HST squeal

[iwh1952]

Thanks for your input Halftrack. My problem only shows up in the winter and I do believe it has something to do with lubrication, however, it is on the output shaft ( before the boot ). It's on the front drive output shaft at the transmission and there isn't a boot on it. Personally, I think the problem originates in the transmission. The output shaft has to have a support bearing and for some reason, the shaft is not being held to center, allowing the shaft to rub the housing as it exits the trans. I will live with it for now, knowing that it very well could be an expensive fix. Thanks for your help. W

Let's do a little more analyzing of the problem. Is it occurring only during cold weather or year round? If year round, I agree its probably a lube problem. If it is a cold weather problem, let's consider the HST. Next time you start the tractor, put the range selector in neutral and press the pedal and see if the squeal is there. If so then the pump is telling you it is not getting oil and complaining about it. If this is the case, extend your warm up time, run both pto's during warm up, depress your pedal slightly and put the cruise on, and if you have one, cover the oil cooler in front of the radiator. The other solution is a tranny drain and refill with winter grade tranny oil. NH 134 should be replaced with NH F200. A magnetic heater stuck on the transmission might also be a consideration. Let us know what works. And WELCOME to the group.

 

[phila4x4]

My 1996 New Holland recently started making a squealing noise but only when going forward I don’t hear it when I go in reverse. It just started this summer.