I lubricated my Lionel 45N Gateman with WD40, all moving parts. The gateman comes out of the shack and the light lights up. After the train passes, the light goes off, but the gateman does not go back in the shack and the door does not close. All parts underneath are in working order. What can I do to make the gateman go back into the shack and have the door close?
Thanks.