Stevens 520A Shotgun

My friend has a Stevens 520A shotgun with a broken firing pin. He took the thing apart years ago. Now he bought a new friing pin and can not recall how to put it back together. I have never seen the inside of one of these things before and can not determine how to put the little spring that holds the shell carrier back in place. Does anyone know where I can find information on putting this shotgun back together? Thanks, Jim

Hi and welcome to the forums:)

Here is an excerpt from "US Shotguns TM 9-285":
http://i44.tinypic.com/okz6n8.jpg

FYI, I have uploaded a copy of the manual (21.9mb .pdf); you can download it here: http://rapidshare.com/files/240096428/US_Shotguns_TM_9-285.pdf.html

Regards,
Greg

Thanks for the warm welcome. This seems like a very friendly and helpful group. I hope someday I know enough to help someone. As to the shotgun, I did exactly as the link said and things are still not working out right. The spring may be bent and may have been bent before I ever saw the shotgun. I will study the link that you provided. Thanks. Jim