Posted by Harvesterguy on April 20, 2009 at 06:00:20 from (128.175.85.60):
In Reply to: 5488 power hop posted by Jeff Smit on April 19, 2009 at 17:35:05:
Here are the general rules for weighting and ballasting an MFD tractor to minimize power hop.
-Tractor should be weighted 35% front 65% rear. -Inflate tires to specifications for the axle load. -If power hop persists, raise front tire psi in 2 psi increments. Do this up to 3-4 times. -If front axle psi adjustment does not work, return to specs. and lower rear psi in 2 pound increments. -If all else fails try to reduce front weight and increase rear weight.
Typically, power hop is caused by too much pulling from the front axle relative to the rear. To eliminate hop the goal is to reduce the traction on the front axle and increase the rear.
Check out these links for more info: http://www.canr.msu.edu/vanburen/tractortireballastmgmt.pdf http://ohioline.osu.edu/aex-fact/0530.html http://www.michelinag.com/agx/en-US/htbuyt/control_power_hop/power_hop_mfwa_tractor.jsp http://asae.frymulti.com/data/pdf/6/phit2008/LecSeries32_fry.pdf http://bsesrv214.bse.vt.edu/Hop/
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