Roller-Contact Bearings; Removing Roller Bearing - Siemens SIMOTICS FD 1LL1 Operating Instructions Manual

Assembly
1. Clean the shaft and the hub before fitting the impeller and grease them lightly.
2. Warm up the fan hub, e.g. using a flame. Push on the warm fan hub.
3. Screw the fan impeller to the hub.
4. Attach the air inlet nozzle. The distance between external fan and air inlet nozzle must be
9.2.3

Roller-contact bearings

9.2.3.1

Removing roller bearing

Preparation
● Remove any grease feeders, shock pulse measurement equipment and possibly mounted
● Remove the coupling on the drive end or make the shaft extension freely accessible.
● At the NDE, proceed as follows depending on the machine type:
Note
For a schematic diagram of the respective component layout, see Section "Spare parts
(Page 135)".
SIMOTICS FD 1LL1
Operating Instructions 04/2016
≥ 2 mm evenly over the circumference.
instrumentation at the DE and NDE.
– First, remove the fan cowl (Page 125) or external fan cowl.
– Remove the external fan (Page 125).
Maintenance
9.2 Corrective Maintenance
127