Repairing The Front Bearing - Alamarin Jet COMBI-FRAME AJ 285 Repair Manual

Figure 11. Shaft seal of the bearing housing
A shaft seal is also attached to the drive flange to keep oil off of the cone joint
surface. It can be removed with a screwdriver, for example (figure 12). As this
seal does not move against the shaft, it will not wear like the others.
Figure 12. Drive flange shaft seal
2.1.2. Repairing the front bearing
Under normal circumstances, the operating life of the front bearing is
thousands of driving hours. However, if the lubrication weakens due to, for
example, the failure of the seal or dirty oil, the operating life of the bearing
will decrease rapidly. Using a worn rear bearing also shortens the life span of
the front bearing. A worn bearing will make noise and may cause the bearing
housing to overheat.
The wearing parts of the front bearing include the bearings, mechanical seal,
and front shaft seal. All of the wearing parts and the drive flange seal should
be replaced every time the bearing replaced.
10
Main shaft and bearing
Repair manual
KM/285/EN/1.1.0