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Step 4:
IAC recommends that the installation of the light fixture sub-assemblies onto the light brackets to
be conducted by two assembly personnel. Flip the light fixture sub-assembly over and lift it into
position between the light fixture brackets. The on/off switch should be on the front right hand
side. Install the threaded stem of one end of the light fixture sub-assembly into the slot in the light
bracket and attach it using the 1/4 flat washer and tri knob that were removed in Step 3. Install the
other end of the light fixture sub-assembly by gently pulling the light bracket open enough to place
the threaded stem in the slot of the light bracket. Attach it using the 1/4 flat washer and tri-knob.
Slide the light fixture sub-assembly as far back in the slots in the light brackets as possible and
tighten the tri-knobs enough to hold it in place. Continue with the assembly of other options such
as shelves and electrical channels if needed. When accessory installation is complete continue
with the assembly of the worksurfaces as required.
Step 5:
Q.S. D4 light fixtures use energy saving Electronic Ballasts that require high efficiency T8 light
tubes. IAC recommends F32 T8 light tubes to be used in all Q.S. D4 standard light fixtures. Install
the light tube into the light tube holders located at each end of the light fixture by inserting one of
the two pins on each end of the light tube into the channel of light tube holders. Insert the second
pin of the light tube in the channel of the light tube holders and slowly turn the light tube into the
channels. Rotate the light tube into the light tube holders, being sure both pins of the light tube are
in the light tube holder channels, until the light tube locks into place. Before plugging in and
turning the light fixture on double check that all four pins of the light tubes are in the light tube
holders correctly.
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