Appendix E: Preventative Maintenance - Brooks PreciseFlex DD 6-Axis Service Manual

Brooks Automation
Part Number: 628651 Rev. A

Appendix E: Preventative Maintenance

Every one to two years, perform the following preventative maintenance procedures. 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 all belt tensions.
Check air harness tubing in
elbow if present, and theta
axis for any wear.
Check second stage (long) Z
belt for any squeaking.
Check if front cover is
rattling.
Replace slip ring in DD4 if
present.
Copyright © 2024, Brooks Automation
Preventative Maintenance
Procedure If Problem Detected
Re-tension if necessary.
Replace if necessary.
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.
If so, check .125 in ID by .062 in thick O rings on dowel pins in base plate under
front cover for any deterioration and replace if necessary.
For units with 23 N electric replace the slip ring every third inspection test, or
20,000 hours of operation.
Appendices
Appendix E: Preventative Maintenance
60