I am having problems with the starter kicking in on my international 574 diesel.the voltage is there to kick the soilonoid in but when I hook it to the terminal nothing it don't work.but the starter is all been redone new soilonoid and all.it works good when I short it across but from the switch nothing.any ideas ?
- Thread starter Kevin OH
- Start date
Brownie 450
Member
Read your voltage on that terminal when the key is held in start position. There is possibly a bad connection at a lug on any wire in the start circuit. The best way to isolate the problem is with a jumper wire with alligator clips on the end.Work your way back from the solenoid toward the ignition switch to find the problem. Bear in mind, that the problem could be a faulty ignition/ start switch.
Janicholson
Well-known Member
The small wire should have voltage when in the S position of the key. The starter relay should engage and spin the engine when that little terminal gets voltage. If you take the wire off of the terminal and use a jumper to that small terminal from the battery non grounded terminal, it will either work (crank) or not work (not crank). If it still does not crank, the fault is either a faulty ground to the starter/solenoid combo, or a bad solenoid. If it does crank the problem is in the wire coming from the ignition switch, or the supply to the switch.
A volt meter will measure voltage on and open ended wire easily. This can fool a person into believing it is working. A poor connection, or bad wire can pass enough current to read good voltage, but not supply any where near enough to pull in the solenoid. If you leave it attached to the solenoid when checking its voltage when trying to crank, you will find your answer related to the switch and wires. !2v it is the solenoid, less than 6v it is the switch/wires. Jim
A volt meter will measure voltage on and open ended wire easily. This can fool a person into believing it is working. A poor connection, or bad wire can pass enough current to read good voltage, but not supply any where near enough to pull in the solenoid. If you leave it attached to the solenoid when checking its voltage when trying to crank, you will find your answer related to the switch and wires. !2v it is the solenoid, less than 6v it is the switch/wires. Jim
Owen Aaland
Well-known Member
That is a classic example of a poor connection. You have voltage when there is no load on the wire but as soon as you add a load your poor connection becomes high resistance. Since you know the starter works when jumping the battery terminal to the S terminal you know the starter works Okay. The problem is in the tractor harness, switches or connections.
Power comes from the battery terminal at the starter up to the ammeter to the key switch to the safety start switch on the clutch pedal and then back to the S terminal on the solenoid. Your problem is in there somewhere.
Power comes from the battery terminal at the starter up to the ammeter to the key switch to the safety start switch on the clutch pedal and then back to the S terminal on the solenoid. Your problem is in there somewhere.
caterpillar guy
Well-known Member
Start with the clutch pedal switch. That is the biggest issue with ours. I just plug a jumper wire in to test it if it starts you just found your problem.
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