noise in kubota b2630

[1396]

my b2630 recently started making noise only in high range.The dealer said it is hydraulic noise. when i press down on peddle i hear a high pitch noise. After it warms up it stops. It never did it before.anybody hear the same noise?

 

[RonVL4]

Mine does not do it. Yet that is (knock on wood)! How many hours do you have on it and is the dealer telling you that noise is normal?

 

[bp fick]

Do a couple things to assure your mind.

1. Check HST fluid level? Already have, no doubt.
2. Pull the HST screen and clean it. If you use a cork or rubber plug, you won't hardly lose enough to speak of. Top off the few ounces you might lose.
3. Park the tractor, after a solid use, on a clean dry spot on cement, in your garage or shop. A place that is very clean. Or, park it on clean, dry cardboard laid out on the floor. Look for ANY spots of fluid after 24 hours.

The reason I mention this last item is that if there is a loose fitting somewhere, anywhere, the leak drip will show up eventually. Mine came with a loose hydraulic line fitting. Once I found that loose fitting and tightened it, my HST was noticeably quieter. If a fitting sucks a little air, the noise is quite bad.

In any case, these HSTs are not quiet by any means. Best Wishes

 

[1396]

My kubota has 148 hours on it. I changed both transmission filters and new fluid. Where is the HST screen located...nowhere in my manual.

 

[1396]

my b2630 recently started making noise only in high range.The dealer said it is hydraulic noise. when i press down on peddle i hear a high pitch noise. After it warms up it stops. It never did it before.anybody hear the same noise?

i have 148hrs on tractor.Changed both transmission fliters and hd fluid.

 

[bp fick]

i have 148hrs on tractor.Changed both transmission fliters and hd fluid.

Did you find the HST screen? To find it, crouch down very low facing the rear of your tractor. On the bottom left of the rear end, you will find a large, 1 inch sized cap, a nut. That is the cap nut that you must remove to gently pull out your screen. Have a tapered cork or rubber plug ready. You can stop up that hole and not lose but a few ounces of your sudt fluid.

Messicks have a step by step photo series on their website, I believe, It might help you.
http://www.messicks.com/Articles/KubotaBX-Service.aspx

Perhaps you already found it, and cleaned the screen? Has the noise subsided since you changed your fluid?

 

[Earl Ohl]

Do a couple things to assure your mind.

1. Check HST fluid level? Already have, no doubt.
2. Pull the HST screen and clean it.

I don't think his B2630 has a screen. I was looking for one when I did my hydraulic service on my B3030 & couldn't find one. I called the dealer & asked. They said it didn't have one. Maybe Messick's will respond & confirm this.

 

[bp fick]

Oh!!!! You are right! My bad. Brain freeze.

 

[Hillfarmer]

I have a 2006 B2630 and it squeals every winter. I have noticed that it only happens when the tractor is in motion. Therefor indicating transmission and like yours will stop once the tractor warms up. I am using UDT but my dealer recommended it for this climate. I have also noticed that the noise gets louder as the RPM's increase.

 

[bp fick]

Sometimes small leak will suck enough air to cause a louder whine in the HST. I know mine did until I found the line coupling loose and tightened it.

Apart from that, a bad HST fluid filter, or an O ring from the old filter being left on there, so that now there are two rubber O rings on the HST filter.

Also, if the noise is only during warm up, this is precisely where Super udt is a superior product and why, I believe, Kubota went to it. It is quick flow, quicker to warm up, and multi grade at a lower flow rate. It's worth a try, really, really is. These HSTs are noisy enough when all is well.