Posted by Sean in PA on July 26, 2013 at 04:32:48 from (22.214.171.124):
In Reply to: select-o-speed posted by Dan Cassill on July 25, 2013 at 20:35:00:
If it has been properly maintained over the years and everything is adjusted properly then yes, it should do fine at a tractor pull. Some folks swear by the S-O-S for pulling.
I have the later 3 cylinder 4000 with a S-O-S tranny, and I have pulled a number of stumps out with it and I probably put more stress on it with repeated jerks on the chain I was pulling them with than a typical tractor pull run would provide. The tires should lose traction well before you stress the transmission to the point of causing any damage. I don't have a diffy lock on mine and use the separate brake pedals to force the power away from the wheel that is slipping and a couple of times I have slipped and applied both brakes at the same time to the point of killing the engine, but it didn't seem to make one bit of difference to the transmission.
With all that being said, they are 50 year old tractors, and unless you are the original owner and have been the only one to ever run it, you don't know what kind of abuse or lack of proper maintenance it might have had at some point in its history, so something may be lurking inside waiting to give out on you. A tractor that you use to pull with should not be your only source of running your farm if your farm is your lively hood. It should be something that you can do without for a while if something does decide to give out on you when you're pulling. I have seen some fools take their only tractor to a tractor pull and break something on it and then have to buy another tractor or pay someone else to come in and work their land because they need to plant or harvest the next week and the parts to fix the broken tractor will take days or weeks to arrive.
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