Go Bottom4300 PTO Indicator Light On
 | clayshooter
Join Date: Jun 2004 Posts: 1 S 
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2004-07-13 90826
The PTO is disengaged but the dash indicator is on. Igniton is lock out and when I jumped it at the starter it runs but the seat switch kills the tractor when you get off the seat. Is the PTO switch on the side of the transmission normally open or does it ground one of the wires when the PTO is disengaged? I have continuity at the switch in both the engaged and disengaged arms locations and I figured the switch is bad. I tried jumping the plug at the switch but that did nothing. Dealer offers no advice except "bring it in". Anyone with experience with this problem?
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| TomG
Join Date: Feb 2002 Posts: 5406 Upper Ottawa Valley 
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2004-07-14 90843
Maybe somebody has a wiring schematic. The safety system on my Ford wires the TX and PTO switches in series with the winding of a safety relay. The switches are closed in the disengaged and neutral positions. On this type system, the relay can't close if either switch is open, which locks out the starter.
I think the design used in my Ford is fairly common, but it doesn't have a seat switch or fuel solenoid. Jumping the starter takes the safety relay out of the system. If a switch were faulty, jumping it should allow the starter to engage. A shorted switch or wiring might show continuity in both PTO positions but still not engage the relay and jumping it may not work. In that case it'd likely blow a fuse. I don't know how the indicator light is wired but I'd check all fuses. It's real tough to troubleshoot w/o a wiring schematic. ....
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