Thanks for the tip. :thumbsup:
We change blades on two Tiger Cats often times 3 times a day when we are running flat out mid Summer. There is NO need to get under it to change the blades.
All you need is a cheap floor jack and a cordless impact wrench.
Take the impact and remove the nuts from the top and the blades will drop out. Then change the blades and put them back on the bolts. Then stick the bolts through one at the time and start the nuts on the bolts. then tighten the bolts with the impact wrench again. You can change the blades on one in under 5 minutes.
Very Very rarely do you have to get under it to put a back up on them. IF you have to then take a 15/16" wrench and put it on the bolt head from underneath normally with the angle facing up. wedge it on the edge of the deck. We have had to do this a couple of times a year normally after the mower hit something and caused the blade to over tighten. When that happened we had to take a breaker bar with a cheater handle to break the bolt loose.
On two different occasions over the years we had a nut that would gauld on the threads. In that instance you take a 4 1/2" side grinder with a thin blade on it and cut the nut off and drop the bolt out and put a new bold in it. You are still running in under 30 minutes if you carry the tools and parts with you.