Adjusting The C-Clamp; Adjusting The Yoke Position - ETC Source Four jr User Manual

A d j u s t i n g t h e C - c l a m p
Pan screw
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 :
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.
A d j u s t i n g t h e y o k e p o s i t i o n
The Source Four jr / jr Zoom provide multi-positioning capabilities within its yoke for overall fixture
height and angle.
S e t t i n g t h e f i x t u r e h e i g h t w i t h i n t h e y o k e
The fixture is equipped with a two-position yoke for modifying the overall height in which the fixture
is mounted (see Figure
General use position
Yoke locking knob
Step 1: Remove the yoke locking knobs, washers, and hex bolts from either side of the fixture.
Step 2: Raise or lower the fixture to the desired position within the yoke.
Step 3: Reinstall the yoke's hex bolts, washers, and locking knobs.
Step 4: Tighten the yoke knobs to secure in position.
C-clamp
Figure 9).
10). To change the height position, perform the following steps.
Pipe bolt
Yoke bolt and
lockwasher
Yoke
Figure 9
Low clearance position
Figure 10
7