600 series solenoid, 6volt or 12volt ?

dave404

Member
the tractor has been changed to 12v and awhile back the solenoid quit , would just click.
it had the 3 terminal solenoid so i ordered the 3 terminal 6volt from yt's part place.

It wouldnt work no matter if i reversed the wires. the only way it cranked was to push the button on bottom of solenoid or jump a wire from pos. on battery.

It has the starter button like the 8n,and the solenoid from my 8n works on it, just the mounting is different.
Whats my problem ?

heres the one i ordered
Starter Relay Assembly 6-Volt - For NAA, Jubilee, 600, 700, 800, 900, all 1953-1957. Relay Assembly, 6 Volt, 3 Terminal. (Part No: NCA11450A)
 
(quoted from post at 16:58:21 04/18/13) the tractor has been changed to 12v and awhile back the solenoid quit , would just click.
it had the 3 terminal solenoid so i ordered the 3 terminal 6volt from yt's part place.

It wouldnt work no matter if i reversed the wires. the only way it cranked was to push the button on bottom of solenoid or jump a wire from pos. on battery.

It has the starter button like the 8n,and the solenoid from my 8n works on it, just the mounting is different.
Whats my problem ?

heres the one i ordered
Starter Relay Assembly 6-Volt - For NAA, Jubilee, 600, 700, 800, 900, all 1953-1957. Relay Assembly, 6 Volt, 3 Terminal. (Part No: NCA11450A)
aybe no good new, maybe wrong type. Take it off, touch small terminal to battery post (either = or -) and first one large terminal to other battery post, if no pull-in, try the other large terminal. If neither pull-in, then it is either no good or wrong type for your tractor.
 
do the test jmor mentioned and post back.

if small terminal on relay to one bat post, and both of the other terminas to the other bat post don't make it pull in.. it is bad.
 
this makes the 2nd new one from yt parts ,both do the same .
i will test as stated tomorrow. so far, ive switched the cables around (+batt. and starter cable) no luck.
i can remove small wire to starter button and jump a wire from small terminal to +batt. and it cranks.
it was changed from 6volt to 12 volt when i bought tractor.
im runnin it right now with the 8n solenoid.
 
if + from the bat to the small post, and the case of the solenoid to bat negative make it pull in.. it is the wrong solenoid.
 
do they make 2 different types of the 3 terminal ? as the one one it when i got tractor was a 3 term. and mounts the same.
i may just drill a new hole in side of batt tray to mount the one from 8n and be done with it.
but (curiousity kills the cat though,lol)
 
(quoted from post at 20:21:43 04/18/13) do they make 2 different types of the 3 terminal ? as the one one it when i got tractor was a 3 term. and mounts the same.
i may just drill a new hole in side of batt tray to mount the one from 8n and be done with it.
but (curiousity kills the cat though,lol)
es, there are dozens of different solenoids and for sure more than one type of three terminal solenoid. Did you do the test I described? Here is another to determine the wrong type for your tractor. Across from one battery post to the other, touch solenoid small terminal and solenoid case (no big terminal involvement). Pull-in or not?
 
Yes, there are dozens of different solenoids and for sure more than one type of three terminal solenoid. Did you do the test I described? Here is another to determine the wrong type for your tractor. Across from one battery post to the other, touch solenoid small terminal and solenoid case (no big terminal involvement). Pull-in or not?

done the above test, yes it pulls in.
found the one came off tractor, the small terminal is to the right of solenoid and labeled "I"
The new one is to the left and labeled "s"
 
(quoted from post at 20:54:32 04/18/13) Yes, there are dozens of different solenoids and for sure more than one type of three terminal solenoid. Did you do the test I described? Here is another to determine the wrong type for your tractor. Across from one battery post to the other, touch solenoid small terminal and solenoid case (no big terminal involvement). Pull-in or not?

done the above test, yes it pulls in.
found the one came off tractor, the small terminal is to the right of solenoid and labeled "I"
The new one is to the left and labeled "s"
abels & position are not particularly relevant, as makers tend to use whatever is readily available for case, just guts & how wired inside. Now that you have done both tests, do you understand difference & what will work in your case & what will not?
 
Maybe no good new, maybe wrong type. Take it off, touch small terminal to battery post (either = or -) and first one large terminal to other battery post, if no pull-in, try the other large terminal. If neither pull-in, then it is either no good or wrong type for your tractor.

JMOR, it didn't past this test. but did the other ??

i just got done repairing the original one from the tractor. drilled the rivets out and what i call the plunger was rusted. cleaned it up and it kicks good.
also repaired an 8n one i had laying around. disassembled it and the wire which goes to the small terminal from the winding was loose. backed the small terminal up and placed wire under the screw head. kicks good also.

Im still studying and learning and its a brain teaser on the new solenoids. i will install the original i repaired tomorrow and see what happens. it and the new one looks identical, except the small terminal placement and the "I" and "S" being different.
 
This illustrates three types of solenoids. Ground activated was common on 8N and later.
a112110.jpg
 
Good diagram.Should clear up the confusion on solenoids.Cars and trucks with computers have a diode across the coil to prevent inductive voltages from getting into the computer.
 

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