tz25 da wont start

[jinman]

I'm not sure why your PTO light is coming on. Do you have the PTO engaged? I'm also not completely familiar with your TZ25DA, but I would check power to the headlights when the glow plugs quit working. If the headlights work, then you probably have a loose wire or the glow plug timer may be timed out or bad. For sure, if the PTO light is on, the tractor will not start. You may well have a safety module issue, but I'd need a schematic and hands-on troubleshooting to prove that. I am not going to suggest that you replace it if you are not sure it is bad. It just costs too much to "Easter Egg." It does sound like you have a faulty glow plug timer, but they are not cheap either at around $70 each. I'd suggest a cheaper alternative on eBay, but your being in N.S.W. is gonna put a hitch in that solution.

You mentioned jumpering the fuel solenoid to get it energized. You can also hot wire your starter to get it to operate by using a jumper between the large connector where the lead comes from the battery and the small connector to the solenoid. By touching a jumper, the starter should engage and turn over. If it does not, then you have a bad starter or dirty battery terminals; maybe a loose ground wire connection to the chassis from the battery cable. If the fuel solenoid is jumpered and you engage the starter, the engine will start whether it is in gear and even with the ignition turned off. Once the engine starts, the only way to stop it is pull the wire to the fuel solenoid. Just remember, if you do this, you are bypassing all safety features. It's an emergency way to get a tractor moved or onto a trailer, but not good practice to operate in such an unsafe mode. By all means, make it temporary. This will just tell you if the battery connections are all good and if the starter will function properly.

 

[craigsurf]

Reason for PTO light was to engage to test if safety switch working so will take this out of equation from here on Jim.
have not lost any power to headlights or instrument panel .
If glow plug light mysteriously appears again as it has the last couple of evenings i will hold to see if it times out .

What i need to do is to systematically run through the electrical testing and indicate on the wiring schematics where and when i have power as
i have been doing mostly yet i have been jumping around a bit with this causing more testing . However i need to record this on the wiring diagram each step and then send diagram to you.

Hopefully this will better assist in putting yourself or someone in the picture as to where i can target problem

Thanks

Craig