Universal Robots UR5 Service Manual page 15

4. Recommended Inspection Activities
Cleaning the Robot in Relation to COVID
You can wipe away any dust/dirt/oil observed on the robot arm using a cloth and one of the
following cleaning agents: Water, Isopropyl alcohol, 10% Ethanol alcohol or 10% Naphtha. In rare
cases, very small amounts of grease can be visible from the joint. This does not affect the
function, use, or lifetime of the joint.
Due to the added focus on cleaning your robot, Universal Robots recommends cleaning with 70%
isopropyl alcohol (rubbing alcohol).
Service Manual 9 UR5