ABB IRB 6640 Product Manual page 291

Removal, brake release unit
The procedure below details how to remove the brake release unit.
3HAC026876-001 Revision: F
Action
1.
DANGER!
Turn off all electric power, hydraulic and
pneumatic pressure supplies to the robot!
For Foundry Prime robots:
Do not turn off the air pressure to motors and
SMB.
2.
esd
WARNING!
The unit is sensitive to ESD. Before handling
the unit please read the safety information in
the section WARNING - The unit is sensitive
to ESD! on page 43
3. Remove the push button guard from the SMB
cover.
4. Let the battery stay connected, to avoid the
need of synchronization of the robot!
5. Disconnect the connectors X8, X9 and X10
from the brake release unit.
6. Remove the brake release unit from the
bracket by removing the four attachment
screws.
4.5.2. Replacement of brake release unit
Note
Shown in the figure Location of brake
release unit on page 288.
The guard must be removed to ensure a
correct refitting of the brake release unit.
Shown in the figure Location of brake
release unit on page 288.
xx0200000129
• A: Connector X8
• B: Connector X9
• C: Connector X10
• D: Push buttons
Location of the brake release unit is
shown in the figure Location of brake
release unit on page 288.
Continues on next page
4 Repair
Continued
289