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712 H Hydro Not Working

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rhunt12312 View Drop Down
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Joined: 08 Aug 2018
Location: North Carolina
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rhunt12312 Quote  Post ReplyReply Direct Link To This Post Topic: 712 H Hydro Not Working
    Posted: 22 Apr 2021 at 12:33pm
Trying to keep my Grandfathers 1973 712H alive and kicking.

Recently parked the unit in the garage and went to use again. Engine started perfect but it will not go forward or reverse.

I have checked the tranny fluid and it appeared full and a good clean color of red.

Thanks in advance
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fleeter allis fan View Drop Down
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Joined: 05 Apr 2018
Location: Niagara Ont
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fleeter allis fan Quote  Post ReplyReply Direct Link To This Post Posted: 22 Apr 2021 at 7:04pm
My 916H has a latch on the rear end to allow it to disengage the drive so it can be rolled by hand. Not sure if you have the same thing on your 712H. It is on the top left side of the rear end. I think you pull it up to disengage and push it down to engage the drive. (I might have that backwards.) Could be your drive is disengaged. If you can push the tractor and the rear wheels turn fairly easily, you are disengaged.
I'm a man...and I can change...if I have to... I guess.
'44 B, '46 WF, '49 G, '80 Kubota L185DT, '82 IHC 384 and '60 wife.
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Gary View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Gary Quote  Post ReplyReply Direct Link To This Post Posted: 23 Apr 2021 at 2:16pm

Check drive belt for tension and slippage.

G

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DaveBsACs View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DaveBsACs Quote  Post ReplyReply Direct Link To This Post Posted: 30 Apr 2021 at 10:17pm
that one should have the two little buttons on top of hydro unit that you push down the spring loaded bracket to disengage hydro. 
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DaveWisc. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DaveWisc. Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2021 at 8:15am
I have a junk 712 for parts
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Steve in NJ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Steve in NJ Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 2021 at 5:31am
Yup! If I remember correctly, my 716H had the bracket on top of the rear. Push the handle down to disengage. As Dave mentioned pushing the two buttons in.
Steve@B&B
39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
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albrown915 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote albrown915 Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 2021 at 8:48pm
When you pull it up make sure the pins come up they’re getting sticky after all these years
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Steve in NJ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Steve in NJ Quote  Post ReplyReply Direct Link To This Post Posted: 04 May 2021 at 7:40am
Great point Alvin!  I forgot all about that little problem. My 716H, the buttons used to stilck. A little WD40 around the buttons, and working them in and out fixed the ole' button stick problem. Had a 712H that had the same problem. One button would stick...
Steve@B&B
39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
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