JD 2555 hi-lo

riveroadrat

Well-known Member
Ive had this tractor going on 4 years, slowly fixing everything. Im about done with it. I just drove it a little bit and noticed that when I shift from lo to hi I dont notice any change. When i shut down engine it does go back to lo automatically. Any ideas on where to start? I am going to drive it a little bit more to see if it shifts up into hi when I get the time.
 
TimS I think he miss-spoke when he stated he was almost done. LOL I will agree with you in that I bet he is just starting to spend money on this tractor.
 
Hey, y'all supposed to think positive, I might have an easy fix. I never did like anything that didnt have gears. My last Corvette with an automatic blew a line off the oil cooler out front and sprayed my windshield with tranny fluid. I may just install one of those hi-lo eliminators. The tractor has about 6000 hours on it. Could it possibly be a valve stuck? When I did the tranny service I had no junk in the filter or screen. How many gauges do you need to check the tranny?
 
They are the same...all of these style tractors are built on the old 2020 platform...they just passed the blue print around to different factorys...
 
Ooh yes,,I have a new supply if he needs some...
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Thanks, Tx Jim. I have noticed slight oil around rockshaft seals.
What size fittings would I need for the gauge? If I do have to install a hi-lo eliminator, separate between engine and clutch housing? I have a service manual but it seems a little scattered-brained.
 
I eliminated the hi-lo on my 2640. Very satisfied with tractor now. Took guts out of hi-lo unit and replaced input shaft with a non hi-lo shaft. Took some work to make sure there was a workable seal on the input shaft but worth the effort. Didn't know there was a kit but I think I have less than $250 in it. Has several hundred successful hours on it since. If Deere has a kit I'm sure it is way more. Love how Deere sells kits to fix what should have been a recall. Like replacing the roller bearing on pto output shaft with two tapered bearings and then selling a "thrust improvement kit" to fix the issue of the roller bearing failure due to the pto being pushed and pulled by a shaft under load. Mine has failed twice pulling batwing. Shaft is a little stiff to slide under a load and roller bearing can't take it.
 
(quoted from post at 11:33:56 09/17/17) Thanks, Tx Jim. I have noticed slight oil around rockshaft seals.
What size fittings would I need for the gauge?

I can't remember the size required for testing pressure. Have you looked in tech manual for fitting size?
 
Will you explain quote? "Took some work to make sure there was a workable seal on the input shaft but worth the effort." I was looking for an eliminator at Silver Tractor in Henegar, Alabama but havent been able to reach by phone. I havent checked the manual yet.
 
I somewhat answered this in another post. If you would like to email me so I can attach some parts breakdowns I can
give you an idea of what I did to eliminate the hi-lo in the tractor. Quick answer is removed everything inside the
unit and the input shaft. Acquired a used input shaft for a tractor without the hi-lo. Put a seal in the extension
housing to match the the input shaft diameter. Now the input shaft drives all the way through the empty hi-lo unit into
the front of the transmission. The outer "cage" of the empty hi-lo unit is still needed to drive the PTO and the charge
pump. So all that went back in just like it actually was a complete unit. I made two plugs to go in the shift valve to
block it off and removed the shifter.

Not to be a downer but it isn't really for the faint of heart. If a 1 is calling your dealer for an oil and filter
change and 10 is rebuilding your own powershift transmission this is probably a 7.
 

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