Re: Re: Re: proper way to weight a tricycle Farmal

Posted by Hugh MacKay on January 04, 2004 at 20:42:40 from (209.226.247.84):

In Reply to: Re: Re: proper way to weight a tricycle Farmall posted by Tommy H on January 04, 2004 at 19:46:19:

Tommy: The axle will not necessarily be the center of gravity. Every model of tractor will be different depending on design, particularily in castings. One other item that has been tested over the years is the optimum level of fluid in tires. The industry has concluded on many ocasions that filling so fluid is just level with top of rim,when rim and tire are upright is optimum. I don't know the scientific criteria used to determine this. However over my years of farming I know a half full tire on a tractor is very rough at some speeds. My understanding of this is, too little and liquid will follow the tire rather than the air staying on top. If your tire is too full you will have no air cushion. I remember driving a Farmall 300 home on black top from a rear tire repair to get back to the hayfield. Repairman did not have enough chloride to bring it up to proper level. I remember suggesting to the repairman, tire must have a bulge in it the way the old 300 was rocking from side to side on ashphalt. A week later we topped the chloride up and it smoothed tractor right out on ashphalt.

I think this is a situation of trade off of ideal conditions and situations. It was very common in 40's, 50's and 60's to see new narrow front tractors on dealers lots with chloride level with top side of rim plus one set of wheel weights. Dealers would equip them that way. If a customer wanted more traction extra wheel weights were added, but adding from that point I expect was for traction only.

Another item the industry has tried to achive with all of this is optimum traction. This one becomes very important today in particular with 4 wheel drive tractors. You will see them adding weight front or rear to balance load and traction on both axles. If this one is far off it will burn up differentials in a hurry. I noticed a large articulated tractor just lately, duals all around. There must have been 6 sets of wheel weights on rear axle and none on front. No question this was being done to balance traction, with engine up front.

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