Gentleman, 

I am going to look at a Cat HT4 for sale in near me in Ohio, I have a couple questions about the tractor before I go.  I've attached a picture of the tractor as well as a few others I found online with similar equipment.  
​​​​​​My first question is it looks like the HT4 has dozer mount points on the track frame? Is this common or did someone possibly mount D4 7U frames at some point? I attached some photos of an HT-4 with a blade mounted which was attached to the loader arms.   I don't think the owner has the loader frame, with the previously mentioned mounting points...could I mount a blade if I wanted to? 
It also looks like it has the wrong pads on the machine, dozer pads vs loader pads.

does anyone more knowledgeable notice anything? I only have the Trackson Serial, no D4 serial number.  Also, trying to find out if this unit is locked up or just doesn't run...so more to come on that.   

thanks for any help,
Nick 

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It would have a rigid frame though, not very good for a dozer setup.

This would be a better tractor.
www.facebook.com/marketplace/item/927950...cf-8f1d-9840fc503acb

It has in seat starting and an oil clutch and I would also say 5 roller track frames

Regards

I picture 3 you can see a clevis welded on the under side of the loader arm as well as bars on the U frame . I am guessing the bars are pined to the arms to lift the dozer blade.

Not that familiar with the 7u and the HT4. Guessing since the same base unit the track frames could be traded back and forth . Probably even the track frames for the heavier undercarriage would bolt on. If they did that in the same time period as the 7u.

@Rome K/G - Ya, i'm watching a few including the one you sent me...I wasn't sure if for scap value this one was worth saving for some of the options mentioned (dual circuit hydraulics, 5 roller track frames and a decent looking undercarriage).

@neil - As always, you are a wealth of information. I agree, it's probably was not the best tool for job...just wondering for the money if it's worth saving for any purpose other than parts. I hate seeing old yellow iron go to the torch.

Thanks to everyone else for the feedback

I'll put out an update once I go see it.

Nick

Ten-4, I could use some parts off of it too but dont need the whole rig.

Hi all I have a picture of the blade which Trackson call it AGH4 ANGLEGRADER 
I do have the mounting fittings on my ht4 but the blade etc where long gone when I bought the ht4.
Cheers Wayne.