Vari Lite VL3500 Spot Luminaire, User Manual, Page: 76 / 88

VARI
❋
LITE
®
- VL3500™ W
ASH
L
UMINAIRE
U
SER
’
S
M
ANUAL
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Internal Lens Replacement
Tools:
• #2 Phillips screwdriver
• Lint-Free Cotton Gloves
To replace the internal lens assembly:
Step 1. Using control console, set the VARI
❋
BRITE mode to closed. Move the internal lens
assembly to front (zoom wide) of the head assembly (near luminaire front lens)
WARNING: Remove power from luminaire before performing maintenance. Internal fixture
components and assemblies can be HOT after operation. Allow to adequately cool before replacing.
Step 2. Remove power from luminaire and allow unit to cool.
Step 3. As shown in Figure A-3 , remove appropriate head cover by loosening four 1/4-turn screws.
CAUTION: Wear cotton gloves or other covering while replacing. Clean any fingerprints or debris
from lenses with isopropyl alcohol and soft cloth if required.
Step 4. At the internal lens assembly, remove the two retaining knobs and the cross strap that secure
the lens.
Step 5. Slide each side of lens assembly straight up, and off its respective post.
Step 6. Slide replacement lens assembly onto its post.
CAUTION: As shown in
Detail A
in Figure A-3 , insure that the lens assembly is aligned and fits
properly into keyed carrier.
Step 7. Secure lens assembly by replacing the cross strap and retaining knobs. Hand tighten only.
Step 8. Replace head cover.
Step 9. Power luminaire and test.