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D15 series II with shuttle (pics)
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elec View Drop Down
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Joined: 23 Nov 2020
Location: mi
Points: 91 		Post Options Post Options   Thanks (0) Thanks(0)   Quote elec Quote  Post ReplyReply Direct Link To This Post Topic: D15 series II with shuttle (pics)
    Posted: 03 Oct 2026 at 9:25pm
Just bought a d15 series II. Trying to figure out if the shuttle controlled by the foot pedal is original or after market. I've never seen anything like it before, but parts of it look original and it's hooked to power steering pump. Is it possible it was custom built from the factory? Would like to find info on it so I can fix/adjust it. Thank you

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Joined: 12 Sep 2009
Points: 23582 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 03 Oct 2026 at 10:57pm
Looks OEM to me. Not standard equipment, but an OPTION. I have no idea how to adjust. WHY do you think it needs adjusting ??
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DiyDave View Drop Down
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Location: Gambrills, MD
Points: 56080 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 04 Oct 2026 at 4:15am
It might be something someone took off of a construction tractor, and installed onto the ag tractor...Wink
Source: Babylon Bee. Sponsored by BRAWNDO, its got what you need!
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elec View Drop Down
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Joined: 23 Nov 2020
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Points: 91 		Post Options Post Options   Thanks (0) Thanks(0)   Quote elec Quote  Post ReplyReply Direct Link To This Post Posted: 04 Oct 2026 at 10:09am
Reason I would like to know how to adjust/fix is because it seems to be too hard to operate by foot. I'm guessing that's why someone manufactured a lever to bypass. If anyone has any info on it would be appreciated.
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Joined: 23 Nov 2020
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Points: 91 		Post Options Post Options   Thanks (0) Thanks(0)   Quote elec Quote  Post ReplyReply Direct Link To This Post Posted: 04 Oct 2026 at 10:13am
Also wondering, it has a PTO, would PTO speed be correct due to shuttle. Has internal hydrolics with snap coupler/power booster and no reverse on shifting lever so appears to be factory. Have more pictures if helpful.
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Joined: 11 Sep 2009
Location: Day County SD
Points: 1323 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Nathan (SD) Quote  Post ReplyReply Direct Link To This Post Posted: 04 Oct 2026 at 6:29pm
When it is running, does the pedal have back pressure resistance? Or is it detents like a hydraulic valve?
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steve(ill) View Drop Down
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Points: 93313 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 04 Oct 2026 at 6:45pm
pto speed should vary with engine speed... trans and shuttle should have no effect..
Like them all, but love the "B"s.
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Calvin Schmidt View Drop Down
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Joined: 11 Sep 2009
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Points: 4591 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Calvin Schmidt Quote  Post ReplyReply Direct Link To This Post Posted: 10 hours 43 minutes ago at 9:33am
PTO will be non standard 780 rpm with a shuttle. I made a rocker pedal for the shuttle on my I-60 backhoe years ago. It was very hard to snap it all the way in. My current I600 has the factory option two pedal system. push one pedal for forward and the other pedal for reverse. When I press one pedal down, the other pedal returns. Took a bit to get use to but works great.
Nothing is impossible if it is properly financed
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elec View Drop Down
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Points: 91 		Post Options Post Options   Thanks (0) Thanks(0)   Quote elec Quote  Post ReplyReply Direct Link To This Post Posted: 7 hours 30 minutes ago at 12:46pm
Calvin, Thank you for response on PTO, that's the same info I found online but wasn't sure if it was true so I'm glad to get confirmation.
I put oil in power steering and the system started to work but the bushings are so worn/out-of-adjustment that you can hardly get it to go in reverse without using makeshift handle. Is there a way to feather it so it does not engage so quickly when using it as a loader tractor?
I would love to see pictures of how you did a two pedal system.
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