4 Repair
4.5.2. Replacement of brake release unit
289
3HAC026876-001 Revision: F
© Copyri
ght
200
7-2010 ABB.
All rights reserved.
Removal, brake release unit
The procedure below details how to remove the brake release unit.
Action
Note
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
3. Remove the push button guard from the SMB
cover.
.
The guard must be removed to ensure a
correct refitting of the brake release unit.
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.
xx0200000129
•
A: Connector X8
•
B: Connector X9
•
C: Connector X10
•
D: Push buttons
Location of the brake release unit is
shown in the figure
.
6. Remove the brake release unit from the
bracket by removing the four attachment
screws.
Continued
Continues on next page
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