NoteArticle numberEquipment, etc.
See chapter Circuit diagrams on
page 395.
-Circuit diagram
Removing, SMB unit
Use this procedure to remove the SMB unit.
NoteAction
Move the robot to the calibration position.1
DANGER
Turn off all:
• electric power supply
• hydraulic pressure supply
• air pressure supply
to the robot, before entering the robot working area.
2
ELECTROSTATIC DISCHARGE (ESD)
The unit is sensitive to ESD. Before handling the unit
read the safety information in section The unit is
sensitive to ESD on page 31
3
Shown in the figure Location of
SMB unit on page 171.
Remove the SMB cover by unscrewing its attachment
screws.
CAUTION
Clean cover from metal residues before opening.
Metal residues can cause shortage on the boards
which can result in hazardous failures.
4
Use caution and remove the connectors X8, X9 and
X10 from the brake release board, if need of more
space.
5
Shown in the figure Location of
SMB unit on page 171.
Remove the nuts and washers from the guide pins
that secure the board.
6
Connectors R1.SMB1-3,
R1.SMB4-6 and R2.SMB
Use caution and disconnect the connectors from the
SMB unit when pulling the board out.
7
xx1700000993
Disconnect the battery cable by pressing down the
upper lip of the R2.G connector to release the lock
while pulling the connector upwards.
8
Continues on next page
172 Product manual - IRB 760
3HAC039838-001 Revision: M
© Copyright 2011-2018 ABB. All rights reserved.
4 Repair
4.3.3 Replacing the SMB unit
Continued
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