Brooks Automation
P/N: PFD0-DI-00010, Rev 5.0.0, April 9, 2022
Service Procedures
Copyright © 2022, Brooks Automation, Inc.
105
To tension the 2
nd
Stage J1 Belt the user must:
1.
Turn off the robot power and remove the AC power cord.
2.
Remove the curved rear cover of from the Z column.
3.
Loosen the 4 M5 locking screws on the Z idler block.
4.
For the 1.42m and 1.0m Z travel robots, the tension screw and belt tension access
hole can be accessed at this point. For the 500mm Z travel robot it is necessary to
remove the 48VDC power supply in order to access the belt tension access hole and
the tension screw. As an alternative, the top cover and front cover may be removed
to access the stage 2 timing belt from the front of the robot. This is the easier
method if tape seals are not installed.
5.
Adjust the second stage Z belt tension per Appendix E, tighten clamping screws and
replace parts. It may be helpful to move the carriage upwards on the taller robots so
that the distance from the top idler pulley to belt attachment on the Z carriage is
500mm, in order to get a higher frequency on the belt, which can be easier to
measure with the tension meter. Use the 500mm span in this case.
Replacing the Z column Stage One Timing Belt
DANGER:
Before replacing the power supplies, the AC power should be
removed.
