4-Tap the key and tap the metal cupboard.
4-Take the shovel inside.
5-Tap the wrench and take the red valve.
6-Take the voltage poster.
7-Tap the red valve in your inventory, fix it on the shaft and rotate.
8-Tap the belt and tap the gears.
9-Tap the voltage screen.
Tap the right arrow.
13-Remove the dust.
14-Tap the key in your inventory and insert in key hole, tap to unlock.
15-Replace the red valve and tap to rotate.
Tap right arrow.