706 t/a

[FarmallZach]

So we just got done with a complete engine overhaul on my 706 with the d310 engine. It has sat for about a year inside the shop while I saved up some money. I've been using it here and there to get ready for spring and it almost seems that the ta is slipping in high side. When shifting into high side like on the road it has a gradual speed increase while the engine rpms stay the same. Then going up a hill it defiantly slows down and will bog the engine a little but not enough for the speed it is going. The weird thing about it is it always worked just fine before tearing it apart and putting it back together never had a problem with it. any ideas? I changed the hyd filter and overfilled like I've been taught be didn't change anything

 

[DeltaRed]

Sure it's not the clutch?Dose it shift like it should? Do you shift it hard and fast(the way you're supposed to) or slow and easy?Sounds like your clutch is slipping,not the TA.

 

[FarmallZach]

I do shift it hard and fast and it grinds quite a bit but its been so long since ive used it I cant remember what it was like before but I do know that the t/a always worked. a new clutch was installed while it was apart. I didn't do the work though.

 

[the tractor vet]

Well since i am not there to do some checking myself , lets start with checking free play on the clutch . It should be around 1 and 1/8th inches of free play . Now to check the pressure on the T/A clutches ya need a special fitting to go into the bottom of the MCV valve and a hyd gauge that will read 600 LBS . Your loc up pressure should be 210 , myself i set them for a 706 around 230-240 . Now lets just say that the main clutch is done for , ya know it is not just a matter of splitting the tractor and stuffing in a new clutch and calling it good . You MUST reface the flywheel and have the step recut so that the clutch has the propper hight OR your back to square one . Now here is something that maybe you do know or don't know , YOU NEVER pull the tractor together with the FRAME BOLTS as you can damage lots of things by doing so . The easiest way to put a BINDER back togethere is you fist depress the pressure plate levers down and use small nuts like a 1/4 inch nut between the release levers and the pressure plate cover then ya hang it on the PTO Shaft then you hang th disc on the transmission input shaft then you Line up the tractor real close and SLIDE IT together, it may take a little wiggeling and light tighting of the frame bolts to get it to come together but never FORCE it . Once it is together then ya can tighten the frame bolts. . Then you work up thru the inspection hole in the bottom and put your six bolts in and start to SNUG them up evenly till they are tight . NOw if done correctly the nuts you placed under the cover to hold the release levers down will fall out and make use you account for them . Then you make your clutch adjustment and also you do the whole clutch , transmission brake and the T/A dump valve adjustment . I just covered this a couple weeks ago for a guy that had a either a 56 -66 sires tractor the only difference is the free travel on the clutch pedal between the 06 and the 56-66 sires .

 

[ZANE]

Shoot, I wish you had told me that trick of putting the clutch on the input shafts instead of just aligning the discs and bolting down the pressure plate and then coupling it all back up.

I have had many unhappy hours wiggling and shaking big tractors and small tractors gettting them to align and go together like they should. I do know not to ever pull them together with the bolts if they are balking.

I did make a tool from an old PTO yoke with a long handle welded to it at a 45% angle so I could move the clutch from the PTO shaft and that always helped. It's been about 45 years since I made that tool and a couple of weeks ago I was at the local IH dealership where I worked and believe it or not that same tool I made was hanging on the PTO of a big tractor they were trying to put back together.

Zane

 

[charlieu]

Here is a picture of the way to install a clutch without bending the disc. You might even get paid for working while lying on your back. Using an air ratchet makes the job go even easier.

 

[Owen Aaland]

On the 6x6 series tractors I don't even lay on my back. Sine the starter has to be removed anyway I just use the starter hole to install the pressure plate bolts after the tractor has been bolted back together.