Adjust the cable as high as possible then grab the ends of the rope with both hands facing inwards and take a step back from the machine. Hinge from the hips to lean slightly forward.
Start by extending the elbows, tensing your triceps until they are almost fully extended. Then, slowly bend the elbows back to approximately a 90 degree bend. As you extend your elbows your hands should separate further away from one another. Keep your shoulders back and down throughout. Tense your core to keep your torso stable and repeat for the desired amount of repetitions.
Avoid flaring out your elbows too wide or using your torso to pull the weight downwards.