Hello! I’m new here… I set up my new old 4 column stage from Zippo a few days ago. It’s already hanging in the ropes. Now we have problems getting it right in motion. Here are some data: Z03 AMG or ZO3 AMG Year 1970 There is a push button for lifting, which is interrupted by a limit switch in column 1. And then there is a lever for lowering, which opens a hydraulic valve and holds a push button at the same time. I can’t explain its function yet. 1. Does anyone know if the engine is running while lowering or just lifting? 2. Is there a schematic somewhere? Our problem is that some cables have been solved for transport purposes and we don’t know how they belong together. Lifting we once got there, so it is now hanging halfway up. Lowering doesn’t work so far. Can someone help me? Thanks and greetings.