Periodic Maintenance; Springs - Omron CR UGD4 Series User Manual

1.

Periodic maintenance

Before working on the robot, please be ensured that the machine where the robot is built in, is totally switched off.
DANGER
• SWITCH OFF THE MACHINE ( SYSTEM ) WHERE THE ROBOT IS BUILT IN (E.G. WITH A PADLOCK) TO PREVENT IT
FROM BEING SWITCHED ON AGAIN.
• LABEL THE MACHINE (SYSTEM) WITH A SIGN INDICATION THAT WORK IS IN PROGRESS. THIS SIGN MUST
REMAIN IN PLACE, EVEN DURING TEMPORARY INTERRUPTIONS TO THE WORK.
• THE EMERGENCY STOP FROM THE MACHINE (SYSTEM) MUST REMAIN ACTIVE. IF SAFETY FUNCTIONS OR
SAFEGUARDS ARE DEACTIVATED DURING MAINTENANCE OR REPAIR WORK, THEY MUST BE REACTIVATED
IMMEDIATELY AFTER THE WORK IS COMPLETED.
1.1

Springs

How to maintain the springs:
• The springs has to be replaced every 3800 working hours or once a year
• When the robot is fall apart, check the springs on damages
• Only use springs delivered by OMRON, otherwise the guarantee will expire
• Replace springs after overstretching
• For spare parts, see Section 3 Spare parts in this chapter
WARNING
• INCORRECT MOUNTED SPRINGS CAN JUMP AWAY.
• WEAR SUITABLE PROTECTIVE CLOTHING AND SAFETY GLASSES.
• NEVER PULL THE SPRINGS FURTHER APART THAN NECESSARY WHEN MOUNTING THE ARM ASSEMBLY ON THE
PRIMARY ARM OR TCP BALL JOINTS.
How to disassemble the springs:
• Disassemble the secondary arms from the robot
• Replace the springs
• For re-assembling the secondary arms, see Section 4 Assembling the secondary arms in Chapter 3
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