stuck spindle nuts

[q man]

We have a cub GT 3200 lawn tractor with a 60" #291 mower deck. Here is the problem. I have trouble breaking the mower spindle nuts loose when it is time to sharpen the blades. The nuts are tightened by using a half inch breaker bar and socket. So there isn't a lot of tourque put on the nuts like would result when a impack wrench is used. The blades are sharpened once a month during the mowing season. It seems that they get tighter with use. Are any of you having this problem and any ideas on how to fix the problem?

 

[shvl73]

I've been using a 3/8" impact for years and it works well. If the deck is off, you can place your foot against the blade and use a wrench, tapping it with a hammer while you hold it squarely on the nut.

 

[micman32]

I have had that problem too. I put some never sieze on the spindles before I re-install the nuts.

 

[MrJimi]

Any good 1/2 impact would have them off in seconds.
I'm too old to do stuff the hard way any longer.

 

[JSharp]

Others have already said it but to repeat - A 1/2" drive impact and use anti-seize when you re-install.