Brooks Automation
P/N: PFD0-DI-00010, Rev 5.0.0, April 9, 2022
Service Procedures
Copyright © 2022, Brooks Automation, Inc.
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General Belt Tensioning
The PFDD robots have been designed to make belt tensioning very simple. See Appendix D for belt
tension specifications.
Tensioning or Replacing the J2 (Z Column) Belts
Tensioning the 1st Stage Belt
DANGER:
Before tensioning the timing belts or replacing any motors, the
AC power should be disconnected. Removing the rear cover allows access
to the AC power terminals.
Tools Required:
1.
Gates Sonic Belt Tension Meter, Model 508C
2.
2.0mm hex driver or hex L wrench
3.
4.0mm hex ball end driver
To adjust tension in the 1
st
Stage Belt the user must:
1.
Turn off robot power and remove the AC power cord.
2.
Remove the curved rear cover of the robot.
3.
Loosen the 4 M5 locking screws on the J1 Motor Mount Bracket to allow the Mount
Bracket to slide up and down.
4.
Measure the tension with the belt tension meter as described in Appendix E.
5.
Adjust the M5 Tension Screw.
6.
After adjusting the Tension Screw, the M5 locking screws should be tightened to lock
the assembly in place and the Rear Cover should be replaced.
