Movement With And Without Drive Power - Universal Robots UR10/CB3 User Manual

1.5.9. Movement With and Without Drive Power

In the unlikely event of an emergency situation, where one or more robot joints need to be moved
and robot power is either not possible or not wanted, there are two different ways to force
movements of the robot joints: Note: In a service situation, the brake on the joints can be
released without connected power.
1. Forced back-driving: Force a joint to move by pushing or pulling the robot arm hard. Each
joint brake has a friction clutch which enables movement during high forced torque.
2. Manual brake release: Remove the joint cover by removing the few M3 screws that fix it.
Release the brake by pushing the plunger on the small electromagnet as shown in the
picture below.
WARNING
1. Moving the robot arm manually is intended for urgent emergency purposes
only and might damage the joints.
2. If the brake is released manually, gravitational pull can cause the robot arm
to fall. Always support the robot arm, tool/end effector and work item when
releasing the brake.
UR10 12 User Manual