I have mine adjusted so it does not bottom out, I'm 190lbs. Are you guys sure your are turning the adjustment knob the right way? I will measure how far I have the knob turned out tomorrow and so you guys can try it.
seat springs. Kubota grand L seat
- Thread starter allen in texas
- Start date
texasjohn
Super Member
My grand L, with cab, I weigh 230 ish...bottom out only when I'm driving too fast over too rough ground for no good reason. When I first got tractor, bottomed out all the time until I discovered the knob under the seat that adjusts spring tension...twisted it tight and solved the problem.
4shorts
Elite Member
When I had my 2008 Kubota GL4240HSTC the seat was good. Yes their were times it bottomed out but it was rare. The foam In the seat was soft and comfy as well.
When I got the 2011 Kubota GL 5740 HSTC I knew something was differant the minute I sat it it. The seat felt as hard as a rock. It bottomed out twice as much as the 4240's seat even when the spring tention was wound up as tight as it could go but when I had to travel the machine that's when life in the then 20 hour tractor was miserable.
I knew then I had to do something about it and after many hours of research I ended up installing the Grammer air ride seat. Yes it wasn't an easy install because the seat I used was never installed in a tractor like it before but now that I have 115 hours on the machine I can say it was hands down the best thing I ever did to this tractor.
I guess Kubota heard all the complaining because the air ride seat is offered as an option in the new 60 series tractors.
When I got the 2011 Kubota GL 5740 HSTC I knew something was differant the minute I sat it it. The seat felt as hard as a rock. It bottomed out twice as much as the 4240's seat even when the spring tention was wound up as tight as it could go but when I had to travel the machine that's when life in the then 20 hour tractor was miserable.
I knew then I had to do something about it and after many hours of research I ended up installing the Grammer air ride seat. Yes it wasn't an easy install because the seat I used was never installed in a tractor like it before but now that I have 115 hours on the machine I can say it was hands down the best thing I ever did to this tractor.
I guess Kubota heard all the complaining because the air ride seat is offered as an option in the new 60 series tractors.
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71bronco
Gold Member
I have a 3240 no cab and can adjust it so it won't bottom out. I'm 6'2'' and 260 and adjust the seat so it only bottoms out on the worst bumps. Sounds like something is wrong with yours. :confused3::confused3:
Jeff
Jeff
OP
allen in texas
Platinum Member
- Joined
- Oct 26, 2007
- Messages
- 916
- Location
- Levelland, TX
- Tractor
- Kubota Grand L 5740, loaded R1's w/640 lbs cast weight, 854 loader
I checked last night. The knob is cranked as far as it will go and the bracket holding the springs is pulled up tight against the seat frame. The springs are stretched as far a they can be pulled. I sat down and bounced just a bit and it was very easy to bottom the seat but it seemed to squeak a bit. I lubed it up with WD40. Bad Idea. Now it bottoms even easier but at least it doesn't squeak.. I am going to see if I can find stronger springs or perhaps add a couple of smaller diameter springs inside the factory springs. The springs just aren't strong enough. I'm not going to spring for an air ride seat. I'd like to but...
more info, for what it's worth.
Spoke to my dealer this morning and asked about this issue. He said he is aware of the problem and has a lot of fella's complaining about the same thing. There is not, at this time, a fix from kubota but it is being addressed.
more info, for what it's worth.
Spoke to my dealer this morning and asked about this issue. He said he is aware of the problem and has a lot of fella's complaining about the same thing. There is not, at this time, a fix from kubota but it is being addressed.
Last edited:
OP
allen in texas
Platinum Member
- Joined
- Oct 26, 2007
- Messages
- 916
- Location
- Levelland, TX
- Tractor
- Kubota Grand L 5740, loaded R1's w/640 lbs cast weight, 854 loader
Maybe I should note that my tractor is a ROPS, not a cab. Don't know if the seats are different.
94BULLIT, I see your tractor is a 2012 model. Maybe they changed the springs on the later model. Mine is a 2010 and the "spring puller hootie" is pulled solid up against the seat frame in the front. No more adjustment.
94BULLIT, I see your tractor is a 2012 model. Maybe they changed the springs on the later model. Mine is a 2010 and the "spring puller hootie" is pulled solid up against the seat frame in the front. No more adjustment.