HP Z820 HP Z420, Z620, and Z820 Workstation Series User Guide - Page 47
Routine Care, General cleaning safety precautions, Cleaning the chassis
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7 Routine Care General cleaning safety precautions ● Never use solvents or flammable solutions to clean the computer. ● Never immerse any component in water or cleaning solutions; apply any liquids to a clean cloth and then use the cloth on the component. ● Always unplug the computer before cleaning the keyboard, mouse, or air vents. ● Always disconnect the keyboard before cleaning it. ● Wear safety glasses equipped with side shields when cleaning the keyboard. Cleaning the chassis ● Follow the safety precautions in the Maintenance and Service Guide for your workstation before cleaning the computer. ● To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab. ● For stronger stains, use a mild dish washing liquid diluted with water. Rinse well by wiping it with a cloth or swab dampened with clear water. ● For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is required because the alcohol evaporates quickly and does not leave a residue. ● After cleaning, always wipe the computer with a clean, lint-free cloth. ● Occasionally, clean the air vents on the computer. Lint and other foreign matter can block the vents and limit the airflow. General cleaning safety precautions 39