4 Repair
4.5.1. Replacement of SMB unit
3HAC026876-001 Revision: F286
© Copyright 2007-2010 ABB. All rights reserved.
Removal, SMB unit
The procedure below details how to remove the SMB unit.
Action Note
1. Move the robot to the calibration position.
2.
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.
3.
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
4. Remove the SMB cover by unscrewing its
attachment screws.
Shown in the figure Location of
SMB unit on page 285.
5. Remove the connectors X8, X9 and X10 from the
brake release board, if need of more space.
6. Remove the nuts and washers from the pins securing
the board.
Shown in the figure Location of
SMB unit on page 285.
7. Gently disconnect the connectors from the SMB unit
when pulling the board out.
Connectors R1.SMB1-3,
R1.SMB4-6 and R2.SMB
8. Disconnect the battery cable from the SMB unit. Shown in the figure Location of
SMB unit on page 285.
Continued
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