Posted by Hugh MacKay on August 10, 2008 at 08:16:23 from (209.226.247.143):
In Reply to: Re: SMTA Hum posted by Retcol on August 10, 2008 at 07:53:12:
Retcol: Do you have an operator's manual? It will tell you how to do this.
That failing, and I may be out of line here all 300 and 400 had the seasonal disconnect, just maybe the SMTA did not. If it has the disconnect it should be about half way along the TA section of the torque tube, on the belly and at center. You should see a flat starp lever about 5/16" thick, 1-1/4" wide and 3-4" long. It's welded to a shaft that goes vertical into tractor at one end. At the other end it has a 3/8" bolt up into tractor casting. You remove that bolt, and you'll find a second position for the flat strap lever. Inside the tractor just above that lever is a sliding coupler. One position has coupler engaged, the other disengaged.
The system was designed for cold weather starts at a time of the year not mant folks weren't using the PTO. I had a 300 and lived in an area where we quite regularly saw temps of -30F. It made the difference of tractor starting or not starting. If it was real cold, I'd disconnect IPTO, start the tractor and warm it up well, then shut down to reconnect PTO if I wanted to use it. I'm not familiar with SMTA, this may be one of those items that happened one year later, after farmers had problems. Most folks left it disconnected all winter. Those were different times, we were still using belt pully for grinding grain.
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