Replacing The Main Bearings; Dismounting The Main Bearings - Virtus H 80 Series Operating Manual

PART A: Basic machine
Granulator
H 80 Series
8.6

Replacing the main bearings

8.6.1

Dismounting the main bearings

 Dismount the "V"-belt cover.
 Dismount the "V"-belts (see Work on the "V"-belts).
 Loosen the tensioning element for the "V"-belt pulley (see, Mount-
 Pull the "V"-belt pulley off the rotor axis, do not tip up. Use suitable
 Pull the distance sleeve off the rotor axis.
 If the granulator is equipped with a disk fly wheel, dismount this in
 Open the granulator upper section (see Opening the granulator ).
 Dismount the cutting knives (see Dismounting the cutting knives).
 Unscrew the bearing housing from the granulator lower section.
 Carefully lift out the complete rotor using suitable lifting and stop-
 Lay the rotor down in a safe location. Suitable for this are timber
 Loose the bearings cover mounting screws and take off the bear-
 Pull the bearing housing off with a pulling-off device.
 Pull the bearing off the rotor axis using a pulling-off device.
 VIRTUS 2023, All rights reserved
The main bearings of the machine are dimensioned so that a
bearing replacement is only necessary in exceptional cases.
Dismounting and mounting of the bearings requires specialist
knowledge and a careful working method. Therefore, in addition to
the following advice, please observe the instructions given in the
installation manual of the bearing manufacturer.
The bearings mounted in this machine are indicated in the spare
parts list. A requirement for dismounting and mounting the
bearings is a suitable pulling-off device.
To dismount the bearings proceed as follows:
The parts which are marked with a piece number are illustrated in
the drawings of the spare parts list!
ing and dismounting TAPER-LOCK tensioning element).
lifting and stopping means.
the same way as the "V"-belt pulley.
ping means.
beams of appropriate size.
ing cover.
Page 54