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Check for leakage
The front ear of the balancing device is lubricated with grease. After filling, excessive grease
may normally be forced out between the shaft and the sealing ring in the sealing spacer. This
is normal behaviour and must not be confused with incorrect leaks from the ear.
Leaks at the o-rings, however, are not acceptable and must be attended to immediately in
order to avoid any damage to the bearing!
Check the o-rings in the front ear of the balancing device for leaks, as shown and detailed
below.
xx0700000111
A
B
C
D
3HAC026876-001 Revision: C
Shaft
Sealing ring (radial) 2 pcs
O-ring
Sealing washer
Action
1. Clean the area at the front ear from old grease.
2. Run the robot for some minutes, in order to
move the balancing device piston.
3 Maintenance
3.3.7. Inspection, balancing device
Note
Continues on next page
Continued
131
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