Can the harmonic balance come loose?

okay well lets get the balancer off first. this is how i would go about it remove the pulley from the ballancer. go to hardware store and get some some bolts that will screw in to ballancer. now that you have these screw two in to ballabcer now take a closed end wrench and put the wrench head over one of the bolts and the other part up against the other screw. now take a socket wrench to the ballancer bolt hold on to wrench and break the bolt loose. i hope this helps