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Old 09-01-2019   #11
Lencho

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Equipment: B7100hst
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Default Re: Fabricating Loader Sub Frame for B7100 HST

This sounds like your chance to justify buying a weldor!
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Old 09-02-2019   #12
Yooper

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Default Re: Fabricating Loader Sub Frame for B7100 HST

What G.rid said. Simple modification for someone with experience. You have done the hard part figuring the length with the mdf.
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Old 09-02-2019   #13
taranakiguy
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Location: Hamilton, New Zealand
Equipment: B7100-D HST
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Default Re: Fabricating Loader Sub Frame for B7100 HST

Quote:
Originally Posted by G.rid View Post
How about a combination of the two options.
If the B6100 sub frame is only short in 1 or 2 areas. Take your wooden set up with you to a local welder. They should be able to stretch your steel frame to the lengths of your wooden one.
Thanks G.rid... Yip good option... the rear of the required subframe (where it bolts onto the rear axle would be quite difficult to cut out correctly (Unless perhaps waterjet cutting?) so I figured I'd sacrifice the purchased subframe so that this rear section can be "recycled"

The "rails" of the subframe have a "cut out' where the Brake pedal mount is... therefore to make the B6000 subframe fit with my tractor, it would have to be cut and extended at both the rear and the front... so I figured it would be easier just to start with new 4" flat bar.
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Old 09-02-2019   #14
taranakiguy
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Default Re: Fabricating Loader Sub Frame for B7100 HST

Quote:
Originally Posted by Lencho View Post
This sounds like your chance to justify buying a weldor!
Hey Lencho, Almost embarrassed to admit I have a welder in the garage... (I recently inherited it from my father) I just wouldn't want to trust my welding skills on a project like this!!! *makes mental note to research welding night classes.

That said... I did have to shorten the struts in the attached Pic by 130mm (the subframe on the previous tractor obviously sat a lot lower, and I wanted the additional clearance under the tractor) So... I broke out the angle grinder, cut the struts shorter, ground the original weld off the horizontal plate and plucked up the courage to tack weld the shorter strut back on to the plate...

I'm sure the engineer will take one look and shake his head!

And before you ask... Yes... It is meant to be leaning forward like that! lol
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Last edited by taranakiguy; 09-02-2019 at 11:55 PM.
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Old 09-02-2019   #15
taranakiguy
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Default Re: Fabricating Loader Sub Frame for B7100 HST

Quote:
Originally Posted by Yooper View Post
What G.rid said. Simple modification for someone with experience. You have done the hard part figuring the length with the mdf.
Thanks Yooper... Just wish I had a few more tools and a bit more experience with the welder... and I'd give it a crack myself...

That said... I do intend to attempt to weld the "Bonnet Protector" that came with the B6000 subframe onto the structure that the engineer is making for me... (I figure that is more cosmetic and as such the strength of the welds will be less critical )
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Old 09-03-2019   #16
Yooper

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Join Date: May 2015
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Default Re: Fabricating Loader Sub Frame for B7100 HST

Always enjoy it when fellow OTT members roll up their sleeves and get after something. Get a few pieces of scrap metal and practice welding before you attempt your project. And that grinder is your best friend. Grind the surfaces before you weld and get the metal shiny clean. And remember we are here to help if you need it. Good luck!
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Old 09-05-2019   #17
Lencho

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Default Re: Fabricating Loader Sub Frame for B7100 HST

Yooper has it right, start small and keep learning!
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Old 11-13-2019   #18
taranakiguy
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Default Re: Fabricating Loader Sub Frame for B7100 HST

Well... it's been a while but I'm back with an update

Progress since last post...

I now have an operating Front End Loader on the Tractor!!! I haven't had a chance to put it under any load yet.. but she moves up and down and seems to do all the right things.

As per my last update, I was getting an engineer to fabricate the Loader sub frame after I made a template from MDF... it took him some time to complete and I completely underestimated the time (and therefore cost) of him doing this... He charged me 22 hours to fabricate the subframe and also create a Hydraulic Diverter Block so that I could drive the loader...

Anyways... you can see from the pictures the net result... I still need to take everything back off the tractor and paint... but given the tractor is not in the prettiest of states, I'll get around to this at some point.

Things I've learned...
* Engineers are expensive
* Hydraulic Hoses and Fittings are expensive
* The Vapormatic Hydraulic Control Valve that came with the loader needed a $1 part to convert one of the outlets to power beyond port.
* The loader definitely needs a "return to tank" Line
* Make sure you get the "return to tank" and "power beyond" plumbed the right way... or else you have no 3 point linkage hydraulics (and surprised I didn't blow anything)
* Don't run the tractor out of diesel while troubleshooting why the hydraulics are not behaving correctly!
(Plus side is, I now know how to bleed the fuel system on a B7100)
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Last edited by taranakiguy; 11-13-2019 at 01:52 AM.
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Old 11-13-2019   #19
taranakiguy
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Equipment: B7100-D HST
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Default Re: Fabricating Loader Sub Frame for B7100 HST

A few more Pics of the Plumbing.

The Return to Tank line is too short, So I will need to get a longer one made so that I can re-route it away from where it currently sits (a tripping hazard when getting on and off the tractor)

Also the return to tank connection/fitting seems to have tapered thread, so the cap won't screw all the way in... I'd like to find another solution for this
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Last edited by taranakiguy; 11-13-2019 at 01:52 AM.
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Old 11-13-2019   #20
taranakiguy
1st Yr. Apprentice
 
Join Date: Apr 2019
Location: Hamilton, New Zealand
Equipment: B7100-D HST
Posts: 47
Default Re: Fabricating Loader Sub Frame for B7100 HST

And some over all pics of the tractor with the loader attached.

Seems to fit the size and look of the tractor well, I'm glad I shortened the Loader mount struts (by approx 130mm) otherwise I feel the loader would have sat far too high.

The cross brace the sits above the bonnet, is a pain as it needs to be removed to lift the bonnet, wondering if this can be removed without affecting the integrity of the loader???

A video of it operating is here:

https://youtu.be/zLCeqS5V_WE
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Last edited by taranakiguy; 11-13-2019 at 01:46 AM. Reason: Adding youtube link
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