John Deere 85G Excavator Repair Technical Manual(TM12870)
This manual is written for an experienced technician. Essential tools required in performing certain service work are identified in this manual and are recommended for use.
Live with safety: 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 test sections help to quickly 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.
Technical manuals are concise guides for specific machines. They are on-the-job guides containing only the vital information needed for diagnosis, analysis, testing, and repair.
Fundamental service information is available from other sources covering basic theory of operation, fundamentals of troubleshooting, general maintenance, and basic type of failures and their causes.
Table Of Contents:
John Deere 85G Excavator Repair Technical Manual
Section 00—General Information Group 0001—Safety Group 0003—Torque Values 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 0510—Cooling System Group 0520—Intake System Group 0530—External Exhaust Systems Group 0560—External Fuel Supply Systems Section 07—Damper Drive (Flex Coupling) Group 0752—Elements 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 and Air Conditioning Section 32—Blade (Backfill) Group 3201—Blades Group 3260—Hydraulic System 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