Brooks Automation
P/N: PFD0-DI-00010, Rev 5.0.0, April 9, 2022
Appendix D: Preventative Maintenance
Copyright © 2022, Brooks Automation, Inc.
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Appendix D: Preventative Maintenance
Every 1 to 2 years, the following preventative Maintenance procedures should be performed. For robots
that are continuously moving 24 hours per day, 7 days a week at moderate to high speeds, a one-year
schedule is recommended. For robots with low duty cycles and low to moderate speeds, these
procedures should be performed at least once every two years.
Check List
Procedure If Problem Detected
Check all belt tensions
Re-tension if necessary
Check air harness tubing in
elbow if present, and theta
axis for any wear
Replace if necessary
Check second stage (long) Z
belt for any squeaking
If noisy, add thick grease to front and rear edge of belt if necessary.
(Shell 222 XP or similar). Z timing belt can get stiffer over time (2-3
years) and occasionally start squeaking against pulley flanges.
Check if front cover is rattling
If so, check .125in ID by .062in thick O rings on dowel pins in base
plate under front cover for any deterioration and replace if necessary.
Replace slip ring in DD4 if
present
For units with 23N electric replace the slip ring every third inspection
test, or 20,000 hours of operation.
