HYBRID Coater Service Manual ver1.1 Chapter 9
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C Then undo the four lower bolts (#6) on the adjusting plate (#7) of the stepper motor (#5).
Slide the stepper motor inwards. This way the tension of the toothed belt on the under
side is lessened and now you can take the toothed belt of the drive wheel of the stepper
motor. Lift out the stepper motor (#5).
D Remove the pulley (#8) on the shaft of the stepper motor by undoing the three bolts (#9)
on the clamping bushing (#10). In order to release the clamping bushing one of these
bolts has to be turned in the other free hole (#11) and tightened.
E Remounting the pulley is done by removing the bolt from the free hole and putting back
the clamping bush on the shaft of the new stepper motor. Then put the back the pulley,
remount the three bolts in the original position and tighten them.
F Remove the adjusting plate (#7) from the old stepper motor (#5) by undoing the four bolts
(#14). Mount a new stepper motor on the adjusting plate (#12) and remount these four
bolts (#14) and tighten them. Mount the new stepper motor (#13) together with the
adjusting plate (#7) back in place. Don’t tighten the four bolts (#6) to tight and push the
motor inwards. Mount the toothed belt back on the drive wheel. Adjust the tension of the
toothed belt evenly with the two adjusting bolts (#12) and tighten the four bolts (#6).
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