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Source Four LED User Manual v1.8.0
Adjust the C-clamp (North America)
Figure-2.9 Adjusting the c-clamp
The c-clamp attaches the fixture to the mounting pipe and allows fixture adjustments when mounted.
1:
Secure the c-clamp to the yoke with the provided yoke bolt and lock washer.
2:
Place the c-clamp on the mounting pipe and secure by tightening the pipe bolt.
3:
Loosen the c-clamp pan screw and rotate the yoke to the desired position.
4:
Retighten the pan screw to lock the fixture.
Adjust the Yoke Position
The Source Four has a two-position yoke for modifying the overall mounting height.
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Figure-2.10 Adjusting the yoke position
1:
Remove the yoke locking knobs, washers, and hex bolts from either side of the fixture.
2:
Raise or lower the fixture to the desired position within the yoke.
3:
Reinstall the yoke’s hex bolts, washers, and locking knobs.
4:
Tighten the yoke knobs to secure the fixture in position.
CAUTION:
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.
C-clamp
Pipe bolt
Pan screw
Yoke bolt and lock
washer
Low clearance position
General use position