John Deere PowerTech 10.5L, 12.5L Diesel Engines Level 6 Lucas Electronic Fuel Systems Repair Manual (CTM188)

This manual is written for an experienced technician. Special tools required in performing certain service work are identified in this manual and are recommended for use.

This manual is written for an experienced technician. Special tools required in performing certain service work are identified in this manual and are recommended for use. This manual covers the fuel system, air system and engine control unit (ECU) on John Deere electronic controlled engines.

Use this component technical manual in conjunction with the base engine repair manual and the respective machine technical manual. See repair manuals for information on component removal and installation, and gaining access to the components.

This manual is divided into several parts: these include but are not limited to repair, theory of operation, diagnostics and tools. Repair procedures are provided for the fuel system, air system and electrical engine control system. The theory of operation section contains information that explains how these engine subsystems operate. The diagnostics section helps identify the cause of engine
problems.

Applicable special tools and other materials needed to do the job, specifications, and helpful reference materials are covered in separate groups toward the end of this manual. Fundamental service information is available from other sources covering basic theory of operation, fundamentals of troubleshooting, general maintenance, and basic types
of failures and their causes.

This manual contains SI Metric units of measure followed immediately by the U.S. customary units of measure. Most hardware on these engines is metric sized.