BLACKMER IOM E Series, Installation, Operation & Maintenance Manual, Page: 37 / 52

1901-a00 37
REPLACE INNER MAGNETS
(E1-133 and E1-222 Models)
1. Carefully cut the sleeve. Be careful to avoid damaging the rotor in the area around the front and rear O-rings.
2. If bushing carrier is installed, remove it per the instructions in Section 7,
Replace Rotor Bushings .
3. Remove the rotor head. If it doesn’t come off freely, then thread the bushing carrier bolts into the jacking screw holes on
the rotor crown and slowly remove the rotor crown from the inner ring by evenly tightening the jacking screws.
4. Pull sleeve off of the rotor assembly.
5. Remove the old magnet segments from the vinner ring.
6. Remove the front and rear sleeve O-rings from the grooves in the inner ring.
7. Slowly bring one (1) end of the new magnet segment into contact with the end of one (1) flat on the inner ring, such that
only a short length of the magnet is in contact with the inner ring.
8. Slide the magnet segment along the length of the inner ring until it touches the small stop at the end of the inner ring.
Note: E1-133/222 inner ring shown Note: E1-133/222 inner ring shown
Check orientation: same polarity =
attraction force Check orientation: opposite polarity =
repulsion force
9. Repeat steps 7 and 8 for the other magnet segments, making sure that each magnet is in opposite polarity with adjacent
magnets. Refer to the Inner Magnet Polarity figure.
10. Install new O-rings in the grooves of the inner ring.
11. Align the new sleeve over the front of the inner ring and press the sleeve over the magnets and O-rings until it contacts
the front of the inner ring.
12. Visually inspect the front and rear of the sleeve to verify that the O-rings were not damaged by the sleeve.
13. Install rotor crown onto inner ring.
14. Install bushing carrier into rotor assembly per the instructions in Section 7,
Replace Rotor Bushings .