Re: what does it mean?

Posted by Larry NE IL on April 19, 2004 at 16:18:56 from (152.163.253.66):

In Reply to: what does it mean? posted by Dave on April 19, 2004 at 10:39:01:

Adding to the other replys; You can measure the wear on your undercarrige if you have the original spec. The chain is the most expensive and is measured for stretch by the distance between the pins. Stretch is a sign of worn bushings in the chain.
The telltale signs to check when doing a prelim. inspection are; feel surface of the pins by reaching up in the middle of the chain. New chain pins will be round. If you feel a "flat spot" on top and bottom of chain, then the pins and bushings have already been turned and the only option is to run them to junk.(+$$) Flat spot on one side and the p&b can be turned and used quite a while.($)
Sharp, pointed drive sproket teeth are worn out. But new ones are not too costly. If the chains have been pulled up real tight, watch out, some one is trying to pull a fast one on you.
Some things that put undue wear on an undercarrige, excessive speed, tracks too tight, sandy/rocky ground, operating the machine for long distances in reverse and turning in the same direction most of the time.
Rollers and rock guards are obvious. To check idlers, run the machine back and forth, watching for side movement of the front of the track. That indicates worn bushings in the idler.Larry NE IL

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