Originally Posted by
miked
So what is the plan for the Simplicity 9020? I don't mean to ask stupid questions but sometimes that all I have available. Here's my question: Why not just fabricate a muffler? 73 Mike
ps My yaesu FT-950 HF 160-6 meter transceiver just went down for the count. Yaesu tech said it's unlikely to be repaired since the likely bad board is no longer available. He did offer if I sent it in they would be able to blame it on a power surge for an insurance claim. I'm just going to sell it as a broken rig for parts only and recoup some of my money.
I liked the FT-950 its a big desk top radio with lots of dials and few menu changes needed while operating. What killed my radio is a weakness in the design so I'm not going to buy another one.
I'm trying to decide to go used again or pay for a new one. At 63 I'm likely at the end of purchasing any more new radios after this one I'm considering. Mike
Thats a bummer about the radio packing it in, thats the problem with this newer stuff jammed full of circuit boards. The old tube radios many a ham operator knew how to fix one.
On the 9020 if I left he hood off could put anything in there for a muffler, the OEM is made to fit in a confined space.
As to what I'll do with the 9020 this depends on how much damage there is inside the trans-axle on that 720. The guy I bought it from said that when its put into gear just a grinding noise comes from the transmission. Both tractors are hydrostatic drive, I suspect the spline on the hydro motor is worn out and probably took out the mating gear as well.
Since the 720 is a much nicer looking machine my thought was to remove the trans axle from the 9020 then slip it under the 720, the loader maybe an issue. I did some research on the Arc loader and it has a sub frame under the tractor and I don't think I can use the snowblower with the sub frame installed.
I have the 9020 operational and ready for blowing snow so I'm not going to dismantle anything from it for now.
Over the winter I'll get inside the 720 to see what needs replacing then keep an eye on the auctions.
These are a very sturdy built tractor but I have identified one weak point, the internal spline on the hub that connects to the pto clutch is prone to wearing out and also takes out the mating spline on the pto shaft inside the transmission. Not a bother for me as I have no plans to use the rear pto.
Another fellow had an ad looking for the hub, I told him to remove the pto shaft then examine the spline. It was also worn. It was an interesting week spent having one of my acquaintances draw up the hub in 3D cad. I'll post a link below to the file, it's interesting.
From that file the hub would be machined with a CNC milling machine, the internal splines cut in with EDM ( Electrical Discharge Machining ) not every machine shop has an EDM and some that did have one gave me some reall goofy quotes.
Now that we're aware of the shaft being worn, a new one is also being made. Both parts will be machined from 4140 steel which is very hard and can be heat treated to make it even better.
Link removed by author.
Probably could have purchased these parts from auction but end up getting something just as badly worn out. These tractors were made back in the mid 1970's and have certainly earned the right to have a few new parts.
To have both parts machined the tag came in well under a thousand Canadian dollars. These parts are for the fellow who gave me the heads up on the 720. He opted for the new parts.
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