BBI spreader w/ Teejet ISO controller, need ideas for elegant solution
Triticum Agricolam
Posted 3/13/2026 09:25 (#11583255 - in reply to #11582772)
Subject: RE: BBI spreader w/ Teejet ISO controller, need ideas for elegant solution



Eastern Washington State
I have a BBI spreader with a TeeJet ISO controller as well. The TeeJet ISO interface definitely leaves room for improvement, but its serviceable. I run mine through a Trimble GFX-750, though I have a FMX on another tractor so I know what you are working with there.

Do you perhaps just need a task controller unlock for your FMX? With my GFX, once I enable the master switch on the ISO screen I can turn the product on & off using the master switch for the Trimble and adjust the rate from the Trimble as well. I never have to touch the ISO screen. I do variable rate with mine and it works great.
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