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Scott(SC) 
Orange Level
Joined: 11 Sep 2009
Location: Starr, SC
Points: 397
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 Topic: D14 Transmission
Posted: 30 May 2010 at 7:56am |
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I'm replacing my transmission with one from a parts tractor I bought. The gears look a lot better than the ones in my old transmission. I'm replacing the seals behind the power directer, one the PTO shaft, at the differential, and will replace the O-rings on the shafts. Is there anything else I should do while I have it apart? Also, my final drives make some noise. How much noise is normal and what should I look at to decide which final drives to use? Thanks, Scott Owens 864-934-4393
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Rogers
Orange Level Access
Joined: 16 Sep 2009
Location: Georgia
Points: 2176
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Posted: 30 May 2010 at 1:48pm |
Since you have gone to that much work. I would ensure that the pinion shaft gears are shimmed properly in the replacement transmission. Too much play in the pinion shaft and shifting while still in motion are two big problems that cause problems with jumping out of gear to begin. If the pinion shaft is not shimmed properly it is easier to fix now with it torn apart.
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Think for yourself and be your own expert. Be willing to change your mind; however, willingness to change your mind doesn’t mean that you will. Blindly following any path is the pinnacle of insanity.
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Bill Long
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Joined: 12 Sep 2009
Location: Bel Air, MD
Points: 4556
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Posted: 30 May 2010 at 8:01pm |
Scott, While you are at it I would suggest looking the the shifter collars and the shifter splines on the gears. If you find there are gears that have rounded shifter splines it may be "popping out of gear". Also, you may want to check the end play in the transmission. If there is too much end play you can tighten it up with a thicker snap ring. We found that helped a lot.
Good Luck!
Bill Long
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Rogers
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Joined: 16 Sep 2009
Location: Georgia
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Posted: 30 May 2010 at 8:52pm |
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The end play that Bill referred to is what I am referring to using shims for. There are different thicknesses of snap rings available for adjusting the main shaft play, as well as, very thin shims which can be placed on the pinions shaft. The shims are available in 5, 6, 8 and 10 thousandths.
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Think for yourself and be your own expert. Be willing to change your mind; however, willingness to change your mind doesn’t mean that you will. Blindly following any path is the pinnacle of insanity.
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Fred in Pa
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Joined: 13 Sep 2009
Location: Hanover Pa.
Points: 9210
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Posted: 30 May 2010 at 9:08pm |
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Put in a lift cyc hose and o-ring W/bach washer in lift cyc while you have the housing off.
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Scott(SC)
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Joined: 11 Sep 2009
Location: Starr, SC
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Posted: 31 May 2010 at 7:16am |
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I rebuilt the lift cylinder and replaced the hose not long ago. I read the section on the end-play in the manual. I don't have a dial indicator. Is there a way to check the end-play without taking the gears out? The gears are barely beveled. In the old transmission, they were much worse and 3rd would slip out very easily.
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