VARILITE VL4 - Loose Diffuser Panel Emergency Fix

C
HAPTER
3. M
AINTENANCE
P
ROCEDURES
3-45
02.9628.0010 CONFIDENTIAL
7-Oct-97
3.3.2.4 Loose Diffuser Panel Emergency Fix
Tools
:
Needle, 1" metal (06.3003.0001) or Needle, 1/2" (06.3004.0001)
Loctite, Superbonder 498
Protective glasses
Note
: This procedure is provided for use during an emergency situation.
During transportation, all
VL4
luminaires should be placed in pack-up cues
to prevent damage to diffuser panels.
To repair loose diffuser panels in an emergency situation:
Step 1. Remove power to luminaire.
Step 2. Remove 12, 6-32x5/16"PPB screws that secure head covers to
rails and remove both head covers (
Figure 3-1
).
WARNING
: Wear protective glasses when applying glue to diffuser
carriers.
Step 3. Fit 1 or 1/2 inch needle to Loctite Superbonder 498 bottle. To
verify glue flows smoothly, allow few drops of glue to flow thru
needle.
Step 4. At diffuser, position diffuser panels so that diffuser carriers on
first clear diffuser panels of both sets are accessible thru
aperture in front plate.
Step 5. Tilt luminaire head slightly down. Apply 1/16 inch fillet bead of
glue along edge of lower carrier of first clear diffuser panel on
one set of panels. Ensure that glue does not spill over edges of
diffuser carrier.
Step 6. Apply glue to first diffuser panel of other set of panels.
Step 7. Tilt luminaire head slightly away. Apply bead of glue along
edge of upper carrier of first diffuser panel on one set of panels.
Step 8. Apply glue to first diffuser panel of other set of panels.
Step 9. Allow glue to set before exercising diffuser.
Step 10. Secure head covers to side rails with 12, 6-32x5/16"PPB
screws.