This mower will not hold a catcher and the spring is not providing any real tension. I have changed springs on victas before where you just punch the rod out and simply change the spring. I can't see how you do this on this particular mower. For a start the handle brackets are in the way of what looks like the rod that carries the spring. Not even sure if the spring has just come loose or the spring actually needs to be replaced. 2nd photo is with catcher flap up. [Linked Image]
[Linked Image]
[Linked Image]