Check for leakage
Leaks at o-rings, radial sealings etc. are not acceptable and must be attended to
immediately to avoid damage to the bearing.
xx1000000207
Shaft
A
Radial sealing with dust lip, 50x68x8 (2 pcs)
B
O-ring, 85x3
C
End cover
D
Note
Action
Clean the area at the front ear from contamina-
tion.
1
Run the robot for some minutes, in order to
move the balancing device piston.
2
DANGER
Turn off all:
•
electric power supply
•
hydraulic pressure supply
•
air pressure supply
to the robot, before entering the safeguarded
space.
3
Check the area around the o-ring and radial
sealings at the ear, for leakage.
4
Maintenance set, link ear:
3HAC087168-001
Replace o-ring and radial sealings if leaks are
detected.
5
Replacement of the complete bearing
is described in section
spherical roller bearing, balancing
device link ear on page 212
Continues on next page
110
Product manual - IRB 6720
3HAC085697-001 Revision: C
© Copyright 2023 ABB. All rights reserved.
4 Maintenance
4.3.2 Inspecting the balancing device
Continued
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