CKline, looking closer at your photo it looks like you do have the spring in place, it could be just that gear that is out of place that is causing the trouble. Any ways ,hope the pics help.The camera is a pretty good one for it cost, they are a bit shaky and the focusing is a bit of a challenge. My rear standard really moves around a lot ,so be careful with the focusing cloth pulling on the standard, but I have had good luck with mine once aware of it short comings.
Mike