Farm Equipment - Silent 620

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Silent 620

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=14408
Printed Date: 02 Feb 2025 at 10:44pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Silent 620

Posted By: DSeries4
Subject: Silent 620
Date Posted: 26 Jun 2010 at 11:01pm

Question for the 620/720 experts here. I've had it apart for the last few weeks getting the gas tank cleaned, new fuel filter, and cleaned and adjusted the carb. I put everything back together, now I can't get a sound from the starter. All lights work, and the battery has plenty of juice. Is there a blown fuse somewhere? Will the engine have to come out to access the starter (God, I hope not!). It started great before I took the fuel system apart.

I would appreciate any help! Thanks!

Replies:

Posted By: Tracy Martin TN
Date Posted: 26 Jun 2010 at 11:38pm

Have you checked the safety switches? HTH Tracy Martin

Posted By: Larry Miller
Date Posted: 26 Jun 2010 at 11:54pm

I know you have to pull the engine to get to the starter, and then it is behind the cowling. I had mine out three or four times before I found the bad winding in the starter. It ran on the bench but not under any load.

Check the ground connections first.

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I used to be young and stupid, now I am not young anymore.

Posted By: DSeries4
Date Posted: 27 Jun 2010 at 12:20am

Tracy, Where are the safety switches on it? I am not that familiar with it yet...

Posted By: Tracy Martin TN
Date Posted: 27 Jun 2010 at 8:56am

I think one on clutch pedal, or actuated by pedal, could be at tranny. I know there is one on hydro levers, must be in neutral to start.Pretty sure all pto clutches must be off also.HTH Tracy Martin

Posted By: norm [ind]
Date Posted: 27 Jun 2010 at 9:09am

by pass all switches go directly to staRTer with a jumper if starter workks problem then is safety switches will help solve your problems and elimate a lot of work ten look for problem 40+ yrs. under my belt

Posted By: norm [ind]
Date Posted: 27 Jun 2010 at 9:10am

Posted By: DSeries4
Date Posted: 28 Jun 2010 at 7:16pm

Problem solved - clean the connections on the ignition switch!

Posted By: DREAM
Date Posted: 28 Jun 2010 at 9:39pm

Glad you got that D series. I was gonna join in. Have worked on a few of the Simplicity models of those. Glad you didn't have to get the starter off. Engine does have to come out. I would recommend replacing/rebuilding anything else you thought might EVER wear out in that area while you had it out.LOL! It's not as bad as working on some Toros, but it still sucks!