ABB Robotics IRB 6790 Product Manual page 241

Removing the SMB unit
Use these procedures to disconnect and remove the SMB unit.
Preparations before disconnecting the SMB unit
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Product manual - IRB 6790
3HAC063331-001 Revision: B
Action
DANGER
Make sure that all supplies for electrical power and
hydraulic pressure are turned off.
ELECTROSTATIC DISCHARGE (ESD)
The unit is sensitive to ESD. Before handling the unit
please read the safety information in the section
unit is sensitive to ESD on page 49
Check the leak flow value on the flow sensor (if not
already checked and noted).
Note the value to be able to compare it when repair
is completed.
CAUTION
Turn off the air pressure supply.
Open the small cover on the SMB cover, disconnect
the battery cable and remove the battery.
Remove the SMB cover.
CAUTION
Clean cover from metal residues before opening.
Metal residues can cause shortage on the boards
which can result in hazardous failures.
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4.4.3 Replacing the SMB
Note
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4 Repair
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