ETC Source Four CE Zoom - Manual (Page 14)

12 • CE Source Four Zoom
English
Adjusting the luminaire yoke (25
°
-50
°
Zoom)
To adjust the luminaire's position, loosen the luminaire yoke
locking knobs and tilt the luminaire to the desired position.
Retighten the yoke locking knobs to secure the yoke.
The Source Four 25
°
-50
°
Zoom includes a two-position yoke that
allows you to modify the overall height of the luminaire in the
yoke. See
Figure 8.
1. To change the luminaire yoke position, remove the yoke
locking knobs, then remove the hex bolts on either side of the
luminaire.
2. Move the luminaire to the desired yoke position.
3. Replace and tighten the hex bolts, washers and the locking
knobs.
Adjusting the balance yoke (15
°
-30
°
Zoom)
The Source Four 15
°
- 30
°
Zoom has an additional yoke to help
reposition the luminaire’s center of gravity.
Important: The Source Four 15
°
- 30
°
lens tube must be
attached to a double-clutch luminaire body. If you purchased
only the lens tube and not the entire Source Four 15
°
- 30
°
Zoom luminaire, make sure that you are using a double-clutch
body.
1. Adjust the balance yoke so that it is perpendicular to the
luminaire as shown in Figure 9. If the front of the luminaire
has several accessories, you may need to tilt the balance yoke
towards the front of the luminaire to adjust the balance.
Caution! Once you lock the balance yoke, you should only
make adjustments to the moveable yoke.
2. Loosen the moveable yoke locking knobs and tilt the luminaire
to the desired position.
3. Retighten the moveable yoke locking knobs to secure the yoke
position
Figure 8
Luminaire yoke
Yoke locking knob
2-position height
Hex bolt
Clutch disc
Figure 9
Balance yoke Movable yoke
Perpendicular
Clutch disc Yoke locking knob
Figure 10
Vertical