FROZEN GRASS HEIGHT KNOB

mrrog · May 11, 2018

Just traded for an '05 Kubota BX1500. It has a few small maintenance issues. Previous owner did not keep up with them. For the most part tractor is in great shape. I rehabbed the mid mount mower deck, re-installed it on the tractor but the grass height knob seems to be frozen. I can't find anything on you tube or the mower manual that indicates what that knob does, or what it attaches to. ANYONE HAVE A CLUE???

oosik · May 11, 2018

On my '05 JD G100 the "grass height" knob adjusts(up or down) the stop point for the mower deck and thereby adjusts the height the grass will be cut at. You need to get your eyes where "no man has gone before" and follow that up with WD-40 or its equal.

firemailwv · May 11, 2018

mrrog said:
Just traded for an '05 Kubota BX1500. It has a few small maintenance issues. Previous owner did not keep up with them. For the most part tractor is in great shape. I rehabbed the mid mount mower deck, re-installed it on the tractor but the grass height knob seems to be frozen. I can't find anything on you tube or the mower manual that indicates what that knob does, or what it attaches to. ANYONE HAVE A CLUE???

Is the deck lifted all the way up when you are trying to turn the knob?

mrrog · May 11, 2018

UHOH, Now that I looked at it, it appears that the deck is not totally in the up position. Started the tractor and don't think the deck is at the top. I probably did something wrong when I hooked it up. I think that I missed a knob adjustment step. What now??

skipperbrown · May 11, 2018

When you lift the deck with your hydraulics to max height, the knob should turn freely.

Dan33Klein · May 11, 2018

If the knob is stuck in the top position the adjustment rod at the back of the tractor may need adjusted. When you lift hydraulics to max night sometimes it doesn’t actually get the deck linkage high enough for the adjustment knob to be taken out of the top position. Usually this is noticed when your not able to get the height adjustment know into the top position from a lower position, but not always.

BleedingOrange · May 11, 2018

On my BX2370, I have to run my rpms at about 2500, and lift the deck til I hear the fluid bypass kick in.
Also, are you aware that you can only turn the height adjuster knob clockwise?
Try those couple of things on yours, and see if that helps.

milkman · May 11, 2018

I've heard of them sticking especially if not used for a long time. The height adjuster knob will just pull off and you can shoot some penetrating oil, I like Kroil, down along the shaft and it should loosen up. Make sure the lift is up and the linkage not resting on the adjuster stops when you try to turn it.

mrrog · May 12, 2018

milkman said:
I've heard of them sticking especially if not used for a long time. The height adjuster knob will just pull off and you can shoot some penetrating oil, I like Kroil, down along the shaft and it should loosen up. Make sure the lift is up and the linkage not resting on the adjuster stops when you try to turn it.

THANKS SO MUCH GUYS FOR ALL THE GREAT KNOWLEDGEABLE HELP. I'll try some of that stuff, but what I really need is a break away drawing showing me the linkage. I'm a totally image driven person. If I can SEE how something relates to its corresponding part, i can usually figure out how it works, or why it's not. ANYONE KNOW OF SUCH A DRAWING??? For now, I'll try some Power Blaster to see if anything happens. THANKS AGAIN, MrRog