User Manual

10 Source 4 WRD
Fixture installation
The Source 4WRD Light Engine combines the classic form factor of the Source
Four incandescent fixture with an LED light source. The Source 4WRD Light
Engine includes an adjustable yoke, C-clamp, and attached power lead.
Attach C-clamp and safety cable
The C-clamp attaches the fixture to the mounting pipe and allows you to
adjust the position of the mounted fixture. ETC recommends using
1.5” schedule 40 pipe.
1: Tightly fasten the C-clamp to the yoke with the provided yoke bolt and
lock washer.
2: Place the C-clamp on mounting pipe, then tighten the pipe bolt to
secure it.
3: Loosen the C-clamp pan screw and rotate the yoke to the desired
position.
4: Tighten the pan screw to lock the fixture.
5: Connect the safety cable.
6: Tighten C-clamp pipe bolt to 15–20 ft lbs (20–27 Nm), approximately
finger tight plus up to one-quarter turn.
7: Tighten the yoke pivot bolt to 5–10 ft lbs (6–7 Nm), approximately
finger tight plus up to one-eighth turn.
CAUTION:
Do not exceed 25 ft lbs (33 Nm) while tightening the
C-clamp pipe bolt. Do not use excessive force.
CAUTION:
Do not exceed 15 ft lbs (20 Nm) while tightening the yoke
pivot bolt. Do not use excessive force.
Source 4WRD LED
Retrofit
Attached power lead
Adjustable yoke
Source Four lens tube
(not included)
Shutters (x4)
Yoke locking
knob
Cat5 cable
strain relief