917 Hydro Runs but won't move.
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=207822
Printed Date: 23 Aug 2025 at 4:37pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 917 Hydro Runs but won't move.
Posted By: Micrometeor
Subject: 917 Hydro Runs but won't move.
Date Posted: 16 Aug 2025 at 10:40am
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Different battery fixed this. Oops! WAY TO GO ON MY FIRST POST. Engine running fine now but all the Hydro stuff doesn't work. Any issues with the hydro that I should know about?
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Replies:
Posted By: Mikez
Date Posted: 17 Aug 2025 at 11:43pm
Posted By: AC720Man
Date Posted: 18 Aug 2025 at 9:51pm
Make sure the belt running the hydro is in good condition and adjusted properly. Owners manual explains the proper set up. Have you checked the oil in the rear? Pipe thread plug on the rear of the tractor. Filter been changed lately? I had an issue one time, it slowed in speed and then stopped. Fluid level was good, installed a new filter and that corrected the problem. If you haven’t changed the fluid and filter I would recommend that first.
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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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Posted By: HudCo
Date Posted: 19 Aug 2025 at 3:07pm
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make sure the disconect lever pins are not on or stuck
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Posted By: AC720Man
Date Posted: 19 Aug 2025 at 8:31pm
Mike that is an excellent point, I forgot to mention the plate on the transmission for the hydro. As Mike pointed it out, there are 2 pins under a spring loaded plate on top of the hydro. When pushed down this allows the tractor to be safely moved in case the engine isn’t running and or the tractor needs repair. By pulling up on the plate it returns the hydro to normal operation. If either of those pins are stuck and not sticking up the hydro will not move the tractor.
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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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Posted By: Micrometeor
Date Posted: 22 Aug 2025 at 10:20am
I just bought this in this condition basically for the motor.
But the rear pin is stuck in below the big nut so-o-o. If I could fix it I may just put a motor back in it. This is a nice tractor.
I have a snow blower, tiller, and blade, but no mower deck.
So if I can get a movwer deck I'm all set.Does anyone know of one near NÈIowa
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Posted By: AC720Man
Date Posted: 22 Aug 2025 at 9:19pm
I was given a 917 a few years ago, I already have one but you can’t beat free! Anyway, I soaked those 2 pins with Kroil to loosen them up. The tractor had been sitting outside for a few years. Once I got the engine running the hydro worked fine.
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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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