NoteAction
xx0200000023
3
WARNING
The unit is sensitive to ESD. Before handling the
unit please read the safety information in the sec-
tion The unit is sensitive to ESD on page 32
Remove SMB/BU box by unscrewing the attach-
ment screws.
CAUTION
Clean cover from metal residues before opening.
Metal residues can cause shortage on the boards
which can result in hazardous failures.
4
Lift the SMB/BU unit out of its box and disconnect
the battery cable.
5
Remove the velcro strap that holds the battery.6
Shown in figure Location of SMB
battery on page 169.
Remove the SMB battery.
Battery includes protection circuits. Only replace
with a specified spare part or with an ABB- ap-
proved equivalent.
7
Refitting, battery
Use this procedure to refit the SMB battery.
NoteAction
DANGER
Turn off all:
• electric power supply
• hydraulic pressure supply
• air pressure supply
to the robot, before entering the robot working
area.
1
xx0200000023
2
WARNING
The unit is sensitive to ESD. Before handling the
unit please read the safety information in the sec-
tion The unit is sensitive to ESD on page 32
Continues on next page
Product manual - IRB 6620 171
3HAC027151-001 Revision: T
© Copyright 2006-2018 ABB. All rights reserved.
3 Maintenance
3.4.8 Replacing the SMB battery
Continued
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