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Maintenance
9.2 Corrective Maintenance
Removing the protective ring for IP56 degree of protection
The V ring for the outer bearing seal is fitted with a protective ring
IP56. The protective ring does not have to be removed for disassembling the bearing bush.
● Remove the protective ring together with the V ring and the outer bearing cover or end shield
See also
Install the V ring (Page 130)
9.2.4.3
Removing the labyrinth sealing ring
Note
For the "Increased degree of protection" option, the machine is equipped with a labyrinth
sealing ring on the drive side and the non-drive side.
Before uninstalling the roller bearing, the labyrinth sealing ring must be removed.
The labyrinth sealing ring
adhesive such as Loctite 243.
Figure 9-4
1. Mark the components of the bearing units so that they can be assembled correctly.
2. Remove the protective coating from the shaft in front of the Iabyrinth sealing ring.
3. Unscrew the three radially arranged set screws for fixing the ring axially.
4. Screw suitable bolts or screws into the radial threads for pulling off. Note the length of
5. Warm the labyrinth sealing ring as you pull it off.
128
from the shaft.
Disassembling the labyrinth sealing ring (schematic diagram)
engagement to avoid clamping to the shaft or damaging the thread.
③
is fixed with three grub screws that are separably secured with
②
for degree of protection
SIMOTICS FD 1LM1
Operating Instructions 01/2019
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