Posted by Owen Aaland on March 18, 2010 at 02:07:18 from (198.70.47.146):
Mike Yank said: (quoted from post at 10:24:18 03/17/10) Related to clutch adjustment. I just completed a front transmission seal replacement on my SM. I took the clutch shaft out completely to get room to work on the seal and seal carrier. Manual says you can remove the clutch plate without splitting tractor, I say no and have the busted knuckles to prove it. My question is, the pressure plate fingers have small bolts that contact the throw out bearing. These do not and never did touch the TO bearing evenly. One hits , then the other two. The clutch works but engagement is not smooth, it is herky-jerky. The linkage is is not binding. I see a lot of talk about adjusting the linkage but none about adjusting these bolts. Should I mess with these? Thanks Mike
The twelve inch clutch disc is supposed to come out without splitting the tractor but the pressure plate needs to be held in the released position by three screws. Since you posted that your pressure plate has adjustment screws that contact the release bearing instead of the adjustment being on the other end of the lever you have a newer style pressure plate assembly. There is no provision on that style PPA to hold it in the release position but it can be done by using spacers, either under the outer end of the lever or under the pivot pins. Which method you need to use depends on the exact style of PPA that you have.
The adjustment screws that contact the release bearing should never need to be adjusted. They are originally set using a jig that will get the adjustment within a couple of thousands of an inch, much closer than can be done in the tractor.
If the adjustment is off on you tractor I would urge you to split it to replace the clutch. Unless you have a loader or other mounted equipment the amount of work required for the split versus removing the LiftAll pump and clutch shaft is not much different and you can service the flywheel and PPA if it is split.
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