locking steering column

[WQ59B]

Actually- quite clear.
So… is the correct procedure to turn the key, then turn the wheel until the lock clicks in & the shaft is locked? Then you can remove the key? Is the 'correct' position 'straight ahead'?

My '40 has the key in place, it turns but doesn't want to remove… but the wheel isn't locked. Either the pin is frozen 'up' or I haven't turned the wheel to the correct position for the pin to drop (haven't driven it yet, haven't run the wheel a full revolution either).