You should be able to borrow a steering wheel puller for a local auto supply, but they aren't very expensive to buy, either. If you decide to buy one, get a harmonic balancer puller, then you can pull both if you need to. Kal-van/Kal tools made a good balancer puller in the past that works well on steering wheels. I would advise leaving the nut on the shaft when using the puller- loosen the nut back to flush with the end of the shaft, then pull the wheel until it stops against the nut, take the nut off and the steering wheel comes off. If you haven't noticed alignment marks on the shaft and the steering wheel hub, there should be some,so you put the wheel on in the same position. If not, mark the steering wheel position in the shaft so you put the wheel back in the same location.

Harvester