PowerTech 6.8L 6068 & 8.1L 6081 John
deere Compressed Natural Gas Enginesctm113 Diagnostic Technical Manual
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The John Deere PowerTech 6.8L 6068 and 8.1L 6081
Compressed Natural Gas (CNG) Engines Diagnostic Technical Manual (CTM113) is a detailed guide for diagnosing, troubleshooting, and maintaining John
Deere CNG engines. Designed for professionals, this manual provides essential technical information to ensure optimal performance and reliability.
Manual Specifications:
• Title: John Deere PowerTech 6.8L 6068 & 8.1L
6081 Compressed Natural Gas Engines Diagnostic Technical Manual
• Manual Number: CTM113
• Applicability: John Deere PowerTech 6068 (6.8L) and 6081 (8.1L) CNG engines.
Content and Features:
• Diagnostics and Troubleshooting: Step-by-step fault identification for the engine control system, fuel delivery, and ignition systems.
• CNG Fuel System: Detailed procedures for servicing injectors, regulators, fuel tanks, and delivery components.
• Electronic Control Units (ECU): Instructions for diagnosing electronic systems, sensors, and error codes.
• Ignition System: Maintenance of spark plugs, ignition timing, and coils.
• Technical Illustrations: Exploded diagrams and clear schematics for repair clarity.
• Cooling and Lubrication Systems: Inspection and maintenance guidance for radiators, oil pumps, and related components.
• Emission Systems: Instructions to ensure compliance with natural gas engine emission standards.
Maintenance Procedures:
• Scheduled service intervals for optimal engine performance.
• Lubrication points and CNG system inspection routines.
• Component replacement procedures for injectors, spark plugs, and filters.