Meade LX200 Classic Service Manual page 11

Procedures for removal and installation of printed circuit board and motor assemblies

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6. Semi-tighten the left mounting screw, push up on the motor block to level the

assembly and tighten the right mounting screw. Tighten the left mounting screw.

Check the worm gear and worm wheel meshing to ensure a good fit.

7. Make sure the spring is in place in the motor assembly. The tension screw should be

adjusted to allow for 1/16" of movement when moving the drive motor. The spring

tension movement allows the motor to compensate for high and low spots in the

worm gear drive. There should be enough movement so the worm gear doesn't

disengage or bind over its full travel.

8. Install the Declination lock knob and check the gear action by turning the Declination

slow motion knob. If the gear action is not smooth enough apply some lithium grease

to the worm gear.

9. Remove the Declination lock knob.

10. Replace the plastic cover plate.

11. Replace the Declination lock knob.