Loose key switch, 1977, B7100

[procraftmike]

The key switch is loose on this recently purchased tractor. It rotates a little in both directions. I was expecting to see a nut on the back side, that I could tighten down. I am not seeing that. How does one tighten this switch down, so it does not rotate at all?

 

[Daren Todd]

More then likely the nut is under a trim ring on the key switch. Especially if you didn't find a nut on the back side. Or the trim ring itself is the nut.

 

[procraftmike]

I got it off. The trim ring is the nut. I just needed a bigger pliars. It was tightened down as tight as it would go, so it is missing something. Looks like I am missing a nylon washer that goes on the back side of the key switch, from some of the pictures I have found. That would explain the extra play. Plus, it looks like it is supposed to be keyed on the bottom, as there is a cut out at the dash, at the bottom of the keyhole.

I had to order a bunch of parts tonight, so for under $25, I ordered a new key switch. If this is the original from 1977, it might be a wise move to replace it anyway.

 

[seanbarr]

Correct. Trim ring but is on the top. If there's excessive play still, maybe a large o ring on the bottom side would help.


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[ironpony]

a simple plastic shim or as above o ring and fixed

 

[billrigsby]

On my L1500 there is a notch in the hole and an
extrusion on the switch to keep it from rotating when tight.