D17 key switch

[Scorr83]

I just replaced the key switch on my d17 and it starts and runs good but wont shut off.Im new to this tractor I thought it was wired right but guess not

 

[old]

A lot more info is needed to help us help you. 6 or 12 volts?? Generator or alternator??

 

[Aaron SEIA]

If it worked with the old key switch and you replaced it with an identical one, either you've got wires attached wrong, or the switch is defective. Use a multi meter and wiring diagram to see what should have power when they key is off and test the switch.
AaronSEIA

 

[Jim.ME]

You asked for a wiring diagram for this tractor about a week ago. Have you rewired more than just the switch? Has it been converted to an alternator?

 

[Scorr83]

No just the key switch but it was chopped up and gone
when I got it

 

[Scorr83]

Its 12v and gen

 

[Jim.ME]

If it is wired by the diagram there should be no issue, unless you have a defective component. How did you confirm where the chopped off wires went from the switch? Before starting, key off, is there power to the coil? That would indicate you have a wire in the wrong place.

The diagram shows a resistor bypass wire from the solenoid. Does it have one? If so, try unhooking it from the solenoid and see if that makes a difference.

 

[Scorr83]

When the key is off no power to coil but it still runs?????

 

[Jim.ME]

(quoted from post at 17:29:51 11/22/22) When the key is off no power to coil but it still runs?????

1. Is that with the engine stopped before starting, or after you started it and shut the key off?

2. Engine stopped, key off, power or no power at the coil?

3. Key on, engine running, power or no power at the coil?

4. Key off, engine running, power or no power at the coil?

5. Does it have a resistor in the wire going to the coil?

6. Does it have a bypass wire from the starter solenoid hooked to the coil side of the resistor, or to the coil?

7. When you say it runs with the key off can you drive and operate it normally at that time, or is it what is called "dieseling" and stalls itself out after a few seconds?

This post was edited by Jim.ME on 11/22/2022 at 03:00 pm.