990 db power steering

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Lovejoy922
Posts: 4
Joined: Fri Apr 06, 2018 11:34 pm
Location: Us

990 db power steering

Post by Lovejoy922 » Tue Sep 15, 2020 11:32 pm

so i was using my David Brown tractor today it's 990 selectamatic power steering I think it was made between 1968 and 70 it has a bucket and a backhoe and the steering just started spinning it's not locking up and I'm not sure what I'm looking for any pictures or help would be appreciated i took the steering shaft out to look at it and I can see the worm gear but it's nothing on the end of it

1952CROPMASTER
Posts: 119
Joined: Thu Dec 15, 2016 12:24 pm
Location: Canada (East)

Re: 990 db power steering

Post by 1952CROPMASTER » Wed Sep 16, 2020 2:02 am

Can you move the steering shaft up & down in the steering column?,
Sometimes the top bearings fail or gets loose then the steering shaft will travel to far & allow the 28 Ball Bearings to fall out of place,
If you send me a pm with your home email address i will send you a scanned copy off the steering box
Hope this helps you.

philedge
Posts: 368
Joined: Sun Dec 03, 2006 11:27 am
Location: Chester UK

Re: 990 db power steering

Post by philedge » Wed Sep 16, 2020 7:25 am

Theres a full service manual on selectamatic steering here- https://sites.google.com/site/deerebrow ... wn-info-ii
'66 880 Selectamatic rat.

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