Here is a quick checklist that outlines the proper technique for the lat pulldown: Grasp the handles slightly wider than shoulder-width with a closed, overhand grip. Keep your torso and spine in a neutral position with a slight backward lean (approximately 10-15o backward should do the trick).
Does grip matter on lat pulldown?
No matter which grip width a pronated hand position will create more muscle activity in the lats than a supinated grip will.
Should I do wide and close grip lat pulldown?
Conclusion. Even though a wide grip gets a little more lat activation, the close grip lat pulldown puts your arms in a stronger position, and you can generally pull more weight. So it's a great addition to your back workout. In fact, you could include both grip widths in your workout.