ETC Source Four Revolution with Wybron User Manual
Page 41

Routine Maintenance
37
Adjusting pan belt tension:
Step 1:
Power-down the fixture (see
) and disconnect
any power and data cables from the upper enclosure.
Step 2:
Place the fixture on its side on a stable surface.
Step 3:
Remove any hook or hanging hardware from the data module side of the upper
enclosure and loosen the two rubber feet on that side.
Step 4:
Remove the two screws securing the data module to the upper enclosure and
carefully slide the module out of the upper enclosure. Place the module out of the
way, keeping all connectors plugged in.
Step 5:
Loosen, but do not remove, the four screws securing the pan motor assembly to
the upper enclosure.
Step 6:
Pinch the pan belt together a few times to adjust the motor placement. Allow the
motor to settle against the spring. Make sure the spring is centered on the plate.
Step 7:
Tighten the motor screws in a star pattern.
Step 8:
Carefully slide the data module back into the upper enclosure. Ensure that no
wires are pinched in the process.
Step 9:
Reinstall and tighten the two screws securing the data module to the upper
enclosure.
Step 10: Retighten the screws securing the rubber feet on the data module side and
reinstall any removed hanging hardware or hooks, if necessary.
Data module screws on opposite side of upper
enclosure. (Module not shown in this drawing.)
Pan Motor Assembly
Spring
Motor Adjustment Screws
Rubber feet screws
Belt Tension