Newly acquired Tafe 35di neutral safety switch issue

Hi I just acquired a Tafe 35di thats a pretty nice tractor. The only thing I need to replace is the neutral safety switch. Ive looked up replacements for the MF 135 and other variants and notice that the plunger is short and spherical. The Tafe is longer and more of a shaft with a conical end. I can get it to work sporadically in part of its range of motion. If you I depress it partially sometimes it closses the contacts and if you depress it completely it opens the contacts. When fully extended the contacts are open. So I put the shifter forward the plunger would be fully extended, in neutral it would be partially depressed, moving it again rearward the plunger will be depressed further. So the shaft is progressively stepped. I would have thought that the shaft would have just one high spot in it for neutral where the switch would just be open then close when depressed instead of being open, closed, open. The threads appear to be 3/4 16tpi. So does anyone know if the Massey replacement operates like this or will I have to find the Tafe switch specifically.

Thanks Z
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After reading my post it may be confusing so,

Shifter in low. Switch plunger is fully extended and open contacts

Shifter in neutral the switch plunger is partially depressed and closed contacts

Shifter in high the switch plunger depresses further and opens the contacts.

That should be much better.
 
I believe the MF switches operate the same way. You could try a MF switch, but I think you will need to get the Tafe switch, as it appears the MF switch, at least the one for a 135, would not have travel enough to work. Compare the picture below to yours.


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Thanks for the quick replys.
My switch does not work when installed and will sometimes show continuity with an ohm meter when partially depressed by hand but doesnt have good enough contact to engage the starter solenoid.
I thought about taking it apart and cleaning the contacts since its already bad but easier said than done.

Theres a dealer sticker on this that who knows maybe Ill get lucky by calling it. Im assuming this thing is probably 25 years old or so.
 
I think the Massey Ferguson switch operates just the opposite of what you are saying. The switch is open when the ball is depressed and closed when the ball is extended. There is a notch in the hi-lo range shift rail that the ball drops into when in neutral.
 

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