Could be the Starter or the Transmission
If your tractor cannot start, check your safety switches.
It could be a dead battery.
i might be wrong but it could be the 'bendex'. this is the part of the starter motor that disengages it after the engine turns on. it might not be fully disengaged from the previous trip. sometimes all that is needed to get it to go is to rock the car foreward or back a little. hope that helps.
It's sounds like your low on freon.
i need help with my car
solenoid or relay switch
Dead battery? try jumping it off. bad starter solenoid? bad starter?
Answer 1 - Vehicle Will Start When "Jumped"There could be several causes, but based on "...clicks once won't start starts when jumped.." suggests that there is something wrong within the cables or terminal clamps or connectors [corrosion inside that can't be observed] between the battery and solenoid, OR possibly a defective solenoid.
because it must be the batteries might be working
Typically a charger is not meant ot "jump start" and engine. It provides a slow, regulated charge to the battery. A car battery or fully charged battery will typically provide enough pwoer to jump start your tractor. I recommend charging your battery for a number of hours (or overnight) till completely recharged. If the tractor will no start without a jump, your battery may be in need of replacement.
clean the battery terminals with baking soda and water. them jump it
jump start the car and get a new battery and if it isn't the battery it could be the alternator or both, but try a new battery first