“Step 1
Sit facing the lat pulldown machine with your knees locked under the roller pads. Grip the pulldown bar with your hands slightly wider than shoulder-width apart and palms facing forward. Lean back slightly from the waist keeping your back straight. (Not sure how much weight to use?)
Step 2
Inhale and then exhale as you pull the bar down in front of your face until it reaches your upper chest.
Step 3
Inhale as you return to the starting position.” SOURCE