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Discussion Starter #1
Hi all,

This topic has come up for a number of owners, most generally the earliest 2210 models, but also newer models that the rockshaft control isn't adjusted properly. What can happen during heavy work at the upper limit, is that the internal rockshaft can contact the rockshaft cover and break the seal. This is what I posted in KVJohnDeere's post on giving Deere the ultimatum.

On 2210/2305 tractors where the 3PH rockshaft control isn't adjusted correctly (too much up travel), the ball of the internal rockshaft can contact the top link plate and break the seal. In some of the early tractors, JD sent out new plates, but now they just make sure the linkage is adjusted correctly (it should snap the lever into neutral before binding at the top), and then reseal the top link liberally with Loctite RTV Silicon Sealant (this isn't a pressure seal, and the factory has been known to be a bit skimpy with their sealant application).

cdhd asked for more information, so I decided to start a separate post.

Here is a pic of the rockshaft cover where you can see the galling of the rockshaft into the cover:

This happened because my rockshaft lift wasn't properly adjusted. It never showed up though for over 250 hrs, until I spent a day with a 7' Landpride rake on the back grading two lawns (the 7' rake was really too large for the 2210 and was set up for a skid steer, so the 2210 spent the day at or near the upper lift setting). Here is what I saw:

BTW, this looks much worse than it was due to the coating of dry topsoil. Anyway, I contacted my dealer and they said the fix was very easy. First, remove the cover, file down any of the galling that was raised up. Reseal cover with RTV sealant, and then adjust the rockshaft lift. To help you guys, here are two pages from Deere's Hydraulic Tests & Adjustments, and one page from the Power Train Final Drive Repair.


 

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Good at breaking stuff!
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Thanks JDF!

I will look at my machine today and adjust the rockshaft adjustment arm. My adjuster works correctly at 2,200-2,500 rpm. But it doesn't work right at idle or above 2,500 rpms. Any thoughts why?

Also, did your tractor loose the ability to lift? Or did it just loose fluid? How much and how quickly?

BTW, I have about 30 hours on my tractor, so if it is broken I will have the dealer pick it up and fix it.
 

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Discussion Starter #3
cdhd,

I never lost ability to use the 3PH or control over the hydro (there's over 3 gallons in there!) and I probably didn't lose much. After the fix, I took the opportunity to switch over to synthetic hydro oil. Not sure why yours is so sensitive to rpm, but I'm guessing the adjustment is really close to being right.
 

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cdhd,

I never lost ability to use the 3PH or control over the hydro (there's over 3 gallons in there!) and I probably didn't lose much. After the fix, I took the opportunity to switch over to synthetic hydro oil. Not sure why yours is so sensitive to rpm, but I'm guessing the adjustment is really close to being right.
Thanks for the posting!

I checked mine today. No evidence of leaking. The adjustment was close, but needed another 1/8" on the rod to be correct. This feature doesn't work below 1,700 rpms because the 3ph doesn't raise fast enough. However, I do keep my BB on 24/7.

Thanks!:bannana:
 

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Anybody know if this cover can be removed without pulling the tranny? I've only ever seen one other post on it, on a different forum, and he removed it to do it. Looks like it's doable while on the tractor but not sure.
 

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Okay, tackled it this morning. No problem to pull the cover. A slide hammer with a hook attachment really helps with removal. Hardly any RTV on the cover from the factory, and also has the galling on mine. Sanded it down smooth and then polished it up. I used the Right Stuff by Permatex, and I swear by it. For one thing it stays in a rubber like state and swells and contracts as the need arises. Double the price of other stuff but it really does work well. Adjust the rock arm as per the manual and the post here. All is good. :tango_face_smile:

Anybody know if this cover can be removed without pulling the tranny? I've only ever seen one other post on it, on a different forum, and he removed it to do it. Looks like it's doable while on the tractor but not sure.
 

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Discussion Starter #8
Hi dell and apologies for the late response as I've been away traveling. Glad you figured it out and that it was a simple fix. :)
 
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