Wear in 880 Selectamatic Linkage

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tractorfan
Posts: 82
Joined: Wed Aug 13, 2014 8:25 am
Location: Ceredigion

Wear in 880 Selectamatic Linkage

Post by tractorfan » Sat Feb 08, 2020 10:45 am

As Spring approaches, my mind turns to doing a few jobs to the 880 and I've remembered about a particular problem in the linkage. At the tractor end of the link arms there's a pin that connects the arm to the chassis, and the receiving hole in the chassis has worn significantly and therefore there's a lot of free-play in the arm. Without having had a good look, is this part of the chassis removable for repair or does it have to repaired in-situ, and does that involve filling the worn hole with weld? Have any of you come across good/bad results of such a repair? Many thanks.

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db2d
Posts: 2174
Joined: Fri Feb 24, 2012 10:01 pm
Location: Monmouthshire

Re: Wear in 880 Selectamatic Linkage

Post by db2d » Sat Feb 08, 2020 12:36 pm

The assembly can be removed and the worn insert removed and a suitable new one welded back in.

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ollek
Posts: 3926
Joined: Tue Apr 10, 2012 1:20 pm
Location: South West Finland

Re: Wear in 880 Selectamatic Linkage

Post by ollek » Sat Feb 08, 2020 12:43 pm

The connection brackets for the lower links are not not a part of the chassies (frame) and they are bolted to the rear axle, and can be removed. Please see the following link https://partstore.caseih.com/us/parts-s ... 85ar664615 Ref number 48 is one of the brackets. The following link is for a 995 and gives a better picture of the brsckets https://partstore.caseih.com/us/parts-s ... 1ar1305628

tomryall
Posts: 155
Joined: Sun Jun 03, 2007 4:53 am
Location: canada

Re: Wear in 880 Selectamatic Linkage

Post by tomryall » Sun Feb 09, 2020 6:35 pm

DB traditonally used a 7/8" pin with a lynch clip to attach the lower link arm,I have used a pin with a nut and bolt that is bolted tight on the bracket with the lynch pin holding on the arm and it works better although not original, you have to be really looking to notice . these are readily available from most parts suppliers.

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cobbadog
Posts: 740
Joined: Tue Oct 11, 2011 6:18 am
Location: beautiful Coopernook NSW. near Taree. NSW. Australia

Re: Wear in 880 Selectamatic Linkage

Post by cobbadog » Mon Feb 10, 2020 10:38 am

i think the biggest problem is the bearing has worn away and is out of round. Fitting a bolt in that situation may not take out the excessive movement. With a new bearing installed a new pin is cheap and the problem goes away.

Gard
Posts: 279
Joined: Sun Apr 06, 2008 2:25 pm
Location: Fairfax Vermont USA

Re: Wear in 880 Selectamatic Linkage

Post by Gard » Mon Feb 10, 2020 1:54 pm

I have also used a large bolt and nut, it takes out a lot of the movement. The bolt goes thru the frame on the tractor, thru the ball on the lower link with a nut holding it all on. I am sure replacing all the parts would be better but in the meantime this does help. On the other tractor, a new pin with extra washers under the lynch clip helped in reducing play. I do not have a 880 so may not be the same.

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