Check the o-rings in the front ear of the balancing device for leaks, as shown and
detailed below.
xx0700000111
Shaft
A
Sealing ring (radial) 2 pcs
B
O-ring
C
Sealing spacer
D
Note
Action
Clean the area at the front ear from old grease.
1
Run the robot for some minutes, in order to
move the balancing device piston.
2
The o-rings are included in the
Main-
tenance kit, bearings and seals
,
already assembled with sealing
spacers and sealing rings.
Check the o-rings at the front ear for leakage.
Replace the o-rings, if any leaks are detected.
Excessive grease from between the shaft and
the sealing ring is normal and is not considered
as a leak!
3
Art. no. for the kit is specified in
.
The replacement of the complete
bearing is also detailed in section
Replacement of spherical roller bear-
ing, balancing device on page 297
Check for leakage - Design 2
The front ear of the balancing device is lubricated with grease.
Leaks at o-rings, sealings etc. are not acceptable and must be attended to
immediately to avoid damage to the bearing.
Continues on next page
Product manual - IRB 6640 Foundry Prime
147
3HAC040586-001 Revision: N
© Copyright 2011-2018 ABB. All rights reserved.
3 Maintenance
3.3.7 Inspecting the balancing device
Continued
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