Replacing a disc blade - Hay King 20-inch

[dirtrustler]

I broke one off. Now I've got to replace it - an inside blade naturally. It's 1&1/8 inch square shaft.
What do I need to know - any helpful tips are appreciated.
No one told me not to disc in a turn!
Dirtrustler

 

[bigtiller]

Your going to need a BIG air gun. I think the nut at the end of the shaft may be torqued around 700 fp.

 

[schmism]

psssstttt dont disk in a sharp turn