Posted by Mtjohnso on June 19, 2021 at 19:39:46 from (174.21.103.205):
I have two sickle bar mowers that are given me different results in the field. Mowing grass hay. I one field I used. New Holland 451 sickle bar mower. It is a rear mount with pitmanless head. 7 ft bar. In regular or heavy thick grass hay it cuts very nicely. But when I went to a field where the hay was thin and light the hay falls onto the bar and will not move off very well eventually clogging the mower and it will not cut anymore hay until I lift bar and clear. . When the hay got thick in another part of the field it was fine. I got out my Farmall Super A with a mid mount pitman sickle bar mower. And it handled the light hay with no issues. However when it got to the thick grass it struggled and started to plug. I think the issue is the hold downs in the bar. The bar on the new Holland is set with no tilt to it I think the Super A is the same. The skids I dr the bar on both is set to max height. The new Holland is run at 540 RPM. The Super A just runs max Engine RPM in first gear to make it through. I have a manual on both and have been looking through them but no Inform in them that I have seen so far. I did try varying the speed on the new Holland mower( using hydrostatic transmission to vary ground speed). It seemed better going faster but it was still not mowing cleanly. Thoughts? Where to look?
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