Instructions on removing cowl. 22N

Hi velo gang. My windshield sprayer died..more like it was empty, i filled it a few days later and it wont spray. I can hear the sprayer motor, but nothing. Of course i tried clearing the nozzle and the tip of the plastic i used snapped off in the nozzle. 😖 Im have trouble finding instructions on line on how to remove the cowl,so i can replace the nozzles.

The other sprayer isn't working either...is there a pump or something that could be colgged as well?

Any info will be helpful. Im a pretty confident female diyer