Mower Belt Tension

Thu Apr 15, 2004 3:59 pm

I have a standard 4ft belly mower on my cub. In one of the discussions from the last week someone mentioned that the belt should be kept tight. Took a look at mine and tightened it up. I now get less vibration from the belt, but seems to have put a lot more load on the tractor. Is there a good way to know if I have overtightened it??? How do you measure it.

Also - started hearing some clicking from the backend. Remembered someone saying check all of the tire and rim bolts. I did and sure enough a couple of the rim bolts were hand tight. Tightened them all up and no more clicking. I was afraid it was coming from the tranny and was getting up the nerve to tear into it. Thanks again for all of the help and experience from this board :D

Thu Apr 15, 2004 4:23 pm

Malcolm, the rule of thumb I have always gone by is that you should be able to deflect the belt 1" laterally for every 12" of distance between 2 pulleys. That is, if 2 pulleys were 3 feet apart center to center, you should be able to deflect the belt 3" from a straight line at the mid point between them. This is something my dad taught me years ago and it has always worked for me.