Grand L seat replacement

[droy]

After visiting the local Kubota dealer and looking at the air seat on one of the M models, I am seriously considering going with a Grammer. I remember sometime back someone (think it was 4 Shorts) had posted an excellent thread with pics about modifying the seat pan on the L. Doing a search, I found his posts, but the photobucket pics were removed for some reason. After a lot of searching, decided to try a shortcut- wondering if someone could direct me to a similar thread that has pics, or if anyone knows if an air seat is available that would be a bolt in, not requiring seat pan modification.

Parts gal quoted me $1400+ for the replacement seat of an M model, & tomorrow (Monday) is going to check to see if Kubota offers an air seat that would be a bolt in for my 2013 L4740. I can get the same seat online for around $1000, and even found a Grimmer base for $625, which might be a better option, using my present seat cushions.

Any help, thoughts, advice, would be appreciated,
Thanks

 

[TripleR]

You might want to check this one out: http://www.tractorbynet.com/forums/customization/192419-my-new-kubota-air-ride.html

I already bought my Grammar seat shown in the following link and will do the installation with the help of another member and my son as soon as he closes on and gets moved into his new house and we finish up with some range work and bush hogging.

Good luck.

 

[droy]

Hello Triple R
The modification shown on the youtube link (post #48) is what I was looking for! That guy cut his pan, and leveled it by lowering the back, while others added a seat pan from the M series, which raised the front. I'm curious if one way is any better than the other as far as keeping the seat position as close to stock as possible.
Thanks again.

 

[Recoveryhill]

I had a bracket made to spread the mounting holes on my L3700 to accept a Michigan suspension seat. It was simple to design, cost me around a hundred dollars and worked like a champ. If overall height, width and depth of any seat is compatible with your tractor station, I can't see adapting to its mounting system as being much of a problem.

Bracket - $100. Seat - $325 Value - $10,000

The stock seat provided on an L3700 (SU) is not much to sit on!

 

[newbury]

I had a bracket made to spread the mounting holes on my L3700 to accept a Michigan suspension seat. It was simple to design, cost me around a hundred dollars and worked like a champ. If overall height, width and depth of any seat is compatible with your tractor station, I can't see adapting to its mounting system as being much of a problem.

Bracket - $100. Seat - $325 Value - $10,000

The stock seat provided on an L3700 (SU) is not much to sit on!

no pics?

Pics please.

 

[TripleR]

Hello Triple R
The modification shown on the youtube link (post #48) is what I was looking for! That guy cut his pan, and leveled it by lowering the back, while others added a seat pan from the M series, which raised the front. I'm curious if one way is any better than the other as far as keeping the seat position as close to stock as possible.
Thanks again.

The one with the modified pan is the one I am going with. It is beyond my ability, so I will be using the plans from 4shorts and the work is going to be done by another member who lives close by and uses the same process. My son is also a welder and will help him and hopefully learn the process. We don't have a metal shear so we will be using a plasma cutter.

4shorts and DDT used different seat models, the MSG75 SERIES is a low profile seat while the MSG93 SERIES is not, so I am not sure which approach is "best". I know nothing about all this stuff so I relied on 4shorts and mrmetalweld57 for guidance and they were exceptionally helpful, never could have done it on my own.

 

[4shorts]

The seat that DDT used is considered a fork lift seat. It's a much lower profile than the seat I went with. The seat I used was the closest to the orginal I could find after doing many hours of research. The new seat is the same height as the original but the problem is the grand l floor pan. The floor pan is on a sloap and the seat requires a level base so that's why I designed,fabricated and modified the floor pan. If you were to use the same seat I used and just plate over the floor pan and lay that seat on it you would be hitting your head on the ceiling.

So choices are.
Low profile seat = plate over floor pan
Seat like I used that closely matches the original = modifying floor pan.

I did the video to show how its done. It's not hard to do.

 

[PRF]

Hey Paul, is that seat plate something you would sell or fabricate from your shop? I'd love that seat in my 5740..

 

[4shorts]

Hey Paul, is that seat plate something you would sell or fabricate from your shop? I'd love that seat in my 5740..

The orginal seat plate is over $300. according to our local dealer so to buy one and modify it would be expensive but if someone were to send me their existing seat pan I could do the modifacation and send it back painted and ready to install. The turnaround would be fast because id do the modification the same day the seat pan arrived and ship it out the next day. The only thing left to do would be to drill four holes and bolt your new seat in.

Out of all the mods I've done with both our tractors when it comes to my personal health this seat is the absolute best and #1 in my opinion.
If I hadn't figured out a way to add the air ride seat the 5740 was going to be sold and I'd be in another brand tractor.
I spent three heavenly hours in the machine the last few weeks and it was soooooo comfy

 

[PRF]

Nice work ^^^ and that sounds like a win to me !!! I'm going to be plowing snow with my tractor and plan on keeping it for the long haul, so the seat is a must for the back.. Sending you a PM.. Thanks !!

 

[droy]

The orginal seat plate is over $300. according to our local dealer so to buy one and modify it would be expensive but if someone were to send me their existing seat pan I could do the modifacation and send it back painted and ready to install. The turnaround would be fast because id do the modification the same day the seat pan arrived and ship it out the next day. The only thing left to do would be to drill four holes and bolt your new seat in.

Out of all the mods I've done with both our tractors when it comes to my personal health this seat is the absolute best and #1 in my opinion.
If I hadn't figured out a way to add the air ride seat the 5740 was going to be sold and I'd be in another brand tractor.
I spent three heavenly hours in the machine the last few weeks and it was soooooo comfy

$300 for the seat plate???????!!!!!!!!!!!!!!!!!!!!!!
Pardon me while I pick my jaw up off the floor.
I have a welder neighbor that I will be visiting; for a few dollars, and a suitcase of beer, I think I can have my seat plate modified. Was thinking about purchasing a new one, and saving the original (why, I have no idea), but sheesh- that $300 would help toward the new seat cost & may even put SWMBO in a happier mood about this project.

Thanks again to all for the responses!

By the way, excellent pics!

 

[4shorts]

Yup. I was shocked as well over the cost. That's why I did the mod. Glad you liked the pics. Wifey took them with her phone.

 

[crazyal]

Driving around with that snow blower on may give people the wrong impression about how cold it is up north. :laughing:

 

[4shorts]

Driving around with that snow blower on may give people the wrong impression about how cold it is up north. :laughing:

:laughing: to tell the truth it was only 8 c here yesterday but it was a welcomed cold considering the heat we are after having. I'm planning on using the snow blower to spread the crushed stone today

 

[Recoveryhill]

no pics?

Pics please.

Sorry, none taken prior to install and it's now buried and bolted under the no flip seat..

Basically you have a four bolt mount to the stock seat for the 3700 and the Michigan seat had a four bolt pattern both wider and longer. I had a bracket made from 3/16 carbon steel with both the tractor bolt pattern and the new seat pattern. Bolt the new bracket to the tapped holes in the tractor, place the seat studs through the new holes, Nylock nuts drawn tight and done. Unlike 4Short's unit, the 3700 does not have a seat pan, the seat bolts directly to the casting.

The Michigan seat is not an air ride, it is a spring ride with adjustable tension based on weight. The air ride seats may involve more to mount, especially with a pan (see 4Shorts excellent mod) but the Michigan was such an improvement over the stock no ride seat that I'm happy.

 

[PRF]

Hey fellas,

It looks like you guys with the Grammer seat are using MSG93/721..

I noticed they also offer a wide and x-tra wide seat bottom as an option:

Seat Top Options:

721 seat top (standard seat top) /li>> 722 seat top (high back)
731 seat top (wide cushion)
732 seat top (wide cushion with high back)
741 seat top (extra wide cushion)

Since I have a rather large bottom myself (255 lbs. right now) I'm wondering if there would be any clearance issues ??

Thanks !!!

 

[4shorts]

Hey fellas,

It looks like you guys with the Grammer seat are using MSG93/721..

I noticed they also offer a wide and x-tra wide seat bottom as an option:

Seat Top Options:

721 seat top (standard seat top) /li>> 722 seat top (high back)
731 seat top (wide cushion)
732 seat top (wide cushion with high back)
741 seat top (extra wide cushion)

Since I have a rather large bottom myself (255 lbs. right now) I'm wondering if there would be any clearance issues ??

Thanks !!!

When I get in the office tomorrow I'll look up all the part numbers and post them for you. If I remember correctly I have the wide bottom and seat top. My memory has faded a bit considering I did this mod two years ago

 

[PRF]

When I get in the office tomorrow I'll look up all the part numbers and post them for you. If I remember correctly I have the wide bottom and seat top. My memory has faded a bit considering I did this mod two years ago

Thank you Paul, much obliged !!!

 

[4shorts]

Thank you Paul, much obliged !!!

OK. We found the invoice for the seat and the options I ordered with it. Providing Grammer hasn't made any design changes since 24/01/12 it will fit the Kubota Grand L 5740 but the bottom seat pan on the tractor MUST be removed and modified. The part numbers are as follows:

(1) DRV Seat, MSG93/721,12V,MTX CTH # 1219869

(1) Armrest A80/380, LH #1026778

(1) Armrest A30/380, RH #1026779

(1) Backrest Extension Fabric # 1053033

(1) Kit, Seat belt, 2 Retraction, Short B # 902133

(1) Literature Box Kit # 142259

My total with shipping: $1353.55

 

[PRF]

Beautiful !! Thanks for taking the time Paul, much appreciated...