ih 990 9ft mower

Anonymous-0

Well-known Member
i tried using the bolts instead of the rivets on the knife sections but the boltheads are to high to go underneath the hold down clamps. what do i do now. RICK
 
There are two different lenghts of bolt for those. The long ones go through the extra bar for the drive head. On the rest of them,the bolts are barely long enough to have a couple of threads through the nut. If it was me,I'd get the right bolts for replacements,but since those long ones are already in there,I'd take the angle grinder and shorten them up.
 
When you go to the bolts on the sections you need a high arch hold down too. The ones back by the knife head are even taller than the others so you need two different high arch hold downs. Usually one one or two of the real tall ones.

I personally do not like the bolt on sections for hay mowing equipment because of the higher hold downs. They catch grass and do not mow as well in tough mowing conditions.
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