Caterpillar 3406E Systems Operation, Testing, & Adjusting Manual (5DS, 6TS, 5EK, 1LW)


NOTE: If you’re performing an engine overhaul we recommend that you purchase the complete overhaul manual set that we have created in conjunction with Caterpillar. By doing this you’ll have all of the information necessary to properly overhaul your engine.
View Overhaul Set Here

This factory printed Caterpillar 3406E Systems Operation manual is for any mechanic who is performing diagnostics, repair or overhaul on this Caterpillar 3406E engine.  This factory manual provides the proper information in order to ensure you are able to perform the job correctly.

Caterpillar 3406E Systems Operation, Testing, and Adjusting Manual

Engine Serial Number Prefix: (5DS, 6TS, 5EK, 1LW)

 This Caterpillar manual will assist you in the following areas:

Manual Coverage:

  1. Systems operations
  2. Performing testing
  3. Adjusting procedures

System Operation Section

  • Engine Design
  • General Info
  • Electronic Control System Components
  • Fuel System
  • Inlet & Exhaust System
  • Lubrication System
  • Cooling System
  • Electrical System

Testing & Adjusting Section

  • Electronic Control System
  • Fuel System
  • Inlet & Exhaust System
  • Lubrication System
  • Cooling System
  • Belt Tension Info
  • Electrical System
  • Block


  • BrakeSaver Troubleshooting
  • BrakeSaver Pull-Down RPM Check
  • BrakeSaver “Klunk” Check
  • Engine Vibration Troubleshooting has been working with the Caterpillar print facility since 1999, ensuring the correct factory service information is available to fleets, municipalities, water districts, independent service facilities & more.  We at have always felt strongly that it is critical that the industry mechanics be supplied with the correct torque specifications, dimensions & procedures, electronic diagnostic information be made available.  The changes in the trucking industry over the decades have made it critical to “do the job once, do the job right”.

Procedures that may have been acceptable years ago would now likely cause rapid failures in a truck engine if they were used on present day engines & drivetrains.


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