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Fern(Mi) 10-07-2012 12:23:24 24.231.197.158 Report to Moderator	Have two 1850 series desiel oliver tractors with the over-under intermediate transmission. Both transmissions have lost their low under and overdrive features. Is the any possibility I could trade a new autographed "Santa's Reindeer Hay" story book for the manual copied pages dealing with the teardown and rebuilding these hydralic transmisions. Fernan Santa's Reindeer Hay - Welcome www.farmbookstore.com [Reply]   [No Email]
Olarry from maryland 10-07-2012 14:28:54 97.73.64.146 Report to Moderator	Re: 1850 over-underdrive transmision troubles in reply to Fern(Mi), 10-07-2012 12:23:24   The one tractor i had the over and under go out the 4 bolts holding the gear and that other piece together broke.Really two backed out and the others broke. [Reply]  [No Email]
TFE.INC 10-07-2012 14:25:54 107.8.130.5 Report to Moderator	Re: 1850 over-underdrive transmision troubles in reply to Fern(Mi), 10-07-2012 12:23:24   i rebuild those units , and can be very costly , depends on what gone , i have after market parts supplier , the parts come in agco bags ,fiqure that one out , price is a lot cheaper can build for farm or pulling if you need help let me know thanks terry@tfe.inc 414 379 8485 [Reply]  [No Email]
ollie gm 10-07-2012 14:11:45 75.164.231.134 Report to Moderator	Re: 1850 over-underdrive transmision troubles in reply to Fern(Mi), 10-07-2012 12:23:24   That sounds like a deal! I have 2 versions that are available in PDF format complete with highlighted notes for tests and procedures. One is the original that came from the 3 spd chapter in the Oliver service manual. The other is the I&T version which is nice because it includes all the different updates with details through the years. I like it because all the excessive language that Oliver uses is eliminated and cuts to the bare facts. Let me know if your interested. Like John mentioned, it looks like you'll need sprag clutches and a couple of gasket sets for a start. If you are going with Ag-Co parts (recommended) get a grip on your jaw to keep it off the floor when the price is quoted. [Reply]  [No Email]
J. Schwiebert 10-07-2012 13:10:59 209.143.28.10 Report to Moderator	Re: 1850 over-underdrive transmision troubles in reply to Fern(Mi), 10-07-2012 12:23:24   If the low range is out the sprag clutch is out. Have you checked the pressures on the direct drive & the overdrive clutches? [Reply]  [No Email]