This part of the guide details how to get through the hatches in The Cistern using the wheels.
Three Wheel Puzzle
Your goal here is to unjam the left hatch.
- Hint: Move the tank hanging from the beam.
The far left wheel will only open the right hatch for now and will move out platforms for you. The left one is jammed, so you’re going to have to fix it.
Next, turn the middle wheel to the left to move the tank a little to the left so that you can jump on it to get over to the right hatch.
Head over to the right hatch and crawl through the tunnel. Take the first left you see then another left. Move the item stuck in the chain around to snap it off. This will unjam it. Then, open it up and head back to the wheels.
From here, make sure the platforms are back in the wall first by turning the far left wheel, then use the middle wheel to swing the tank towards the slot in the wall that shoots upward.
Then, use the far right wheel to move it all the way up and quickly rush to the left wheel and turn it so the platforms come back out. This way, it’ll land on the platform.
Now, head back to that first tunnel and crawl through. Take a right, then left, following the green light. Then, take the first left you see until you’re right by the hole where the top of the tank is. Slowly make your way across it.