Double disk furrow openers McCormick

pjbofmn · Nov 26, 2017

I just bought a McCormick 450A
seems to be 58 as far as I can
tell from the manual. The
double disk openers. How loose
can they be? When do you
replaced them and how? How do
they can apart and go back
together. They have riveted on
hibs..

DeltaRed · Nov 26, 2017

To remove the disk , remove the small plug at the disk's center. Take a long(9") 3/8 socket extension and insert into the square recess inside. It could be either right,or left hand threads,depending on which side.A little 'wiggle' is normal for those old iron bearings. The rivets should be snug on the hub.

pjbofmn · Nov 26, 2017

Thanks for your knowledge

JMS/.MN · Nov 26, 2017

The left hand threaded bolt should be on the left disc. Picture it this way- as the opener rolls forward, the forward motion will keep the bolt tight. If it were opposite, it would tend to unscrew.

Leroy · Nov 26, 2017

Actually that bearing if any wiggle is wore out. They are a sealed bearing and depending on where you get them from $2 each to 30some$ a piece.

Leroy · Nov 26, 2017

Is your planter rope lift or cylinder lift. Rope lift they are up to a $1,500 planter

Leroy · Nov 26, 2017

To change the bearings you have to remove rivets, just use bolts to put back together. I forget the size.

pjbofmn · Nov 26, 2017

Rope trip

Double disk furrow openers McCormick

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