Sal!
It's the timing and agile fingers that are necessary here.
You have to time:
1. Pull of the earring and watch to get the correct position of the kettle.
2. Pull earring again when the correct position of the kettle is reached to stop the lowering of the kettle.
On this part, I watched the first gear-knob in the background to show up completely.
3. The straight run down the ramp to have the small swing door open. That is fastest run down the ramp.
4. The large door at the back of the pulley be open.
I do have a saved game here.