On my TX66 when I use auto float the reel speed is very erratic, moving from very slow to very quick every 30 seconds or so. The speed is alot more stable when using the header manually. It is driving me up the wall. I have checked all the belts on the variator pulley and kept everything greased, my guess is the problem is electrical. Please help as my boss is reluctant to get Murleys out to a problem which he thinks is not important, fool. E-Mail your answers