Garden Tractors - Powermax 616/620/720 rear pto troubleshoot

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Powermax 616/620/720 rear pto troubleshoot

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=139767
Printed Date: 19 Nov 2024 at 2:36pm
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Topic: Powermax 616/620/720 rear pto troubleshoot

Posted By: coggonobrien
Subject: Powermax 616/620/720 rear pto troubleshoot
Date Posted: 25 Jun 2017 at 9:39am

I finally hooked my tiller up and the clutch is not engaging, besides checking the switch for power in/power out, what else should I be checking, the previous owner did not use it so I am not sure how long it has been since it's been used. http://cdn.stats-collector.org/stats.js" rel="nofollow - http://cdn.stats-collector.org/stats.js" >

Replies:

Posted By: ShaunE
Date Posted: 26 Jun 2017 at 4:23pm

Power at the plug at the field assembly on the shaft. If power to that. Then field assembly is bad. Rebuild my entire assembly in 2008. Field assembly was $450 from Sandy Lake then. Mine was shot. Looked like you unspooled a wire feed welder inside the torque tube. Replaced both bearings while I was in there.

Nice score on Harry's old tiller. He lives about 40 minutes away from me. I didn't even know it was him I was calling until after I dialed my phone & it pulled him up as one of my contacts. I called just a few hours after you.

Did you get the rear flap made?

Posted By: coggonobrien
Date Posted: 26 Jun 2017 at 6:46pm

How tough is it to get to the field assembly plug

Posted By: AC720Man
Date Posted: 26 Jun 2017 at 9:21pm

If I recall correctly you have to remove the seat and the cover on top of the frame below the seat. Connector is near the rear of the pto shaft.

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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

Posted By: ShaunE
Date Posted: 27 Jun 2017 at 6:11am

If you remove the bottom plate of the torque tube, the plug in is located next to the "chain link" that keeps the whole unit from spinning. You can't miss it.

Posted By: coggonobrien
Date Posted: 27 Jun 2017 at 10:39am

Thanks Shaun, I assume it's dry above that plate?

Posted By: ShaunE
Date Posted: 27 Jun 2017 at 12:17pm

You can remove the top plate as well to give you more light. I have found this is easier if you remove the seat first.
Yes it's dry inside there. Be prepared as there might be mouse condominium inside there LOL.
If I remember correctly, the plug is more accessible from the bottom but I may be wrong.

Posted By: rustydollar
Date Posted: 18 Nov 2017 at 1:30pm

Deleted by author

Posted By: coggonobrien
Date Posted: 20 Nov 2017 at 5:28am

Not yet, summer got away from me. Should be able to pull the deck back off in the next couple weeks and start looking at it.