Balancing brush cutter blades

[pequeajim]

</font><font color="blue" class="small">( Weigh them on a scale. )</font>

Thats is EXACTLY right. Althought not much of a tractor guy, I fly large scale helicopters and beyond lateral and chord, the most important thing is tp put both the heli blades on a scale and weigh them, then balance them on a sesaw type of balancer.

I would think it is the same principle for any swinging blade set.

 

[RegL]

Never weighed or balanced the blades on my 60" PT brush hog and it runs so smooth I have to take a peek at the motor some times to make sure it's running. If it started to vibrate, I would be looking for something other than unbalanced blades. Maybe loose motor mounts or bent stump jumper or maybe worn bearings. Just my thoughts but I think the blades would have to be way off to get the brush hog jumping around.

 

[MossRoad]

When mine starts jumping, it is usually the blade stuck on the bolt that is supposed to stop it from getting stuck on the other blade /forums/images/graemlins/tongue.gif

I'll have to try the fix about putting in a longer stop bolt and washers that was mentioned several times over the years, but I have been too lazy to do. /forums/images/graemlins/grin.gif

 

[BobRip]

This was not a severe unbalance, but you could see the entire bush hog wobble a little bit. No feel in the PT422. I balanced them last night by using a scale and it's a lot better.

Bob Rip