Repairing The Rear-End Bearings - Alamarin Jet COMBI-FRAME AJ 285 Repair Manual

Figure 28. Detaching the rear bearing housing from the stator
4. Tighten the screws carefully until the bearing housing comes loose.
5. Pull the bearing housing off the stator.
2.2.2. Repairing the rear-end bearings
Repair operations on the rear bearings are limited to replacing worn parts.
The wearing parts include the bearing, seals, and shaft sleeves, which are
replaced as necessary. The wearing speed varies according to the load on the
jet.
Please note that the greatest permissible radial clearance in the rear bearings
is 0.1 mm.
Seals
20
CAUTION!
If the seals are worn, they may allow water to flow into the
bearing housing, in turn weakening the lubrication of the
bearing and shortening its operating life.
However, it is normal for a small amount of water to leak into
the bearing housing during operation, even if the seals are
intact. This can be observed as a change in lubricant colour,
and it does not affect the operating life of the bearings, as long
as the instructed lubrication intervals are followed.
NOTE!
A removed sealing must always be replaced with a new one,
never reinstalled.
Main shaft and bearing
Repair manual
KM/285/EN/1.1.0