The internal mechanism reassembled, we install the nosewheel and reinsert the axle. There is a set screw port in the nosewheel fork that locks the axle into position. I placed a SECOND set screw on top of the first to lock it into position. The position of the set screw(s) should be checked on EVERY preflight. If the set screw loosens, the axle can start to back out. This could result in the protruding axle causing the nosegear fork to hang up on the guides inside the nose of the plane and therefore not fall down into position. A messy short-field landing would then ensue.