Front Lens Assembly Removal - Philips Vari-lite VL3500 Wash User Manual

Front Lens Assembly Removal

Tools:
• 5/32" Allen wrench
• Lint-Free Cotton Gloves
To replace the front lens assembly:
WARNING: Remove power from luminaire before performing maintenance. Internal fixture
components, assemblies and the front lens can be HOT after operation. Allow items to adequately cool
before replacing.
Step 1. Remove power from luminaire.
CAUTION: The luminaire head is a precisely balanced
unit. The weight of the front lens assembly is counter-
balanced inside the head. Removal of the front lens
assembly can result in instantaneous uncontrolled head
movement. To avoid uncontrolled movement when the
luminaire is sitting on upper enclosure, point the head
straight up. To avoid uncontrolled movement when the
luminaire is hanging, point the head up at an angle until it
rests against the tilt stops as shown here.
Step 2. Tilt the head to avoid uncontrolled movement.
As shown in
assembly by loosening four captive screws.
CAUTION: When handling the front lens assembly, wear cotton gloves or other covering. If needed,
clean any fingerprints or debris from lenses with isopropyl alcohol and soft cloth.
Step 3. Carefully position replacement front lens assembly so captive screws align with guide pins
and mounting holes as illustrated in
Step 4. Tighten each captive screw to secure front lens assembly to luminaire head.
Step 5. To optimize beam, align lamp as described in
Step 6. The luminaire is now ready for operation.
02.96 86.000 1 B
Figure A-4, remove front lens
Figure
01 J un e 20 09
T
ROUBLESHOOTING AND
A-4.
"Align Lamp" on page
A
M
AINTENANCE
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