To unlock the “Master Mechanic Maintainance” achievement / trophy in The Station, you need to repair the Maintainance Robot in the Maintainance area. First youy need to unload the right crate racks on the big wall to get to the two componoents needed to repair the robot. Look at the manifest display to find the crates with “Synapsis Fuse 35 in” and “E40 Voltage Regulator” inside. To find the functioning Synapsis Fuse, use the magnetic tool next to the robot. The right E40 Regulator can be found by turning off the light in the room and choosing the ones that glow.
Onc you place both components into the maintainance robot, you will unlock the “Master Mechanic – Maintainance” achievement / trophy