Service & Maintenance Question
I just changed the rear tire on my YTH21K46. It is less...escalated
Service & Maintenance Question posted October 13, 2012 by Doug Dallmer
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Question:
I just changed the rear tire on my YTH21K46. It is less than 6 months old. Now the transmission will not engage. I have moved the pin to engage/disengage repeatly in the back, but it will not work. Engine runs fine.
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Answer
Hi Doug, 1 thing to check is the drive key that connects the wheel rim to the axle may have dropped/slipped out, jack up the machine, remove the wheel again & turn the axle, you will see a long groove in the end of the axle shaft, also look at the wheel rim where it fits on to the axle, it also has a long groove cut in to it, some where on the ground there should be a piece of key steel, that fits in the grooves when they are lined up, search around in the area that you took the wheel off or it may have fallen out from the wheel rim when the tyre was changed, when you find it, put the wheel back on, line up the 2 grooves & slide in the key steel, fit washer & clip - test run. If that doesn't work check the drive belt tension. Hope this helps.
Regards
Bryan
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Thank you, Bryan! I've been searching the internet and Husqvarna FAQ's for this exact answer. I even called the Husqvarna service number on the mower and kept getting disconnected. I had no idea this little axel/tire key (picture attached) fell off while I was removing the rear tire. I didn't even know this part existed so when my YTA18542 riding mower wouldn't move after putting the tire back on, I was baffled. I kept pushing and pulling the transmission disengage pin and the mower was still acting like the transmission was stuck in neutral. I thought I broke something. I was underneath checking all the belts and pulley mechanisms to no avail. Glad I randomly came across this post from several years ago and glad the parts are still the same. It prompted me to look on the garage floor for a little steel part and that's when I found it laying in a floor crack. I put the part back on and boom! The transmission engaged. Thanks again for posting this answer and I hope it continues to help people in the same situation. Now, time to get out there, crack a cold one, and cut some nice stripes in the yard! Cheers!
-Brad
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