Posted by Owen Aaland on February 14, 2011 at 17:18:57 from (63.167.132.13):
In Reply to: Looking at 756 posted by W6tractor on February 14, 2011 at 05:01:00:
I would not agree that when one side of the TA fails the other side is soon to follow. That may be true if the failure is due to hydraulic failure but a failed sprag clutch will make the low side unusable but the high side may still run for thousands of hours without failing.
The way to check to see if the jerk is coming from the TA is to drive the tractor with the TA lever back and see if it still jerks. If it jerks only with the TA lever ahead there is a good chance the low side clutch is starting to roll over and is near the failure point.
The slow engagement in the forward position is usually caused by wear in the clutch pack assembly. The clutch piston has to travel farther to lock the clutch pack so it takes a little longer for it to engage.
Less than 3000 hours is pretty early for TA problems in a 756. They use the same TA as the 1456 and are usually fairly indestructable in the lower horse power tractors.
A weak MCV pump could also be causing a lot of the problems you are describing. A pressure/flow test of the hydraulic control system would be a good idea before purchasing this one.
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Today's Featured Article - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
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