As you will see below, this resulted in three of the four axes being damaged. The cost of the repairs was estimated to be in the range of $80,000. While the basic recommended PM interval is every 3 years or 11,520 hours, operating conditions, range of motion utilized, speed and other factors should be taken into account when setting PM intervals.
Losing 5 to 7 Years of Robot Life: Analyzing the Wear in the FANUC M-410
Robot Disassembly & Assessment
The following case study involved GMP (Good Manufacturing Process) customer that utilizes a Fanuc M-410 robot together with a PASCO vacuum EOAT to palletize cases. The cell features a 3 in, 2 out configuration with a shuttle car feeding a stretch wrapper.
This customer runs the robot at nearly full capacity at 100% speed using the full range of motion available. The robot is in operation 24/7, 365. The PM intervals were originally set, by the customer (Based on the OEM basic recommendations), to every three years.
001. // The Challenge
002. // The Solution
In this particular application, the PM should have been scheduled to occur annually. The estimated PM cost of $6,400 a year could have saved the extensive repair cost along with saving downtime of 3-4 days. Follow along below to see the damage caused by not taking into account all operational variables when setting PM schedules.
003. // Conclusion
This robot was deemed to be ‘beyond reasonable repair’, and was replaced with a
brand new FANUC M-410 within two days by the PASCO service team.
With annual preventative maintenance properly executed this robot could have provided another 5 to 7 years of dependable service.
INSTALL & STARTUP
PASCO SERVICE MANAGER
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