Removing The Labyrinth Sealing Ring; Disassembling The Labyrinth Sealing Ring (Schematic Diagram) - Siemens SIMOTICS FD 1LL1 Operating Instructions Manual

9.2.3.3

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.
Image 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.
See also
Installing the labyrinth sealing ring (Page 132)
SIMOTICS FD 1LL1
Operating Instructions 04/2016

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
Maintenance
9.2 Corrective Maintenance
129