If you have a belt driven blade set up either the belt has jammed the pulley because it is worn out or the belt is broken. It could also be that there is a problem with the pulley's, but this is rare.
I agree that the belt is the most likely problem. But there may also be a problem with the cable or linkage that engages the belt. If your belt looks good then have someone try to engage them with the mower not running and see if everything looks like it is moving properly to stretch the belt and engage it.
If this is a push mower then the spline on the blade or crankshaft is probably stripped.
counterclockwise
A Razor, a lawn mower, and a rollerblade all include a blade. A razor has a blade. A lawnmower has a blade A rollerblade has no actual blade but it has the word blade in its name.
The blade
If your push lawn mower is not working as well as it used to work, you might be thinking about replacing it. Before you purchase a new push lawn mower, check your current mower's blade. Over time, lawn mower blades grow dull and no longer cut grass as effectively. If you take your lawn mower blade to a hardware store that offers a blade sharpening service, you can usually get the blade resharpened for a small fee. With a newly sharpened blade, your old lawn mower could be working just like new.
It can fall of your mower if you haven't screwed it on tight enough for it to stay
The manufacturers instructions should include the blade size for your weed eater lawn mower.
Most lawn mowers have safety features that will turn the engine off when there is damage to the blade assembly. That is very likely the problem.
Zero turn lawn mowers can be either a riding lawn mower or a push lawn mower, depending on you're preference. Push lawn mowers start around three hundred dollars.
well it all deepens how broken it is if its really broken you will have to get a new one but if they is something wrong with the blade try to get a old dust pan brush and turn the lawn mower over and give it a brush or buy a new blade on the internet or on ebay
if its a rider you remove the deck, turn it over, clamp the old blade in place, & get a large wrench to fit the nut holding on the blade(s). if you have one, use an impact wrench. remove old blade(s) after you remove the nut. take off old blade and put on new one. replace nut and reinstall the deck. if its a pusher just turn mower on its side and use above instructions.hope this helped and good luck
no
The rotary blade lawn mower