Adjusting Belt Tensions - ETC Source Four Revolution User Manual

A d j u s t i n g B e l t T e n s i o n s
Over time and with repeated use, belts may loosen. Belts that are too loose may cause the
fixture to calibrate incorrectly and may affect the movement or repeatability of the motorized
mechanisms. Follow all belt adjustment procedures carefully to insure optimum operation
of the Revolution luminaire.
A d j u s t i n g T i l t a n d P a n T e n s i o n
Adjusting tilt belt tension:
Step 1:
Step 2:
Step 3:
Step 4:
Step 5:
Step 6:
Tilt Lock Mechanism
32
Power-down the fixture. See
Using a #2 Philips screwdriver, loosen the four captured screws on the tilt-side
yoke cover and remove the cover. The tilt-side has the tilt lock mechanism
protruding through the yoke cover.
Loosen, but do not remove, the four screws securing the tilt motor assembly to
the yoke leg.
Pinch the tilt 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.
Tighten the motor screws in a star pattern.
Place the yoke cover back on and tighten the captured screws.
Power-down Procedure, page
Belt Tension
Motor Adjustment Screws
Source Four Revolution User Manual
9.
Spring