3WHDave 60 #1 Posted May 21, 2020 Option wanted: during inspection of the transmission, I noticed a chipped gear tooth. I did not see (after flushing) any pieces, so I’m betting it came out during disassembly. There is plenty of tooth left, but, should I reassemble it with this gear? Share this post Link to post Share on other sites
oliver2-44 9,858 #2 Posted May 21, 2020 What tractor is this one. Are you planning to use it as a worker or show tractor. If it;s just for rifdng aroun shows and the neighborhood I think it would be fine. I;ll let others chime in if its to be a worker. With that said, contact A-Z Tractor in out Vendor Section, a good one might cost less than you think. 1 Share this post Link to post Share on other sites
3WHDave 60 #3 Posted May 21, 2020 Thanks Oliver2-44. Its a low-duty tractor, to be used around the yard, pulling light wagon with lawn clippings. It’s a D-180, overkill for the job. I will polish the chipped area to reduce any potential stress-risers. Share this post Link to post Share on other sites
ebinmaine 68,343 #4 Posted May 21, 2020 I'll second that. If it's not going to move any weight or implements. I'd also say give Lincoln at A to Z Tractor a call. While it's apart. 1 Share this post Link to post Share on other sites
Tractorhead 9,065 #5 Posted May 21, 2020 Looks to me anybody shifted while in move or with not completely released clutch. My thinking is, i don‘t know before, what i will do later on work with my machines, so i would exchange if possible. Just as a Show Tractor to drive arround, i think it‘s good enough to let. 1 Share this post Link to post Share on other sites
pacer 3,174 #6 Posted May 21, 2020 I'd bet that happened when the ....incident? happened that broke those woodruf keys. That one has me sorta stumped, HYD drives just dont often do that. Not like a shifter where you can grind gears and dump the clutch, etc. Anyway, not being able to get a close look I would use that gear and it will probably go right on and not be a problem. If you can Braze, build up the broken area and file/grind it back to match the rest of that tooth. For awhile years back I got into rebuilding milling machines and lathes, etc and broken teeth were pretty common. I used the brazing method several times to get the machine back to a worker. Then, of course, today a guy with a tig welder could probably do it too. Share this post Link to post Share on other sites
stevasaurus 22,863 #7 Posted May 21, 2020 I'm with Pacer on fixing the tooth or replacing the gear. That is the bottom of the 11/44 tooth gear...the part of that gear that is chipped meshes with a small pinion gear on the bottom of the cluster gear shaft. If it meshed with a larger gear, I would probably not change it out. Share this post Link to post Share on other sites
3WHDave 60 #8 Posted May 21, 2020 Thanks all, I am going to repair and reinstall, and also contact A-Z Tractor for a replacement gear. I have become proficient at pulling the pumpkin and changing-out (not by design). As for the damage, I recall clearly the time when it was being loaded and the skid-loader pushed the tractor from a wet grass surface to a dry-hard trailer, at which point it broke-loose. I really regret not having educated myself on the existence of a "PUSH-VALVE", however, ignorance is not an excuse! Dave 1 Share this post Link to post Share on other sites
stevasaurus 22,863 #9 Posted May 21, 2020 Knowing how it happened, is the knowledge you want when deciding on whether to fix or replace. It makes for better choices. 1 Share this post Link to post Share on other sites
3WHDave 60 #10 Posted May 22, 2020 You are so correct Stevansaurus, in my world we call that process FMEA, which is translates into “Failure Mode & Effect Analysis”, and I can only guess at what caused the failure. Was it a hertizian stress failure or an sudden impact failure, I do not know? But I do know that most (if not all) good designs have a safety factor of 2X. However, I’m not willing to give-up 0.03X of that safety factor. I will put a new gear in. Besides, at this point it will be the cheapest element of this rebuild! Take care all, Dave 1 1 Share this post Link to post Share on other sites
3WHDave 60 #11 Posted May 22, 2020 (edited) You are so correct Stevansaurus, in my world we call that process FMEA, which is translates into “Failure Mode & Effect Analysis”, and I can only guess at what caused the failure. Was it a hertizian stress failure or an sudden impact failure, I do not know? But I do know that most (if not all) good designs have a safety factor of 2X. However, I’m not willing to give-up 0.25X of that safety factor (1/4 tooth). I will put a new gear in. Besides, at this point it will be the cheapest element of this rebuild! Take care all, Dave PS: your YouTube vids are great, thanks for sharing! Edited May 22, 2020 by 3WHDave 1 Share this post Link to post Share on other sites
