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Read articles →An owner-operator's quick how-to on replacing the PTO engagement switch on a TC45DA after it falsely signaled the PTO as engaged and prevented starting. Chris shows where the switch is located under the tractor, how it snaps in and out without tools, the tab-prying trick to lock it in place, and a note about dielectric grease. Best for TC45DA owners troubleshooting the same no-start symptom.
An owner-operator channel run by a small Pennsylvania farm and excavating family, so expect practical, experience-based repairs with no commercial agenda.
The PTO switch can fail and falsely signal to the tractor that the PTO is engaged, which prevents the tractor from starting even though the lever is pulled back.
It is located under the tractor, up in a metal holder, and requires crawling underneath to access it.
Unplug the old switch, pop it out the top of the hole, pop the new one in from the top, plug it in, then pry open small plastic tabs to lock it in place and add dielectric grease.
