4 Repair
4.5.2. Replacement of brake release unit
3HAC026876-001 Revision: F290
© Copyright 2007-2010 ABB. All rights reserved.
Refitting, brake release unit
The procedure below details how to refit 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 to
ESD! on page 43
3. Fasten the brake release unit on the bracket
with the attachment screws.
Make sure the unit is positioned as straight as
possible on the bracket! The push buttons can
otherwise get jammed when the SMB cover is
refitted.
Shown in the figure Location of brake
release unit on page 288.
Art. no. is specified in Required
equipment on page 288.
4. Connect the connectors X8, X9 and X10 to the
brake release unit.
xx0200000129
• A: Connector X8
• B: Connector X9
• C: Connector X10
• D: Push buttons
5. Refit the SMB cover with its attachment
screws.
The push button guard must not be mounted
on the cover before the check described below
is made!
Shown in the figure Location of brake
release unit on page 288.
Continued
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