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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.
xx0300000284
A
B
C
D
E
F
3HAC022033-001 Revision: E
Shaft
O-ring
Sealing spacer
Sealing ring in sealing spacer
Correct way out for excessive grease from inside the front ear
Incorrect leakage from the front ear
3 Maintenance
3.3.7. Inspection, balancing device
Continues on next page
Continued
157
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