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Powershift transmission tractor3/11/2023 ![]() There is not much farming in my area going on on a large scale so all the info i can soak up just makes me a better builder. Thank You once again for all the info i am getting. You can select reverse, neutral, and 1,2,3, and on some models, 4th gear all while under a load. Once the range gear is selected (usually a Hi, Med, & Low range) you can shift the PowerShift without using the clutch. You need to push in the clutch to change these gears. If it was reman then i don't know about those failures. The Yanmar PowerShift has a manual range gear shifter. If it was new i have been seeing alot of poor quality pieces come in but i figured this to be about the time they had all the problems in japan and who knows what was going on there at that time. I have now figured this out and not had a bearing failure to date on the dyno or in the field. The bearing blew out because it was to tight on the endplay. My first 16sp i built from the manual ran on the dyno maybe 1 min then it locked up, broke drive shafts to my load tester and i thought i was dead trying to shut down the 500+ horse diesel engine dyno. Even on the internal bearings are incorrect for the zero preload it takes. ( they are both 16sp transmissions) Now are those new units, reman from case or something someone else has built? The reason i ask is if it is someone else and they are building it by the manual it is incorrect on how to get the end play checks on the 5 shafts it holds. You said they were eating bearings in your area on the ps3 or ps4.
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