Philips Vari-lite VL3500 Wash FX Luminaries, Service Manual

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M
AINTENANCE
P
ROCEDURES
: I
NTERNAL
L
ENS
R
EPLACEMENT
0 2 . 9 6 8 6 . 0 0 1 0 A 21
2
Internal Lens Replacement
Tools:
• #2 Phillips screwdriver
• Lint-Free Cotton Gloves
To replace the internal lens assembly:
Step 1. Using a control console, close the internal lens assembly. Move internal lens assembly to
front of head (close to the 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.
Step 3. As shown in Figure 2-3 , remove the bottom head cover by loosening four 1/4-turn screws.
CAUTION: Wear cotton gloves or other covering while replacing lenses. If required, clean any
fingerprints or debris from the lenses with isopropyl alcohol and a soft cloth.
Step 4. At the internal lens assembly, remove the two retaining knobs and the cross strap securing
the lens.
Step 5. Slide each section of lens assembly, straight up, and off the hinge rods.
Step 6. Slide the replacement lens assemblies onto the hinge rods.
CAUTION: As shown in Detail A in Figure 2-3 , insure that each lens is aligned and inserted into the
keyed carrier and ensure lens is in front (towards front lens) of bumper stops.
Step 7. Secure lens assembly by replacing the cross strap and retaining knobs. Hand tighten only.
Step 8. Replace head cover.
Step 9. Apply power the luminaire and test the function of the internal lens assembly.