3cpowertrain
Member
Hi has anyone got a wiring Diagram for a John Deere 7700 Tractor. Happy to pay.!! Any help appreciated
Check the wires down to the draft sensor, if I remember right they run just behind one of the lift rams and can get crushed by dirt or small stones that get lodged behind the ram.Morning the draft sensor.. that’s correct 5 volt feed out of the HCU. However we only have 1.7 volts. With the sensor connected and disconnected. Input voltage to HCU seem good.!! But would like to check the system through properly with a wiring diagram. Thanks
I can’t remember what else the 5v supply powers, I think it goes to the hitch position as well as the depth control etc. If there’s a wire earthing on any of these systems you’ll get a voltage drop at the HCU.Hi thanks yes they are all ok. We have low voltage directly out of the HCU wire to the sensor
So, you have 1.7 volts at wire 883 as it leaves the HCU??Morning the draft sensor.. that’s correct 5 volt feed out of the HCU. However we only have 1.7 volts. With the sensor connected and disconnected. Input voltage to HCU seem good.!! But would like to check the system through properly with a wiring diagram. Thanks
Whats the fuse number. F ???Morning. Keeps blowing the accessories relay fuse. And low voltage to the draft link sensor switch. She has had some previous repairs and modifications to some areas of the wiring over the years from what I can see.!!