Re: 1086 TA removal

Posted by The tractor vet on March 30, 2014 at 20:56:43 from (75.19.115.57):

In Reply to: 1086 TA removal posted by Lyndon - AB on March 30, 2014 at 19:49:27:

Ok i'll CHIME in . When doing a T/A om the 86's let the fun begin . Myself i NEVER start the split at the bell housing . There is a lot of work getting lines unhooked under the cab wires to unhook , blocking the rear end removal of the ft. cab mounts and having the stands to hold the cab in place . Then once ya have everything unhooked unbolted and supported then ya place a spliting stand that will MOVE and you drop the cover off the bottom to expose the PTO driven gear then you remove the bolts that hold the center section to the rearend and you move the bell housing and speed transmission still hooked to the engine forward , sometimes they will slide apart nice and easy and sometimes the don't and you have to wiggle and jiggle the PTO gear so that the shaft will come out of that gear . Then ya want to move the whole ft. of the tractor out about five to six feet . THen you use a A frame or a cherry picker and hook to the bell housing and speed transmission then you remove the ten bolts that hold the bell housing to the frame rails and engine plate . There are two 1/2 inch bolts that are on the back of the bell housing and you have eight bolts thru the frame rails . You can remove the top bolt closest to the frame rail and the bottom bolt closest to the frame rail , BUT DO NOT take the top bolt or the bottom bolt all the way out, they need to stay in there far enough so that they stick thru the engine rear plate to hold the engine up if not you will break the ft engine timing cover and the engine will hit the floor. But since he just jumped in and started tearing into this he has made for a lot more work. Myself i would remove the clutch and pressure plate and slide it back together and put for bolts back in and do it like i said . Once you have the center section out the you remove it from the engine . NOW to get to the T/A you have a bunch of nuts and bolts to remove and ALL them gears on the top shaft and the bottom shaft and all them spacers to remove and put back in when ya go back together . Once all the greas and shafts are out NOW you can remove the T/A and you will need and EYE bolt to LIFT it out and to set it back in . also the MCV valve body has to come off and you have to remove the three tubes that feed Hyd. oil to the T/A , oh and DON't loose the sump check plug spring as it is in the lower right hand corner of the MCV valve . Then ya got all them gaskets to clean off and clean everything and look everything over . Now it is time to start putting EVERYTHING back in and here it is NOT ok lets just STUFF it back together . You have to set the END play on the T/A unit and you have to have a dial indicator for this and either a 0-1 mic. to measure the shims or a dial caliper . Once you have that set and you start installing the bottom shaft what ever the thickness of shim ya used on the T/A ya have to put that shim in the correct place to shim the gear that set in to the T/A . In other words you both are in for and education . How costly of one that is yet to be seen . Your going to need a new IDPTO gear and a new clutch and pressure plate , the flywheel will need to be GROUND , myself i would install a NEW MCV pump along with a new spring kit in the MCV and all new gaskets and seals . Then the MCV pressure will need to be set . One other fine point is when you SLIDING everything back together you need to be vary careful about the Range transmission input bearing , IF you are not lined up dead on and have that bear roller held tight with a heavy rubber band wrapped around it you WILL knock a bearing off and NEVER know it Til ya hear the big kerbang in the range transmission and IF you lucky it will only whip out a gear or two if your unlucky it will make a new drain hole in the bottom of the housing .

OH YEA all most forgot one main important thing here GET A BOOK and Read it . This is why we get paid the big bucks to do this job.

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