When I got my Anchor 500CP recently I had to strip it almost immediately and when I reassembled the needle and jet, I did so with the needle in the raised position.
Once the lamp had been run, when I raised the needle it did not come through the hole but it crushed.
The same thing happened with a replacement needle.
When I fitted the last needle, I put it in the lowered position before fitting the jet and now it goes up and down fine.
Has anybody else come across this problem?