On the top side, where the angle iron goes across the bearing, there will be a 3rd hole in the angle iron. Grease zerk should be recessed in that hole. Newer models they put a short pipe bib in and put the zerk up higher so it didnt fill with dirt.
Re: Fixing a Loose/Worn-out Disk Harrow - Have some Question in reply to Paul, 04-19-2013 11:35:52
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Yep add zerks if not already present. No use using high dollar grease either. Use the cheapest stuff you can find there and use it often. As they get more sloppy the expensive grease disappears just as fast as the cheap stuff since it is not sealed in anyway.
Dad had on ole disk that was well worn in those bearings. The wear really does not hurt anything at all as long as they internal hub can not work it ways out of the outer hub.
Tip: We always saved our broken blades and cut washers out of those in order to make washers of end of axle shafts if needed to tighten those up.
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