B2660 snow blower broke the right auger shear pin. Finally found the part stuck in the shaft, I only see about 1/4 of it, the auger will not slide over any more. This broke right out of the shed, I did not have an auger shear pin, as I have never broken one, I tried to continue with just the left side functioning, but then the fan pin broke, and I stopped.
What happened and how do I fix this?
Pin
https://drive.google.com/file/d/0BwGD1kP7ehB-OXFkYmxhTFBjWTA/view?usp=drivesdk
Auger
https://drive.google.com/file/d/0BwGD1kP7ehB-ZUNwbWszTXZyVVk/view?usp=drivesdk
Snowblower
https://drive.google.com/file/d/0BwGD1kP7ehB-YllzRFpHd2lFQjg/view?usp=drivesdk
What happened and how do I fix this?

Pin
https://drive.google.com/file/d/0BwGD1kP7ehB-OXFkYmxhTFBjWTA/view?usp=drivesdk
Auger
https://drive.google.com/file/d/0BwGD1kP7ehB-ZUNwbWszTXZyVVk/view?usp=drivesdk
Snowblower
https://drive.google.com/file/d/0BwGD1kP7ehB-YllzRFpHd2lFQjg/view?usp=drivesdk