4 Repair
4.5.2. Replacement of brake release unit
3HAC026876-001 Revision: C
278
© Copyri
ght
200
6-2008 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 observe the safety information
in section
WARNING - The unit is sensitive to
3. Remove the push button guard from the SMB
cover.
Shown in the figure
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!
Shown in the figure
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 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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