That could be, but it's more likely that someone tried to remove the steering wheel by pounding on the shaft. That will knock that plug out.
On my 340 (I think they use the same gearbox) I tried to put a 1-7/8" steel freeze plug in there with it still on the tractor, but that ended in failure because the outer ring of the original plug was still in there. So here's what I did:
I got a washer slightly larger than the hole and ground the outer circumference until it just fit inside the casting, then I welded the center hole shut. I cleaned the washer and the area inside, outside and all around the plug hole with brake cleaner and compressed air and glued the washer in place with a big glob of silicone. I used a wooden wedge to hold it in place overnight while it cured. I was then able to fill the gearbox with Hytran and enjoy smooth power steering!
I plan on rebuilding the gearbox this winter, so this is only a temporary fix (or is it??)
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Today's Featured Article - Sunday Drives - by Cowboy. Summer was finally upon us here in Northern Maine. We have two types of industry up here, one being "Forestry" (Wood Products) and the other "Farming" (Potatoes). There is no shortage of farm tractors and equipment around here! I have been restoring old Farm Tractors for the past 6 years, and have found it easier and less expensive to hit all the auctions and purchase whole tractors for parts needed. My wife who works at a local school, and only has weekends and summers off, while on t
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