Garden Tractors - 712 H Hydro Not Working

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712 H Hydro Not Working

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Garden Tractors
Forum Description: A great place to discuss the Simplicity and Allis Chalmers Garden Models
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=180022
Printed Date: 23 Nov 2024 at 8:46pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 712 H Hydro Not Working

Posted By: rhunt12312
Subject: 712 H Hydro Not Working
Date 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

Replies:

Posted By: fleeter allis fan
Date 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.

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I'm a man...and I can change...if I have to... I guess.
'44 B, '46 WF, '49 G, 810GT, 916H, 620

Posted By: Gary
Date Posted: 23 Apr 2021 at 2:16pm

Check drive belt for tension and slippage.

G

Posted By: DaveBsACs
Date 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.

Posted By: DaveWisc.
Date Posted: 01 May 2021 at 8:15am

I have a junk 712 for parts

Posted By: Steve in NJ
Date 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

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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife

Posted By: albrown915
Date 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

Posted By: Steve in NJ
Date 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

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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife