Posted by Owen Aaland on October 07, 2009 at 23:24:34 from (207.13.114.55):
In Reply to: 300u clutch posted by JSmith Farm on October 06, 2009 at 13:35:44:
When doing the clutch and TA adjustments, the things to keep in mind are:
A) The clutches need to be able to fully release.
B) When the clutches are engaged the release bearings must have some clearance so that they do not run all the time.
C) When depressing the main clutch, the TA clutch must release before the main clutch releases.
Make the adjustments in the following order:
1) Remove the link between the clutch control pivot shaft and the TA control pivot shaft.
2) Adjust the clutch linkage so that you have 1" travel before you feel the bearing contact the pressure plate levers.
3) Put the TA handle in the forward (direct drive) position. With the pin through the slotted clevis and the arm on the TA clutch shaft, adjust the clevis so that the pin will move 3/16" from the far forward position and the point where the release bearing touches the pressure plate levers. This adjustment should allow for the release of the TA clutch when the lever is pulled back. You can check for complete release by having the tractor face uphill and the transmission in gear. When you push the main clutch pedal to release the clutch, the TA should keep the tractor from rolling backward. Now pull the TA handle back. The tractor should start to roll before the lever locks in the TA position. With worn linkage you made need to go with a little less that the 3/16 movement of the pin. If you can not get the TA clutch to release you have problems with the clutch that adjustment is not going to correct.
4) With the clutch pedal up and the TA handle in the forward position, attach the spring between the main clutch shaft and the TA clutch shaft. Adjust the length of the connecting link as short as you can but still allow the pins to be installed without moving either clutch shaft. To check the adjustment, when you start to move either the clutch pedal or the TA lever, the TA clutch shaft should move.
5) To check for correct operation, drive the tractor facing uphill. slowly push the clutch pedal to release the clutch. When the tractor stops, before the clutch pedal is all the way down, the TA should keep the tractor from rolling backwards. As you continue to push down on the pedal, the TA clutch should release and the tractor should start to roll backwards. As you release the clutch, before the tractor begins to move forward, the TA clutch should engage and hold the tractor from rolling backward. If the main clutch engages before the TA clutch, the tractor will start to move at one speed and then shift up as the clutch is fully released.
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