D722 liner needed

satellite dish

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Jul 8, 2025
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1
Oregon
Hi,
I hope nobody minds but I don't have any Kubota equipment. Instead I have a satellite dish from 1980. Why am I here, you might wonder... Well, I'm trying to resurrect my old dish. I've found that the modern parts, specifically the LNBF, which contains the actual receiving antenna (the dish is just a reflector) is (in part), a cylinder.

The LNBFs are normally adjusted for maximizing the signal strength by moving them within a slightly larger cylinder. My old dish doesn't have the right part to provide this adjustment... BUT, A cylinder liner from a Kubota D722 should be just the ticket. I've contacted a couple of shops trying to find a used liner but, not too surprising, they aren't very responsive.

So, that's why I'm here.

I'm in Western Oregon. If anyone between Portland and the central coast can help me out I would be very grateful. Failing that I will be asking for help from farther afield.

Thank you for your indulgence!,
John
 
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satellite dish

New member

Equipment
None
Jul 8, 2025
2
0
1
Oregon
Strange.

What are the critical dimensions of the part you need? (ID, OD, length)
The only critical dimension is the ID. Normally, according to the seller of the LNBF, they are typically installed in a cylinder with an ID of 68 mm. The wall thickness just needs to be enough for set screws to hold the LNBF in place. In the attached picture is a paper pattern for plasma cutting half inch steel. The cylinder liner will be epoxied into the center hole and I can make the center hole whatever size I need. I don't know what exact length I'll need but I c IMG_20250709_112746.jpg an cut it to whatever. The LNBF is perche IMG_20250709_112746.jpg d sideways in the picture. The section with a scale marked on it is 3 inches long and about 66 mm OD. It is the part that goes inside the 67mm Kubota D722 cylinder liner

Thank you for responding.
 

North Idaho Wolfman

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I made a post and it got lost in the cyber world.

They are not being rude not getting back to you, as used liners are not removed from the engine intact, they are cut out.

Here are the best prices I could find on one liner.