Removing EK8./EK9./AK8./AK9./RK8M – A1GA/A2GA axial add-on encoder set (installation on rear of fan guard)

  1. Unscrew the screws [E].
  2. Remove the connection cover [619] from the connection adapter [U].
  3. Unscrew the screws [3169].
  4. For size 71 – 280: Unscrew the screws [34].
  5. For size 315 – 355: Unscrew the screws [1711].
  6. For size 71 – 280: Remove the safety cover [361] from the fan guard [35].
  7. For size 315 – 355: Remove the safety cover [657] from the fan guard [35].
  8. Guide the connection adapter [U] mounted on the support plate [3167] through the opening in the grille of the safety cover [361]/[657].
  9. Loosen the screws [D] in the lower part [C].
    • Only unscrew the screws [D] to such an extent that the connection adapter [U] can be moved in the recess of the support plate [3167].
  10. When doing this, slide the connection adapter [U] out of the recess of the support plate [3167].
  11. Remove the screws [22].
  12. Unscrew the screws [232].
  13. Remove the fan guard [35] over the encoder [220].
    • Guide the connection adapter [U] with the signal cable through the cutout of the fan guard [35].

    NOTICE

    In the case of encoders RK8M, EK8W, AK8H, AK8W, EK8Z, EK9Z, and AK8Z on DR2C.. motors, loosening the central retaining screw [A] of the encoder [220] or loosening the insulation coupling [1891] of the motor or encoder shaft desynchronizes the encoder and motor rotor.
    Higher motor losses and lower torques.
    • Perform a new adjustment.
  14. Unscrew the screw plug [A] of the encoder [220].
  15. Loosen the central retaining screw of the encoder [220]. Use a tool that is at least 45 mm long for this.
    • If the central retaining screw of the encoder [220] cannot be loosened, counter-tighten the spanner flat SW10 of the encoder shaft.
  16. Loosen the cone connection.
    • Encoder EK8., AK8W, AK8Y, RK8M: To loosen the cone connection, continue turning the central retaining screw of the encoder [220] counterclockwise.
    • Encoder AK8H: Continue turning the central retaining screw of the encoder [220] counterclockwise. To loosen the conical connection, screw an M6 screw (≥ 70 mm long) into the bore.
  17. Remove the encoder [220] from the rotor [1] or from the coupling [233]/[1891].