4 Repair
4.5.2. Replacement of brake release unit
3HAC023082-001 Revision: E314
© Copyright 2004-2008 ABB. All rights reserved.
Removal, brake release unit
The procedure below details how to remove the brake release unit.
Action Note/Illustration
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
ESD! on page 40
3. Remove the push button guardfrom the SMB
cover.
Shown in the figure Location of brake
release unit on page 313.
The guard must be removed to ensure a
correct refitting of the brake release unit.
4. Open the SMB cover by unscrewing the
attachment screws.
Let the battery stay connected, to avoid the
need of synchronization of the robot!
Shown in the figure Location of brake
release unit on page 313!
5. Remove the complete brake release unit
(including brake release unit and bracket)
from the SMB recess, by removing its two
attachment screws.
6. 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 Location of brake release
unit on page 313!
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