4 Repair
4.5.2. Replacement of brake release unit
1973HAC027151-001 Revision: B
© Copyright 2006-2008 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!
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 35
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 195.
Art. no. is specified in Required
equipment on page 195.
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. Put the SMB/BU unit carefully back into its box
and refit 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 195.
Continued
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