iOptron CEM70 Manual page 3

DEC Belt Adjustment
1. Rotate the mount in RA to expose the DEC motor
cover under the DEC saddle. There are 4 hex head
screws hold it in place. One is blocked by the DEC
control board cover.
2. Remove two screws that hold the DEC board cover.
3. Remove two screws under DEC ring gear
compartment.
4. Remove another two on the back.
5. Slightly release 3 screws that hold the motor on
worm assembly. To tighten the belt, gently push the
motor outward. Hold the motor while tightening
the screws. Check the mount performance before
put the cover on.