Caterpillar provides an operation and maintenance manual for its 3406E engine online at Safety.CAT.com. To access the manual, type "3406E Maintenance" in the search bar at the upper right of the home page, and then click the 3406E Maintenance Interval Manual link to open the manual in PDF format.
The maintenance interval manual provides a service schedule organized by optional and required engine inspections. Replacement parts for the 3406E engine should only be installed by professionals approved by Caterpillar.
Caterpillar is an American company headquartered in Illinois. The company provides locomotives, diesel and natural gas engines, construction equipment, and financial services. It was founded in 1952 and
employs more than 100,000 people around the world as of 2015.