Recent content by Mortten

There is a Packard 56 connector behind the engine. The ground runs from the negative battery cable through this connector to the rest of the unit. It was corroded. It would show continuity when everything was off. Turn the key on and start to draw current it would fail. Replaced it and all is...

I bench tested the solenoid by putting 12 volts from a battery to one terminal and the ground to the other. I also applied 12 volts to one large terminal and checked the other terminal with a dvm. The solenoid works as designed.

By bridging the hot to the starter cable.

I cleaned the battery and solenoid terminals. I also bench tested the solenoid. Starter spins jumping the solenoid.

The switch ground comes from the solenoid ground wire. The hour meter power does come from A. I found a wiring diagram. I’ll start testing components. I told him he can download a manual from Deere for $39.00

A couple other curiosities. When the brake is depressed and locked, the lights don’t work. When released they do. When you turn the key to lights/run the hour meter comes on. When you turn it to run the hour meter goes off. I’m thinking maybe ignition switch.

I do understand ground switching. How this tractor is wired is this: Ground cable goes from battery to the frame. A wire crimped into the same lug as the ground cable goes behind the engine to a splice. From the splice wires go to the solenoid and the headlights. Basically a straight shot from...

One small terminal is always grounded as the solenoid is not grounded through the base. With the switch off that terminal has continuity to ground as it should. When the switch is is any other position that continuity is lost thus rendering the solenoid inoperable because it lacks a ground. Very...

Buddy has an John Deere LA120. Will not crank. With the key off there is continuity to ground on the solenoid terminal. When you turn the key on that ground is lost yet it is wired directly to the neg battery cable. Can anyone give me some direction?