Reparing Rolling-Contact Bearings; Repairing The Rolling Contact Bearings With Labyrinth Ring; Figure 9-1 Dismantling The Labyrinth Ring - Siemens H-compact PLUS Operating Instructions Manual

Fit the fan cowl
The fan cowl is made of sheet steel and welded together.
● When installing a fan cowl, make sure that the fastening parts such as the rubber bush
● In the case of unidirectional fans, also check the distance between the fan impeller and
9.2.5

Reparing rolling-contact bearings

Installing rolling-contact bearings
1. Before installing the bearing, place the parts to be attached to the shaft inside the
2. Extreme caution and attention to cleanliness are vital to installation.
3. To install the rolling-contact bearing, warm it up using oil or air heated to around 80°C
4. Push the rolling-contact bearing onto the shaft. Avoid any heavy blows that might
5. Fill the bearing to the top with the specified lubricating grease.
6. After cooling the bearing down, ensure that it is resting against the shaft shoulder.
9.2.6

Repairing the rolling contact bearings with labyrinth ring

Dismounting
Apply a protective coating to the shaft in front of and underneath the labyrinth ring to prevent
corrosion; the three locating setscrews are secured with adhesive (e.g. Loctite 243).
Figure 9-1
● Mark the components of the bearing units so that they can be assembled correctly.
● Remove the protective coating from the shaft in front of the Iabyrinth ring.
WOGeneric TEAAC / 2008
Siemens AG Operating Instructions 1.03 1RQ671...-Z
and thrust pad are intact and installed correctly. Also see the "Ventilation" section in the
spare parts list.
the air guide nozzle (≥ 2mm).
bearing.
damage the bearing.
Otherwise, axial vibrations may occur. Use a feeler gauge to check this.
Dismantling the labyrinth ring
Maintenance
9.2 Corrective Maintenance
53