The maneuver marks the first time Dextre replaces defective equipment on the Station.

FORBES: Canadian Space Robot Makes Repairs on International Space Station

Adding to the level of difficulty was the fuel hose itself, which adds additional forces that tend to pull Dextre's hands.

ENGADGET: Canada's Dextre robot refuels faux satellite from the ISS in first-of-a-kind test

For RRM, NASA's Goddard Space Flight Center designed a module simulating a satellite, as well as custom power tools for Dextre.

ENGADGET: Canada's Dextre robot refuels faux satellite from the ISS in first-of-a-kind test

Prior to Dextre being on board the station, this task would have had to be performed by an astronaut on a space walk.

FORBES: Canadian Space Robot Makes Repairs on International Space Station

The specialized tools built for the job allowed Dextre to seal the connections between the tool and the fuel valve to eliminate the possibility of leaks.

ENGADGET: Canada's Dextre robot refuels faux satellite from the ISS in first-of-a-kind test

Since RRM operations began in 2011, Dextre has performed three series of tests to show how a robot could service satellites, which were designed never to be opened in space.

ENGADGET: Canada's Dextre robot refuels faux satellite from the ISS in first-of-a-kind test

In this latest set of operations, Dextre removed two safety caps, cut through two sets of thin retaining wires, and finally transferred a small quantity of liquid ethanol into the washing machine-sized module.

ENGADGET: Canada's Dextre robot refuels faux satellite from the ISS in first-of-a-kind test