When the screws are first slackened they must be replaced with new
ones.
Precondition
• The robot is secured by means of an EMERGENCY STOP device. It
must be ensured that the robot cannot be switched on by unauthor-
ized persons.
Work safety
CAUTION
Risk of burns on hot surfaces
High motor surface temperatures immediately after the robot has stop-
ped operating can lead to burns. Injuries may result.
• Protective gloves must be worn.
WARNING
Danger to life and limb due to live components
Components may remain energized after the robot system has been
switched off. Death, severe injuries or damage to property may result.
• Switch off the robot system at the main switch and secure it to pre-
vent unauthorized persons from switching it on again.
• Disconnect the power cable from the supply.
• After switching off, wait at least 5 minutes and then check to ensure
that the robot controller and power cable are deenergized.
WARNING
Risk of crushing during removal and installation of motor
When removing or installing the motor, there is a risk of injury by crush-
ing. This could result in hand injuries.
• Wear protective gloves.
NOTICE
Wear and premature failure due to damage to toothing
Damage to the toothing of the motor and gear unit can lead to in-
creased wear and premature failure of the components.
• During cleaning, ensure that the toothing is not damaged.
• Before installation, check the toothing of the motor and gear unit for
damage.
9.4.2.1 Securing the link arm
Procedure
1. Secure the link arm with a rope sling and attach the rope sling to the
crane hook.
2. Raise the rope sling until it is taut.
KR IONTEC
252/344 | www.kuka.com MA KR IONTEC V4 | Issued: 11.05.2021
Repair
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