Delta DRV70L Series User Manual page 9

 Any changes to the maintenance schedule of the robot and maintenance oil are
strictly prohibited.
 Maintenance and inspection of the DCV controller and robot is prohibited while
power is on to prevent electrical shock or injuries to the workers.
 When a robot component is damaged, replacing it with other brands of components
is prohibited to prevent damaging the performance of the robot or the components.
 Wait 10 minutes before opening the controller box after powering it off because
there is residual voltage in the controller that may cause electrical shocks.
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