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BJ5-620 Maintenance 35 of 73
Mounting the Rotor
1. Before starting, clean the bearing seat surfaces and check the key.
2. Lift the rotor using suitable lifting and stopping equipment and place carefully
into the bearing seats.
3. Attach the bearing housing (Pos.) to the bearing seats using screws.
4. Put the gear onto the rotor axis.
5. Put back the rotor mounting slot cover plates.
6. Put in the screen.
7. Pull on V-belts and adjust the V-belt tension force.
8. Attach the V-belt.
9. Carry out a test run.
NOTE: If the spare rotor is delivered without bearings, the bearings MUST be
mounted first.
Replacing the Main Bearings
The main bearings of the machine are designed so a bearing replacement is necessary only in
exceptional cases. Dismounting and mounting of the bearings requires specialist knowledge
and a careful working method. In addition to the following advice, please observe the
instructions given in the installation manual of the bearing manufacturer or ask the service
department for help.
The bearings mounted in this machine are indicated in the spare parts list. A suitable pulling-
off device is required for dismounting and mounting the bearings
.
Dismounting the Main Bearings
1. Dismount the V-belt cover.
2. Dismount the V-belts.
3. Dismount the gearbox.
4. Pull the distance sleeve off the rotor axis.
5. Remove the screen
6. Remove the rotor cover plates from the machine housing.
7. Screw in hooks on both shaft ends.
8. Hang on rotor on both shaft ends.
9. Remove the bearing housing fixing bolt.