starter install

[Oldiron1955]

I have a friend who has a fordson and we just installed a new 12 volt starter. There is a ground lug on the motor housing and a positive post on the solenoid with 2 large spade terminal posts. Under the positive post there are 2 smaller spades for the start function only neither is marked with the usual s for start from the key and I don't wish to create any problems with it. I hope someone out there knows which terminal to use as I have already checked withyesterdays tractor parts but they couldn't help. Thanks in advance for any help

 

[Bob]

(quoted from post at 13:37:31 07/10/19) I have a friend who has a fordson and we just installed a new 12 volt starter. There is a ground lug on the motor housing and a positive post on the solenoid with 2 large spade terminal posts. Under the positive post there are 2 smaller spades for the start function only neither is marked with the usual s for start from the key and I don't wish to create any problems with it. I hope someone out there knows which terminal to use as I have already checked withyesterdays tractor parts but they couldn't help. Thanks in advance for any help

Define "Fordson", exactly WHAT tractor are we working with here?

 

[Papaw8]

If it is like most solenoids the terminal that would go to the ignition coil would be not connected to anything inside the solenoid until the solenoid is
enegergised so the other one would be the start terminal.can check with ohm meter to solenoid housing.

 

[Oldiron1955]

Its a diesel powered major according to the info we have.It has a compression release in the front of the valve cover. Afraid that we have very limited info on the machine which he bought from someone with even less info on it. The machine does have a backhoe on it. I can always install a in line fuse to test and prevent damage to it but I was hoping someone had bought one of these and knew which lug to use.

 

[Oldiron1955]

This machine is a diesel so it don't have a coil but I do follow where your going, I didn't have a meter with me the other night. I guess that I could also use a in line fuse to protect it from damage and see what happens. I was just hoping someone would have a ready made answer that I could use. Lol

 

[Bob]

(quoted from post at 16:42:53 07/10/19) Its a diesel powered major according to the info we have.It has a compression release in the front of the valve cover. Afraid that we have very limited info on the machine which he bought from someone with even less info on it. The machine does have a backhoe on it. I can always install a in line fuse to test and prevent damage to it but I was hoping someone had bought one of these and knew which lug to use.

I'm gonna GUESS you have a Ford "5000" newer than 1964, since it has a solenoid mounted on the starter, don't think the Majors ever had that, at least in the USA.

I'll look and see if I have a manual for it with a wiring diagram.

 

[Papaw8]

On the diesel the ignition terminal would not be used.you can take a test light and jumper cables or a household lamp or radio and cut one wire of the cord strip back insulation plug in and test for continuity of the terminals to ground.the one without continuity is the wrong one.

 

[Papaw8]

Simpler than that one should work the other should do nothing and cause no damage

 

[Leroy]

If you can tell us how many speedes it might help identify. The Majors as I understand built before 65 were a 6 speed, after that not called major but just 5000 and 8 speeds or sos.

 

[Steve@Advance]

Is this the solenoid you have?

If so, I'm going to make a guess that the 2 spade terminals are for the coil that energizes the solenoid.

That could be confirmed with an ohm reading across the 2 terminals. If there is conductivity across the terminals, and open to ground on both terminals, then it won't matter, the wires with the spade terminals can go on either spade.
Starter Solenoid

 

[Oldiron1955]

The starter he bought had the solenoid on it it?s AST1101Z made by sparex a type M-127 or Lucas part SLU0002 so it is a complete assembly where the solenoid mounts down at about 4 o?clock position toward the outside of the tractor

 

[Oldiron1955]

Thanks so much for your input and for looking into it more. The starter that was in it before was just that and the relay was remote mounted with a pedal used to engage the Bendix so I don't know what your book will show. He bought the starter from yesterdays tractor and I spoke with CJ who tried to help also but couldn't get any info on the connections either. Cant believe that they don't provide any info at all.