Group 20—References
SECTION 9020—Power Train
Group 05—Theory of Operation
Group 15—Diagnostic Information
Group 20—Adjustments
SECTION 9025—Hydraulic System
Group 05—Theory of Operation
Group 15—Diagnostic Information
Group 20—Adjustment
Group 25—Tests

 

This manual is written for an experienced technician and Owners. Essential tools required in performing certain service work are identified in this manual and are recommended for use. Read the safety messages in the introduction of this manual and the cautions presented throughout the text of the manual.

Technical manuals are divided in two parts: repair and operation and tests. Repair sections tell how to repair the components. Operation and tests sections help you identify the majority of routine failures quickly. Information is organized in groups for the various components requiring service instruction. At the beginning of each group are summary listings of all applicable essential tools, service equipment and tools, other materials needed to do the job, service parts kits, specifications, wear tolerances, and torque values.

They are concise guides for specific machines. They are on-the-job guides containing only the vital information needed for diagnosis, analysis, testing, and repair.

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