John deere 2640 clutch and problems

SCOTTRS

New User
I would like to ask if anyone has the dimensions of the jd 229 Clutch alignment tool or would know a measurement from a pressure plate lever to ...? I am trying adjust the pressure plate and JD doesn't have the tool.

I have been having problems with this tractor being unable to engage the gears after installing the new clutch. I have it broken apart again to see if I can identify the problem. I have some questions if any of you would know. (1) I have about 1/4" play in the clutch and pto shaft when pushing and pulling pack and forth. Is that normal? (2) Is there a washer that would go over the end of the clutch shaft to set the depth of the clutch shaft into the pilot bearing? (3) Is it possible that the front end of the pto shaft could be contacting back of the clutch disk which then would keep it from fully retracting from the flywheel? (4) Could the back end of the pressure plate hub hit the front end of the throw out bearing cone causing?

Sorry about the nature of the questions - just trying to be able to see and correct the problem and get this tractor back in the field - I surely need it.

Thanks,
Scott
 
The problem may not be your clutch. There's a snubber brake inside the transmission that rubs against the countershaft. All it is is a spring loaded piston. It keeps the gears from turning when the clutch is pushed in.
 
(quoted from post at 04:04:23 07/03/14) The problem may not be your clutch. There's a snubber brake inside the transmission that rubs against the countershaft. All it is is a spring loaded piston. It keeps the gears from turning when the clutch is pushed in.

I did see that in my shop manual as a possible problem. Would the snubber brake be a, it works or it dosent work situation? I am asking because when I first put the clutch in it worked fine for 15 minutes of testing. Then I couldn't get it in gear at all with the clutch depressed. I spent the next week adjusting the linkage all different ways and adjusting the pressure plate through the opening and nothing worked. I let it sit a week and went to try it and it worked fine, shifted fine for 1/2 hour. Got up the next morning to use it and it took a 200 amp boost along with a jump of every vehicle I own to get it to start and it wouldn't go into gear again. So my original questions pertain to, is there something to look for that might be amiss in the shafts, pressure plate , clutch and flywheel area. If it is the snubber brake pin, that looks like in my book a second break is needed along with special tools and someone with experience to do it.

Thanks,
Scott
 

parts key 1 is a washer
mvphoto8690.gif

Is parts key 25 the snubber brake?
mvphoto8691.gif
 
With the tractor in gear and the clutch pedal down, does the tractor still move? If it does, that's something in the clutch. The clutch disk isn't in backwards is it? I've done that.
 
(quoted from post at 11:20:11 07/03/14)
parts key 1 is a washer
mvphoto8690.gif

Is parts key 25 the snubber brake?
mvphoto8691.gif

TX JIM,

Your second picture does show the snubber brake plug as key 25. Your first diagram I don't have in my book but it looks like that washer would be on a shaft in the transmission case.

I am going to put this tractor back together today. Would you know what the dimension is from the clutch lever to the flywheel? Without jd tool 227 I think I can readjust the pressure plate with a dimension from somewhere to the clutch lever.

Thanks, Scott
 
(quoted from post at 07:53:33 07/03/14)
I am going to put this tractor back together today. Would you know what the dimension is from the clutch lever to the flywheel?
Thanks, Scott

Sorry but I don't know the measurement.
 
Are the splines on the input shaft good? Its possible for them to wear and not allow the clutch disk to "float" away from the flywheel. Just another thought....
 
(quoted from post at 13:46:29 07/03/14) Do a search in the forum for 2010 Clutch adjustment- pressure plate. That will give you the distances.

I did that search and the dimension given from clutch lever to flywheel face for the 2010 would be impossible on the 2640 PP. Although from the machined side of the PP to the levers using the dimensions given for the 2010 would get close to where the pressure plate was set when purchased which if that was a correct setting I would be okay. A lot of assuming and guessing here. In the least I am going to make sure all three levers are set close to exact from one another and put this thing back together and see what happens.

Thanks,
Scott
 

The splines on the input shaft are all fine. I was wondering if the pto shaft which is right behind the clutch shaft and goes through the splined hub of the pressure plate could be contacting the back of the clutch plate which would keep it forward enough to still be in contact with the flywheel even with the clutch pedal depressed. I have a 1/4 play front to back with both shafts and I am not sure if that is normal or not and if not that 1/4" forward maybe could be causing something to go amiss.

Thanks,
Scott
 

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