We have a John Deere 630 20 foot disk with harrow, 24-foot John Deere field culivator, and a John Deere 714 9-shank chisel plow. We have a 4640 that didn't have any rear weights and it would slip with the JD 630 disk behind it. After we weighted it down using the 1,500 lbs weights that took care of the problem. The tractor will actually work the engine now. We took the 4640 to a local shop to have the wheel weights put on due to the amount of work. I just am not sure if the 1,500 is overkill, or more than I should put on the tractor. I will admit I was suprised the differance it made on the 4640, but that is a lot bigger tractor all around, and seems to handle the extra weight with no issue.
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Today's Featured Article - Oil Bath Air Filters - by Chris Pratt. Some of us grew up thinking that an air filter was a paper thing that allowed air to pass while trapping dirt particles of a particles of a certain size. What a surprise to open up your first old tractor's air filter case and find a can that appears to be filled with the scrap metal swept from around a machine shop metal lathe. To top that off, you have a cup with oil in it ("why would you want to lubricate your carburetor?"). On closer examination (and some reading in a AC D-14 service manual), I found out that this is a pretty ingenious method of cleaning the air in the tractor's intake tract.
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