ABB IRB 6600 - 175/2.55 User Manual page 495

Removal, brake
The procedure below details how to remove the brake release unit.
release unit
Please observe the following before commencing any repair work on the manipulator:
- Motors and gears are HOT after running the robot! Burns may result from touching the
motors or gears!
- Turn off all electric power, hydraulic and pneumatic pressure supplies to the robot!
- Take any necessary measures to ensure that the manipulator does not collapse as parts are
removed, e.g. to secure the lower arm with fixtures if removing motor, axis 2.
Follow these instruction to prevent the unit to be damaged from ESD:
The unit is sensitive to electrostatic discharge. It will be destroyed if subjected to electrostatic
voltages.
Before handling, make sure you are connected to earth through a special ESD wrist bracelet
or similar.
Step
3HAC 16247-1
Action
1. Open the SMB cover by unscrewing the
attachment screws.
Let the battery stay connected, to avoid
the need of synchronization of the robot!
2. Disconnect the connectors X8, X9 and
X10 from the brake release unit.
3. Unscrew the four attachment screws,
brake release unit.
4. Remove the brake release unit from the
plate.
A
3 Repair activities, manipulator
3.4.3 Removal of brake release unit
Note/Illustration
Shown in the figure Location of brake
release unit on page 78!
A
2
1
xx0200000129
• A: Connector X8
• B: Connector X9
• C: Connector X10
Location of brake release unit shown in
the figure Location of brake release unit
on page 78!
Shown in the figure Location of brake
release unit on page 78!
B
2 2
1 1
C
79