Rotating The Barrel Assembly; Adjusting The C-Clamp - ETC Source Four Zoom User Manual

Step 4: Slide the slot cover back toward the shutters until it meets the iris handle. Leave enough
space to move the iris handle.
Step 5: Secure the drop-in iris slot cover by tightening the screws.
R o t a t i n g t h e b a r r e l a s s e m b l y
Step 1: Loosen the barrel rotation knob directly behind the shutters on the underside of the
reflector housing (see
Step 2: Rotate the barrel to the desired position (up to 25° in either direction from the centered
position).
Step 3: Once the barrel is positioned, tighten the barrel's rotation knob to lock it in place.
A d j u s t i n g t h e C - c l a m p
The C-clamp attaches the fixture to the mounting pipe and allows you to adjust the position of the
fixture once it is mounted (see
Step 1: Tightly fasten the C-clamp to the yoke with the provided yoke bolt and lock washer.
Step 2: Place the C-clamp on mounting pipe, then tighten the pipe bolt to secure it.
Step 3: Loosen the C-clamp pan screw and rotate the yoke to the desired position.
Step 4: Tighten the pan screw to lock the fixture..
C A U T I O N :
Adjustments
Barrel
rotation knob
Figure
Pan screw
Yoke bolt and
lockwasher
Figure 10).
Tighten C-clamp pipe bolt to 15-20 ft./lbs. (approximately finger tight plus up to
one-quarter turn). Do not exceed 25 ft./lbs. Do not use excessive force.
Tighten the yoke pivot bolt to 5-10 ft./lbs. (approximately finger tight plus up to
one-eighth turn). Do not exceed 15 ft./lbs. Do not use excessive force.
9). Do not remove the barrel rotation knob.
C-clamp
Pipe bolt
Yoke
Figure 9
Figure 10
7