Maybe. Maybe. You dont know if it will unscrew... the old bolts are not stainless and usually after 3 or 4 years there is too much corrosion to get the oldies out. SO, we brought the tool rather than risk it. I would be very surprised if those things would unscrew.
New stainless were put in. Going up there another time with a battery powered angle grinder and trying to cut off the old bolts without leaving obvious scars seemed difficult at best. However, it sounds like you have a lot of experience with this... why don't you be that someone who fixes it.
By M Sprague Administrator From: New England Nov 13, 2013
Nice. Yup, I have some experience. I have never had to use a grinder personally though. The few we weren't able to break off and set or pull in our area (some 1/2" glue-ins that were placed incorrectly or were not stainless and placed in wet conditions)were taken care of by a guy who has one, thankfully.
Kimmmmyyyy J. and I had to snip the old chain out cus it just wasn't right... 1/2 inch bolts worth 10,000 pounds down to a $1.29 coldshut rated to 900 pds when brand new (years ago). The only way to upgrade the system to at least two rings worth a lot more than that was to remove the old and start over again. Hopefully the new stuff will last a very long time.