Overview
The John Deere PowerTech 6.8L 6068 gas engine repair service manual provides a technical reference for the covered equipment. Its purpose is to help locate information relevant to inspection, troubleshooting, servicing and repair, as applicable to the supplied publication.
The documented contents outline identifies section —repair, group 00—safety, group 01—general information and group 02—fuels, lubricants, and coolant. The table below lists selected source-supported subjects; consult the publication for exact service procedures and specifications.
Table of Contents
John Deere PowerTech 6.8L 6068 Manual
Main sections and selected subjects identified in the source documentation:
- SECTION —Repair
- Group 00—Safety
- Group 01—General Information
- Group 02—Fuels, Lubricants, and Coolant
- Group 03—Engine Mounting
- INDX Group 04—Engine Rebuild Guide
- Group 05—Cylinder Head and Valves
- Group 10—Cylinder Block, Liners, Pistons, and Rods
- Group 15—Crankshaft, Main Bearings, and Flywheel
- Group 16—Camshaft and Timing Gear Train
- Group 20—Lubrication System
- Group 25—Cooling System
- Group 30—Air Intake and Exhaust System
- Group 35—Fuel Supply System
- Group 40—Starting and Charging System
- Group 45—Electronic Engine Controls
- Group 50—Miscellaneous Accessories
- Group 99—Dealer Fabricated Tools
Using the Technical Reference
Use the identified sections to locate relevant information, and follow any model-specific instructions, limits and precautions in the original documentation.










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