4 Repair
4.6.1. Replacement of SMB unit
3HAC026048-001 Revision: A144
© Copyright 2006-2008 ABB. All rights reserved.
Replacement, SMB unit
The procedure below details how to replace the SMB unit.
Action Note
1.
-
Danger!
Turn off all electric power, hydraulic and
pneumatic pressure supplies to the robot!
2. Remove the rear cover plate (A) from the base
by unscrewing the attachment screws (B).
xx0200000399
3. Remove the SMB battery. Detailed in section Replacement, SMB
battery on page 84.
4. Remove the SMB cover by unscrewing its
attachment screws.
Pull the battery cable through the hole in the
SMB cover.
5. Remove the two locknuts and washers from
the pins securing the board.
6. Gently disconnect the connectors from the
SMB unit when pulling the board out. Also
disconnect the battery cable from the SMB
unit.
All connectors are shown in the figure
SMB unit, layout on page 143.
7. Gently connect the connectors to the new
SMB unit and push the board in.
All connectors are shown in the figure
SMB unit, layout on page 143.
8. Refit the SMB cover using the attachment lock
nuts.
Pull the battery cable through the hole in the
SMB cover.
9. Reassemble the two locknuts and washers to
the pins securing the board.
10. Refit the SMB battery.
11. Fit a new gasket to the cover and refit the
cover with the attachment screws.
Always replace a removed gasket with
a new!
Art. no. is specified in Required
equipment on page 142.
12. Update the revolution counters! Detailed in section Updating revolution
counters on page 180.
Continued
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