B6200D Backhoe Subframe

They didn't make subframes for a tractor that old back then. Subframes are newer technology about maybe 10 years old or so.

You want to avoid a 3 point hook up if possible. You are correct, it puts to much strain on the tractor. The part # you reference 71-20-305, is that the correct subframe for mounting the KM190 to the B6200? If it is you could have a welding shop just fab one up from the drawings. Most older tractors used a ladder type subframe. My B7100 the subframe connects at 2 points to the tractor. Once just below the rear axle and then it traves forward to just below the loader uprights and bolts to the cross member. The ladder subframe was the standard (at least with the Woods backhoes) back in the late 70's and the 80's. A ladder style subframe stays with the backhoe when removed from the tractor.
This subframe is almost the same as what is on my tractor.

Eric McCarthy said:

They didn't make subframes for a tractor that old back then. Subframes are newer technology about maybe 10 years old or so.

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You can't just keep making this stuff up Eric.

My subframe and mounting arrangement is very similar to the pic that Kubotasam posted. My backhoe came with part of the subframe for an unknown tractor. I got the Woods/Kubota install manual for my model tractor and backhoe and then built the subframe and tractor side bracket to look like the pictures. Works great.

I didn't really consider those to be subframes since they came off with the backhoe attatchment. I supposed its all in how you look at things.

Hi and welcome ot OTT, you are sure to find all the help and info you may require here

You will find it very difficult to find the correct subframe for your 190 backhoe to be honest as with most kubota backhoes made for the smaller machines the subframes tend to get sold on with the backhoe itself.
Making a subframe is not difficult but you do need to make sure its upto the job and will fit your specific machine, also you'll neeed to take into ground clearance and any specific fitment issues on your 6200 chassis such as brake/clutch pedal pivot shaft (which gets in the way)also access to hydraulic drain points etc.
I am current fabricating a specific subframe to allow fitment of my lewis 200 backhoe on my B8200.
I am using a lewis parts diagram and comparing the subframe from a kubota BF300 loader subframe setup , that way i'll get a good strong and secure assembly.
As with all these type of fitment, strong a subframe is crucial and its needs to be a full length unit, ideally fixed to the rear axle casing lower mounting points also attached to the front chassis / engine mounts, with centre fixing to the drive shaft tunnel. this mehod enures you have dont over stress the tractor chassis and possibly break the tractor chassis.
You need to keep the weight of the backhoe low down and close to the rear end as possible .
if you need any pics drop me a line, if i get timei'll post some pics later.

good luck
rob

just been thinking, is this a KM190 or a KMS190 .
just looking for my manuals, both of these may be a little bit big for your 6200, i know the kms190 is a b8200 fitment and is hefty lump comprared to other similar sized backoes.
just a thought
rob

Welcome to OTT, Iain!
I agree with Rob- either build a subframe, or have one built for you. If you would come across a subframe for sale, it will likely be very expensive- why not build one that can surpass the strength of the original, have no stress damage to it, and probably spend less money?
Hopefully the backhoe that you have already purchased isn't too big for your tractor. Good catch there, Rob.

Do you have pictures of the attachment brackets that stay on the tractor? One of the most important things to consider is to be sure the load on the tractor is distributed as evenly ans possible. Try and stay as close to factory on the mounting position and bolt holes as you can.

Nice to hear you are making progress with it, these small backhoes maybe small by name, but they are most certainly not lightweight items, as i have found from expereince, they are not easy to move around when not fitted to a tractor properly, been there and paid the price on our driveway.
I have only just finished fabricating a new 2 -peice subframe for my b8200 and lewis 200 backhoe, and, its been a bit more of a challange than i had first thought.
I had to make up the tractor subframe as a multi-section item just to make it a tad easier to fit to and remove to be honest, the backhoe section is a one piece section.
It took a while to get it all sized and sections fabricated etc but got there in the end.
Used 12mm "L "section for the main parts with 12mm - 20mm flat for other parts, also used m12-16 bolts and extra web sections for strenght on stressed sections.
A word of advise to you, as easy as it may sound to just throw togheter a subframe, its not quite that straight forward and there are a lot of factors to consider as to how its gong to fit, onto what, and in one piece or as several sections.
anyway, good luck with it and keep us upto spec with your progress.
I am in the process of uploading pics of my project frame , maybe of help to you.

Just started a new thread on the subframe theme, added more details and pics (not brilliant though ) specific to my project but i suspect will apply to most people doing silmilar projects etc.

rob