tn 75 da will not move

[bo69]

I replaced the engine wiring harness on my TN 75 DA new holland rat got on the warm engine and chewed it up now it runs but will not move forward or backward no codes are showing up and don't see any more bad wires can anyone give me some help on what is going on with my tractor Thanks

 

[Jerry/MT]

I replaced the engine wiring harness on my TN 75 DA new holland rat got on the warm engine and chewed it up now it runs but will not move forward or backward no codes are showing up and don't see any more bad wires can anyone give me some help on what is going on with my tractor Thanks

Check the transmission electrical connectors for loose connections, corrosion , rat damage, etc.

 

[ovrszd]

Only other thing would be to ensure the harness was the correct one?? All wires had a place on the new harness. No extra connectors hanging unplugged??

Another thing to check is wiring grounds. Making sure there's not an individual ground wire chewed in two somewhere??

I can't think there's any technical procedures that would need performed to "reset" the trans module.

But then, we don't know if there were any time when a "short" was created by the chewing which could possibly damage the trans system. Is the tractor electronic power shuttle or electronic power shift??

 

[IH3444]

Do any computer parameters need to be down loaded, or reset?

 

[1970boss302]

Same thing happened to my TN75...what did you have to do to get shuttle shift going?

 

[Klm123]

Left side on the chassis has 3 solenoids 2 of them are one on top the other they are responsible for foward and reverse n the one to the back is for clutch smoothness and immobilisation . Sometimes it's stuck closed allowing immobilisation but most times it's just ur hydraulic filter , bleeding the hydraulic system on these things are stupid annoying. But if ur steering is nice and easy while engine on but still won't move then the system is well bleeded and could be that solenoid. If it's getting a solid 12 volts u won't go anywhere