m4900su Broken lift shaft

[wktruck]

Has anyone changed this shaft?

 

[Dave_eng]

Post a photo to make your question clearer.

Do you mean part #80?

Dave

 

[wktruck]

yes, snapped off one side. I carry a very heavy cutter. Thinking I can slide a dummy shaft in as I slide out the broken one and then push the dummy out with the new shaft. Just don't want part 60 to fall out of place.

 

[Tx Jim]

Thinking I can slide a dummy shaft in as I slide out the broken one and then push the dummy out with the new shaft. Just don't want part 60 to fall out of place.

IMHO you will need to R&R rockshaft housing to loosen set screw(key-090) in order to remove shaft from arm(key-060) plus I think arm will not remain in correct location when shaft is R&R

 

[Dave_eng]

yes, snapped off one side. I carry a very heavy cutter. Thinking I can slide a dummy shaft in as I slide out the broken one and then push the dummy out with the new shaft. Just don't want part 60 to fall out of place.

Do not think that will work.

#90 is a "set bolt" that locks the shaft to #60

Dave

 

[whitetiger]

yes, snapped off one side. I carry a very heavy cutter. Thinking I can slide a dummy shaft in as I slide out the broken one and then push the dummy out with the new shaft. Just don't want part 60 to fall out of place.

You have to remove the three-point cover to replace the rock shaft. Also, there are timing marks on the shaft, both of the lift arms and #60 that have to be lined up, and there is that set screw.

 

[wktruck]

Looks like you men are right. Thanks for the help. Anything I need to know about removing that cover?

 

[GeoHorn]

I used an engine-lift to remove and re-install that cover, which made it a one-man job.

(This was in reference to the time I had to do it to my 9N.)

The cover can be heavy and on some tractors it’s exact positioning can influence the draft-control.

 

[wktruck]

Yes it looks heavy. There is allot of stuff that hooks to that cover. I think I will use a telehandler and some come-a longs.

 

[wktruck]

Does anyone know if you remove the PTO and reach the set bolt in the hydraulic arm splined around the arm shaft? I know it is possible on some tractors. thanks

 

[SDT]

yes, snapped off one side. I carry a very heavy cutter. Thinking I can slide a dummy shaft in as I slide out the broken one and then push the dummy out with the new shaft. Just don't want part 60 to fall out of place.

I have R & Red the lift cover on many Ford tractors and always needed a helper to lift off and replace.

I see no way that you can replace the shaft without removing the cover, even ignoring the set screw.

Once replaced, get a mower within the recommended weight limit for your tractor or things will continue to fail

SDT

 

[wgator]

JMHO, do it per whitetiger post above or bring it to your dealer and have them do it.

 

[whitetiger]

Does anyone know if you remove the PTO and reach the set bolt in the hydraulic arm splined around the arm shaft? I know it is possible on some tractors. thanks

You have to remove the three-point cover to replace the shaft. Removing the PTO to remove the bolt is a moot point as you have to aline the timing marks on the new shaft and the hub the bolt screws into. The hub and the lift arms have timing marks to provide proper orientation.
There just is no other way to do it.

 

[wktruck]

Thanks everyone.