Air operated stairs not working.
Hi all. Our air operated stairs inside the door to our RV won’t go up flat to make the floor flat. They were not operating when we bought the RV. Sometimes they go about half way but basically they’re...
Forum Discussion
This is not going to be easy. Looking at the sticker from the side of the box, you will see the four ports, 11 and 14, 21 and 22. These are the ports with the red and black hoses plugged in.
We will have to understand the diagram first, and then also identify which hose goes to which port.
Looking at the diagram, the zig-zag thing on the bottom is a standard symbol for a spring that forces a slide to go up or down when you operate the black switch on the dash. The switch is in the diagram up at the top. It is at the end opposite from the spring.
In each of the two diagrams, you have to imagine a rectangular block that slides up and down when the switch is changed from up to down, and vice-versa.
Each of the blocks has two arrows that slide up and down with the block. Each of the arrows is a path for air flow and as the block is moved up or down, the path of the arrows changes.
Now you have to visualize air flowing from the ports, and through the arrows, to the arrow point. At the pointed end of the arrow, the air can either flow out a port, or it can be blocked due to no port at that particular position.
Again, you have to visualize the two positions that each block can have. As they are moved up and down by the selector switch, the airflow will either push the air cylinder out, or cause it to retract. It is this action that moves your step cover.
At this point, we should now understand the purpose of the spring. When the selector switch is in one position, it compresses the spring by sliding the block down. When the switch is in the opposite position, the spring is expanded by sliding the block up.
This is the basic operation of the switch. However, there is more information we need. Read this first, and let us know if you understand it all.
We will have to understand the diagram first, and then also identify which hose goes to which port.
Looking at the diagram, the zig-zag thing on the bottom is a standard symbol for a spring that forces a slide to go up or down when you operate the black switch on the dash. The switch is in the diagram up at the top. It is at the end opposite from the spring.
In each of the two diagrams, you have to imagine a rectangular block that slides up and down when the switch is changed from up to down, and vice-versa.
Each of the blocks has two arrows that slide up and down with the block. Each of the arrows is a path for air flow and as the block is moved up or down, the path of the arrows changes.
Now you have to visualize air flowing from the ports, and through the arrows, to the arrow point. At the pointed end of the arrow, the air can either flow out a port, or it can be blocked due to no port at that particular position.
Again, you have to visualize the two positions that each block can have. As they are moved up and down by the selector switch, the airflow will either push the air cylinder out, or cause it to retract. It is this action that moves your step cover.
At this point, we should now understand the purpose of the spring. When the selector switch is in one position, it compresses the spring by sliding the block down. When the switch is in the opposite position, the spring is expanded by sliding the block up.
This is the basic operation of the switch. However, there is more information we need. Read this first, and let us know if you understand it all.
