Leveling deck on Husqvarna

I just noticed the front of the deck is sitting lower than the rear of the deck. I need to get it level again. Should I do that by adjusting the nuts on that front adjuster to draw the front of the deck up? I'm assuming that's how it's done. But I'm not sure why the deck is unlevel. I don't see anything bent or damaged.
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Leveling deck on Husqvarna