Follow the steps to straighten front Lawn Mower wheels on Push Lawn Mowers, 1. Try to dig in the craw bar from behind the wheel on both sides 2. While bending the wheel, hit the axle as straight as possible. 3. Upon bending wheels back into position, it might be loose, because the clips on the side of the mower that holds the axle in place will be out of position. 4. So, take a metal rod and bend it in shape.