I keep an extra set of cleaned up dust covers, those big washers, and the nut, along with as set of sharp blades ready when I service the deck each fall or spring (when I get to it). Those dust covers do take some "hits" now and then.
Sigarms split in the dust cover is allowing the grease to ooze out ... best I can tell. And he probably has no other damage.
Cheers,
Mike
Why is grease oozing out of it??
I thought that I could see where the mainshaft was broken, oh well anyway the dust covers on my deck have holes from factory and I assume they are to let excess grease escape.