Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

I hit a 3/4" lot marking pipe that was sticking out of the ground with my Ariens LM21 Intek mower.  Mower came to a dead stop and the blade was nicked bad.  I ground the blade and reinstalled it.  The mower works but it vibrates a bit more now.  I really didn't get the blade perfectly balanced after grinding it. 

My question is - How can I tell if I damaged the crankshaft?  Would the mower even work?

Thanks Denis.  I ordered one from Amazon.