Does a Hard Cab INCREASE Perceived HST "Whine?"

[My Hoe]

Hi again,

I thought I wanted an open-station, foldable-ROPS B2630 until very recently, but now I'm leaning toward a B3030HSDC, but I'm not a fan of the HST's (seemingly-inherent) "whine."

Won't a cab of any kind, especially a METAL/GLASS one, amplify the perceived HST whine?

I've been reading a thread on here recently about folks who have drilled and filled their ROPS with a variety of foams, and greatly, if not completely (?) decreased their HST whine.

So...IS there any hollow-tube, ROPS like structural members inside a B3030HSDC that could be filled in such a fashion, or is the cab itself the only ROPS, and possibly only made up of angle-iron-type steel, with no hollow-tubes, like a fixed or foldable ROPS, that could be filled.

Also, even if tube-filling works, and there are tubes in the B3030HSDC's cab that could be filled, won't the glass and steel cab STILL "hold in" more HST whine than on an open-station tractor?

Thanks in advance!

My Hoe

 

[srs]

My Hoe, I have a cabbed B3030 kubota with the HST transmission and I feel the "whine" is a little loud. If there is any complaint I have about this tractor I think it would be the sound level. It is most noticeable when cutting the grass when the RPM's are high. Any other time it's not too bad. Would I go back to an open cab, ABSOLUTELY not!! When it's time to move snow you can't beat the enclosed cab with the heat. This applies also in the summer time where the temperature is near a 100 degrees or hotter and I'm sitting inside a great air conditioned tractor. It is my understanding the new B3000 has increased sound proofing but I haven't seen one in person (looks identical to the B3030) so I can't verify if it is in fact quieter. One of the issues with the HST, on any brand, is the whine. So I guess it's the give an take of having a great transmission in a heated/cooled tractor and having to put up with the whine. As somebody mentioned it's a tractor and not a Lexus. I'm not sure what area you live in but if you move a lot of snow or it's extremely hot I personally feel you will love the cabbed tractor. Good luck with your decision. Let us know what you decide. Stanley

 

[TripleR]

I pretty much only run cab tractors now. My 5030 does whine some, but it sure isn't as noisy as everything else; all you have to do to appreciate how much quieter it is, is open the cab door while operating something like a MMM deck or especially a rotary cutter.

 

[MessickFarmEqu]

Yes, cabs make HST whine much louder.

 

[lawn_king]

Yes, cabs make HST whine much louder.

Im not 100% onboard with this opinion. On my B7500 with curtis cab & my B3030 with factory cab i would agree. I think my GL 3540 factory cab is actually quieter!

 

[srs]

I think my GL 3540 factory cab is actually quieter!

From what I've heard the factory cabs on the Grand L series are substantially more quiet then the 3030, and a completely different trans. I wish the HST transmission that is offered in the L series would be offered in the B series. A friend of mine has the 3240 (non cabbed) and he raves about his HST.

 

[grsthegreat]

Yes they do....but the a/c, heater and radio will help solve that :laughing:. Without any cab the only whining youll hear will be the operators

 

[srs]

Yes they do....but the a/c, heater and radio will help solve that :laughing:.

Ain't that the truth!

 

[Minotbob]

I just put a soft cab on mine and I was ready to take it in for a checkup when I first ran it with the cab on. I took the cab off and the loud whine went away. I'm not real happy about it but no much I can do.

 

[grsthegreat]

I just put a soft cab on mine and I was ready to take it in for a checkup when I first ran it with the cab on. I took the cab off and the loud whine went away. I'm not real happy about it but no much I can do.

Is there any sort of new framework that you had to install? or does it just attach to existing metal. I was thinking maybe any new frame may cause some noise import??

 

[Minotbob]

It hangs from a fiberglass canopy. I got it from Cover My Tractor - Tractor Covers, Tractor cover, Tractor Cab, Tractor Cabs, Skid Steer Covers, Tractor enclosures, tractor enclosure, cab enclosures, cab enclosure, construction equipment covers, construction tractor covers, riding lawn mower covers

 

[brewdog]

The cab definitely amplifies the sound but heater and dry seat more than make up for it.

 

[Goosen1]

I was talking to a few people that have a tractor with HST and a cab.. They said the only way to get rid of the "echo" is to use sound deadening material where ever there is a painted surface. Then also to use a thick insulating blanket for under the seat. They said it will take care of at least 75% of the noise.

 

[brewdog]

I was talking to a few people that have a tractor with HST and a cab.. They said the only way to get rid of the "echo" is to use sound deadening material where ever there is a painted surface. Then also to use a thick insulating blanket for under the seat. They said it will take care of at least 75% of the noise.

Great post! That's interesting and I may give that a try. I've got a lot of glass on mine but it's worth consideration.

 

[MHarryE]

I do notice the whine more but overall it is much quieter than the open platform. When using my old L3710 open platform I had to use hearing protection. In my new L5740 I can listen to my radio at a comfortable volume level with no problem, full throttle, heavily loaded. The floor mat on my open platform was just a mat but my cab has 3 different density foams under the mat. Not as quiet as our big Deere ag tractor though.

 

[tiredguy]

I've owned a B3030 with cab almost 3 years, and you bet the HST whine is the only drawback I've found. I always use ear muffs on my other open station tractors but they're not HST so it's to deaden the sound of everything else. I've thought about putting Dynomat on the floor up over and under the seat as that's the only place you really can, plus that's where it would do the most good. I haven't though as that creates a whole different problem first and foremost, it's not a car I'm traveling the country in LOL!
Between mowing & snowblowing it's only really noticable when just moving things around or using the box blade or whatever else I might put behind it.

I haven't yet but will be putting a plug in for headphones because I can't hear the radio unless it's cranked up louder that it should need to be and it's more anoying than the "whine". The heat in the winter while snowblowing and the air in the summer while mowing simply can't be beat. I'll never live long enough to wear it out most likely but if something happens I'll be buying another one immediately with a cab as it's the only way to since I'm spoiled now. If your needs are anything like mine you certainly won't regret it.

Oh, if you plan on using a snowblower on it be sure and spend the extra on a front mounted setup. If you're going to spoil yourself like I did don't go half assed and treat yourself to the joys of not having a sore neck and back from looking backwards to see where you're going. Besides that the speed at which you can get it done because you have such clear vision forward will make the job even more of a breeze just like not getting all bundled up to do the driveway will save you time.
:thumbsup:

 

[My Hoe]

tiredguy,

Thank you for the VERY helpful feedback, and I totally agree with you on the front-mounted blower. The idea of the neck and back stress, coupled with the fear that I am going to inhale something living or damaging and expensive to fix, (which would GIVE me neck stress, all by itself!) makes me 100% "on board" with a front mounted blower. LOL

I do have a question:

There is a known issue of (some) of the newer B-series (that replace the B2630 and B3030HSD and B3030HSDC) have a VIBRATION ISSUE, at or near PTO speed, and possibly at lower RPMS as well.

There are lots of threads on this, if you search here.

Can you comment on your B3030's inherent vibration, as felt through wheel, butt, joystick, ('er, the loader valve ) or whatever?

I tested a 2005 B2630 (a three cylinder, as opposed to the B3200 and B3300s' 4 cylinder engines) and it was smoother than a newer BX25's (smaller) 3 cylinder engine.

Some people have filled their solid ROPS tubes with foam, and almost, or "completely" eliminated their HST whine, per threads I've read here.

Are there any solid tubes in the B3030HSDC's cab-ROPS protection, that could be similarly "drilled and filled"?

Thanks,

My Hoe

I've owned a B3030 with cab almost 3 years, and you bet the HST whine is the only drawback I've found. I always use ear muffs on my other open station tractors but they're not HST so it's to deaden the sound of everything else. I've thought about putting Dynomat on the floor up over and under the seat as that's the only place you really can, plus that's where it would do the most good. I haven't though as that creates a whole different problem first and foremost, it's not a car I'm traveling the country in LOL!
Between mowing & snowblowing it's only really noticable when just moving things around or using the box blade or whatever else I might put behind it.

I haven't yet but will be putting a plug in for headphones because I can't hear the radio unless it's cranked up louder that it should need to be and it's more anoying than the "whine". The heat in the winter while snowblowing and the air in the summer while mowing simply can't be beat. I'll never live long enough to wear it out most likely but if something happens I'll be buying another one immediately with a cab as it's the only way to since I'm spoiled now. If your needs are anything like mine you certainly won't regret it.

Oh, if you plan on using a snowblower on it be sure and spend the extra on a front mounted setup. If you're going to spoil yourself like I did don't go half assed and treat yourself to the joys of not having a sore neck and back from looking backwards to see where you're going. Besides that the speed at which you can get it done because you have such clear vision forward will make the job even more of a breeze just like not getting all bundled up to do the driveway will save you time.
:thumbsup:

 

[ORiley]

I was talking to a few people that have a tractor with HST and a cab.. They said the only way to get rid of the "echo" is to use sound deadening material where ever there is a painted surface. Then also to use a thick insulating blanket for under the seat. They said it will take care of at least 75% of the noise.

I've done this to the hard cab on my itsy-bitsy BX2230. Not because I wanted to deaden any noise, I just wanted to dress it up a little. Gonna add an iPOD dock and some speakers, maybe a satellite dish and small flat screen duct taped to the windshield. I don't know, there's room in the fuse box for lots of stuff...