John Deere 6068 service

Servicing a John Deere 6068 for the first time on a boat I was just placed on. Ran into a few hiccups finished none the less.
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[@bobl78]

How much fuel filters do these have ? What improves if you have like 4 fuel filter in a row ?

[@epicfred]

There is a set of Racors, then the John Deere primary and secondary filters. So three in a row.