AEC Colortronic MSH Series 2039 - Manual (Page 36)

C Series Granulators Maintenance 36 of 53
5-11 Motor Drive Belt Replacement
If replacement of any V-belt is necessary, you must replace all belts at the same time with a
set of matched belts. To replace the belts, proceed as follows:
1. Turn off the main power and remove fuses.
2. Remove the belt guard to gain access to the belts.
3. Loosen the four motor base screws.
4. Turn the adjusting screw on the motor slide base to release all tension from the belts.
5. Remove the belts.
6. Check the pulley alignment as follows:
a. Open the drive pulley access panel.
b. Tug outward on the motor pulley to verify that it is tight on its shaft. If the
motor pulley is loose, tighten it to its shaft after completing the alignment.
c. Check whether the pulleys are parallel by holding a straight edge against the
edge of the large pulley and verifying that it is parallel to the edge of the small
pulley. The straight edge must be placed on the face of the large pulley closest
to the cutting chamber. If the pulleys are not parallel, use the adjusting screws
to make the pulleys parallel.
d. Check the pulley grooves for alignment. Measure the distance from the straight
edge to the first groove in each pulley. If they are not the same, move the motor
pulley to correct the alignment.
7. Install the new belts and proceed to adjust the belt tension as instructed in Section 5-
10 on page 35.
8. Tighten down the motor base screws.
9. Replace base panels and guards.
10. Replace the line fuses and turn main power on.