Looks like the cover for the spring is there, so you should be able to replace easily. Where are you? I might still have one I would be happy to send you for the cost of the postage. PM me if interested. Ordered from Sears for a full size Craftsman.
Mine had a similar problem, which is why I have the one in my toolbox. the cover was too small and the spring a little too heavy for my Galaxy benchtop model. I wound up cutting the teeth off an old hole saw that fit, cutting a spring slot in it, and using a return spring for a lawn mower to get mine going.