5085M stuck in park, but was forced to drive it anyway

[pclausen]

So I had my 5085M hooked up to my big trailer hauling it up a steep hill on my property. I stopped to take a pic, this one:

When I got back in the cab, I put in in A1 (lowest gear), and it made an awful racket. I stopped, tried reverse and same deal. The range lever would no longer go into park although the parking lock was clearly engaged. I backed down the hill into level ground, hoping it would pop back out of park. It didn't. Decided to drive it the 1/4 mile up to level ground where I could disconnect the trailer. It made this awful noise the whole way there:

I can see various linkages under the cab, but its pretty much impossible to get in there to see what's really going on without removing a bunch of stuff.

Any idea how to proceed at this point?

Thanks

 

[Bavarian]

I can see a split tractor in your future.

 

[beenthere]

I think you will need to first understand just what is "stuck" that won't let you release "park". Maybe JD parts will offer up that info in the parts schematics.
Or maybe someone will see this that knows from your description what is the actual problem.

 

[pclausen]

So I found that range selector/park interacts with this single shaft that goes into the transmission:

There are no external adjustments.

I did find the service manual and the first step is to remove the cab and then remove the transmission...

Here are the components:

Here's the adjustment procedure once the transmission is on a bench:

On the page below, you can see the shaft coming out the side of the transmission that the range selector connects to:

I guess I'll never park the tractor on a steep hill again...

 

[Farmer495]

I have one tractor with park and it says not to park on on a slope. I assume for this reason. Sort of a pain, most tractors you set the brake and you are good.

Hope you get it fixed, sounds like a lot of work.

 

[beenthere]

I did find the service manual and the first step is to remove the cab and then remove the transmission...

Had me worried for you until I realized you didn't finish this sentence, and say remove the tranny cover, which is better than removing the transmission.

Hope you see an obvious problem when you remove that cover.

 

[pclausen]

Yeah, tranny can stay, but removing the cab is going to be a royal pain. It was off once before at the dealer when they replaced the cab frame due to this mishap:

I was loading the trailer and it started rolling into the tractor.

Here's the cover I need to get to:

Remove cab:

Might call the dealer in the morning and see if they have run into this issue before and if there's an alternative to removing the cab.

 

[Farmer495]

Wow. You've had bad luck twice. Ouch.

 

[pclausen]

Called the dealer to get an idea of cost. He said about 10-12 hours to remove the cab and pop off the transmission cover. Their shop rate is $130/hour. So about $1,500 before they can start determining what's wrong with it. Ouch...

 

[thclimer]

That is painful, but shop labor is not cheap these days.

If whatever is wrong, if not fixed, might create further damage???

 

[pclausen]

That ratcheting sounds is extremely loud. I think if I just drive it like that, some metal piece is going to wear down inside the transmission and cause a lot more extensive damage. It's like when you miss a gear in a manual and just keep trying to force it in gear anyway. Can't be good for it.

 

[murphy1244]

Peter didn't you have a insurance claim years back on this tractor?

 

[CloverKnollFarms]

That sounds like more damage while driving

 

[pclausen]

Yeah, back when I was still making payments on it, it was covered by Deere Guard or whatever its called, so that covered replacing the cab frame. They never went into the transmission when that repair was made. Haven't have any issues really over the last 12 years/1,200 hours. Still don't quite get why enabling park on a hill would cause this issue. I mean, its when you're not on level ground you need a parking brake, lol.

 

[pclausen]

Got her loaded onto the trailer and heading to the dealer 1st thing in the morning.

I sure hope just removing to top cover from the transmission will allow them to fix the issue.

 

[grsthegreat]

ouch...when that trailer let loose and hit the cab, i bet you had to throw out that pair of pants. i remember when a rock shattered my windshield....shocked the crap out of me. but my pants were still secured. i move my goose neck horse trailer with a ball mounted on my bucket, and always worry what would happen if it came loose. i only haul on flat ground, but sometimes go overboard and lock it to the ball just incase.

i hope its an easy fix. seems weird you cant use a parking brake device on a hill though.

 

[beenthere]

A parking brake and putting tractor in Park are two different things. Park is like a gear being engaged.

 

[pclausen]

@grsthegreat Yeah, I hope not to relive that experience again. I actually moved the tractor to intercept the rolling trailer and the hill only got steeper (much steeper) from where I was. The trailer and everything on it would have ended up as a bent pile of metal down in the woods, had I not stopped it.

Yeah, these tractors are kind of weird in that they don't have an old school parking brake. i.e. press down on a brake pedal and have it apply the breaks to the rear wheels via some sort of locking mechanism. The only means of keeping it from rolling is to either leave it in a low gear (engine off), or move the range selector into the park position.

My range selector won't go into the park position any longer, but I'm free to select ranges A - D, but it will only get moving in very low gears to overcome the "park brake". Once it gets past that first "notch" it moves more easily, but with that awful ratcheting noise as the parking pin "floats" over the teeth on the parking gear.

 

[grsthegreat]

Ive never been in a tractor with this feature. Always one with push brake, pull lever to lock brake pedal. I hate when they try to improve easy.

 

[CloverKnollFarms]

Ive never been in a tractor with this feature. Always one with push brake, pull lever to lock brake pedal. I hate when they try to improve easy.

Yup, my parking brake, is literally a lock on the brake.