eplacing AM128925 (Brake Safety Switch) on a 455.

Just curious because I saw your other post on it not always starting - Are you changing the switch as part of the not starting issue? If so, I believe a bad brake safety switch will prevent the engine from cranking. If it cranks, then the switch is OK (I've seen other people chase after that as a possible "will not start" cause).

Rivets speed the assembly time. If you have the tools to rivet the new one in, seems the easiest way to go.

Parts drawings will usually only show one of a screw and then list the total used in the part description section.


I am not sure about the depth knob. For my JD285, I just took the knob off (threaded with a jamb nut to the shaft) then the foot rest came off.

The lack of the depth knob in the pic is just because Deere often excludes those things that are not in the section being illustrated. The knob will probably in the lift section.
This is from the fender deck/footrest manual section.

Rivets are there because they are positive, no location or adjustment needed thus no possibility for error, they are faster to install and the biggie from an accountants view: Parts count reduction. That is important to cost control, accounting and inventory.

CantKeepUp said:

Just curious because I saw your other post on it not always starting - Are you changing the switch as part of the not starting issue? If so, I believe a bad brake safety switch will prevent the engine from cranking. If it cranks, then the switch is OK (I've seen other people chase after that as a possible "will not start" cause).

Click to expand...

I was originally changing the brake safety switch because I had thought it might fix the 'not always starting' issue. I no longer think that is the cause but since I bought the switch I figured I might as well change it and learn some more about the 455 in the process.

Would there be any reason I couldn't reinstall a new brake safety switch with bolts/nuts instead of rivets?

thanks

Personally, if you haven't removed the original and it still works, I'd stash away the new one for when I need it(which may be never) due to the policy "if it ain't broke..." If you do replace it, rivets, bolts...so long as you can fasten it securely (if you can't, you will be doing the job again or constantly retightening it). If you go with bolts, I'd use thread lock.

CantKeepUp said:

Personally, if you haven't removed the original and it still works, I'd stash away the new one for when I need it(which may be never) due to the policy "if it ain't broke..." If you do replace it, rivets, bolts...so long as you can fasten it securely (if you can't, you will be doing the job again or constantly retightening it). If you go with bolts, I'd use thread lock.

Click to expand...

Agreed, put it in your spare parts stash:tango_face_angel: