Posted by bill mart on September 24, 2012 at 08:01:25 from (69.204.65.189):
In Reply to: Spring Lock Washers posted by 60 acre hillside on September 23, 2012 at 15:48:33:
Henry Ford was also very frugal and would do anything to save a penny.(read his bio) That being said,here is a excerpt from Wiki.
A split washer or a spring lock washer is a ring split at one point and bent into a helical shape. This causes the washer to exert a spring force between the fastener's head and the substrate. Applicable standards are ASME B18.21.1, DIN 127B, and United States Military Standard NASM 35338 (formerly MS 35338 and AN-935).[8]
The use and effectiveness of spring lock washers has been in debate of late, with some publications advising against their use. Sources in reference are IS:3063,[9] and NASA Fastener Design Manual.[10]
did not know about the debate,have always used them and except for extreme vibration situations where i would use a nylock nut I will continue using lock washers. Bill
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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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