EonStor A16E-G2130-4 Installation and Hardware Reference Manual
Step 3-1. Make sure the PSU handle is in the down position so that you can grab the edge of the cooling fan assembly.
Step 3-2. Use your thumb and middle fingers to seize the cooling assembly, your thumb by the upper edge of the fan guard and your middle finger at the hemispheric indent.
Step 3-3 Tilt the fan a little bit and remove the fan assembly with a precisely vertical motion.
