A mower may start to steer hard from many things:
-Flat/soft tires
-Lack of grease on the front axle or front axle joints
-Lack of grease on the rack/pinion gears
-Lack of grease on the steering wheel bearing
-Crack in the axle itself, allowing the corners of the axle to move
I have had all of these happen to me and they are relatively quick to rule out.
Pull start only
because it is a worthless piece of junk!
Turn your blades off.
Check the battery for starters
Yes, you can use a 12-volt battery charger on a John Deere lawn mower, provided the mower is equipped with a 12-volt battery. Ensure the charger is compatible with the battery type (lead-acid, AGM, etc.) and follow the manufacturer's instructions for charging. It's important to connect the charger correctly, observing the positive and negative terminals, to avoid any damage. Always disconnect the charger before attempting to start the mower.
It depends on if you bought a pull start mower or a power mower. The pull start mower will have a handle you have to pull hard to start it. The power mower should have a button that simply turns it on. Make sure there is gas in the pull start mower.
Check your stator or your charging system.
There are several reasons why your mower will not start. There could be an obstruction in the blade, a petrol mower could be low on petrol or the fuse could have blown in an electric mower.
It may be set to run too richly, or perhaps it's trying to "vapor lock". Have the engine tuned up by a professional to start with, then see if the problem still occurs.
There is a nice Yellow Knob on the right hand side of steering wheel when you pull it out your PTO(Power Take Off) part that makes blades engage when hooked up right. To shut blades off just push know back in. Hopefully that helps and good luck with the mower. I have had mine 10 years it has never once had an issue.
The symptoms of a bad lawn mower battery include difficulty starting the mower, slow cranking when trying to start the engine, and the need to jump-start the mower frequently.
It wasn't so easy but after about 5 hours it was done. You have to drop the mower unit and remove it from the tractor to start. I hope we get another 10-12 years out of the new ones.