Hagen Brothers farms,Goodrich ND | The IH sieve system depends on those bushings being at 75% or better to prevent flexing and cracking of the sieves and shoe/chaffer rails.
Like a fellow IH combine owner said" changing those bushings often(2000 hrs) is like changing a baby, If you don't do it, things get nasty in a hurry".
Attached is pictures of bushings I changed that visually looked perfect, but in reality had not more than 50% contact of metal and rubber parts.
The shiny parts are where there was no support, only the dull gray portions were still doing the job, only 50% or less.
Edited by Jon Hagen 7/1/2008 23:41
 (Bad bushing.JPG)
 (Bad bushing, inner sleeve wear.JPG)
Attachments
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 Bad bushing.JPG (30KB - 59 downloads)
Bad bushing, inner sleeve wear.JPG (16KB - 62 downloads)
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can you weld the screens in combines and they stay
