5520ch falls into 4WD

[chip66]

I have a 2022 5520ch, after lubing everything, my 4WD lever will fall into 4WD with only a little bit of movement. Apparently, the dirt I pushed out of the levers when greasing them was saving me from this.

There's an obvious detent while in 4WD, but what only feels like a very weak one when disengaged. Looking at the lever and linkage, the detent I feel in 4WD is obviously internal to the transmission. Is there usually a firm detent also while disengaged?

I'm about to put a fat rubber band between the lever and seat to keep this from happening.

Anyone have a real solution?

 

[ptsg]

The detent should have the same pressure on both positions (engaged and disengaged).

Are you sure the 4WD Lever is moving the full travel in the disengage position?

I have a vague idea of someone mentioning that the rubber boot would prevent it from moving all the way in the Cab models.

EDIT: The detent is built within the fork that moves the 4WD gear back and forth. So no good way to access it and I can't see why it would the issue, instead of with the linkage.

 

[chip66]

The detent should have the same pressure on both positions (engaged and disengaged).

Are you sure the 4WD Lever is moving the full travel in the disengage position?

I have a vague idea of someone mentioning that the rubber boot would prevent it from moving all the way in the Cab models.

I was wondering the same thing. The rubber is stressed when disengaged, but it appears the transmission limits the movement. I loosened the rubber to confirm.

The seat moved forward will cause interference with the levers and push it down. I encountered this the first time my wife drove the tractor.

EDIT: The detent is built within the fork that moves the 4WD gear back and forth. So no good way to access it and I can't see why it would the issue, instead of with the linkage.

View attachment 2992200

Very helpful.

For my next step, I think I will disconnect the linking from the transmission and see if something else limits the movement, and confirm the transmission has a detent working while disengaged.

 

[CloverKnollFarms]

My 4wd lever has always had very positive detents, and my tractor has always been incredibly clean.

But my seat comes nowhere near the lever, so maybe yours is different... I thought the 5520 and 4820 were the same chassis

 

[ptsg]

I was wondering the same thing. The rubber is stressed when disengaged, but it appears the transmission limits the movement. I loosened the rubber to confirm.

The seat moved forward will cause interference with the levers and push it down. I encountered this the first time my wife drove the tractor.



Very helpful.

For my next step, I think I will disconnect the linking from the transmission and see if something else limits the movement, and confirm the transmission has a detent working while disengaged.

That's a good move to troubleshoot this one out.

I don't think the linkage has any adjustment but it would be nice if it did.