VARILITE VL4 - Dimmer Leaves Removal and Replacement

3-56
V
ARI
*L
ITE
®
-
VL4
W
ASH
L
UMINAIRE
S
ERVICE
M
ANUAL
CONFIDENTIAL 02.9628.0010
7-Oct-97
3.3.3.7 Dimmer Leaves Removal and Replacement
Parts
:
1 EA ASSY, VL4 DIMMER LEAF, LFT.HAND (22.9628.0187)
1 EA ASSY, VL4 DIMMER LEAF, RT.HAND (22.9628.0188)
as needed
:
ROLLER, DOUSER/DIMMER (10.9628.0101)
WASHER, SPECIAL .010 THK X 0500 DIA (10.9628.0105)
WASHER, SPECIAL .010 THK X .350 DIA (10.9628.0106)
WASHER, SPECIAL, .025 THK X .350 DIA (10.9628.0109)
Tools
:
Screwdriver, Phillips #1
Screwdriver, Phillips #2
Nutdriver, 5/16 inch
White cotton gloves
To remove and replace iris leaves, do the following:
Step 1. Remove power to luminaire.
Step 2. Remove dimmer/filter/douser assembly from luminaire head
(
Figure 3-7
).
Step 3. Remove belt clamp.
At dimmer motor belt, remove 2-56x1/4"PPZ screw that
secures belt clamp to dimmer actuator tab and remove
clamp and screw (
Figure 3-11
).
CAUTION
: Do not touch iris leaves with bare fingers. Oils and dirt will
damage iris leaves!
CAUTION
: Open dimmer before removing cover plate.
Step 4. Remove honeycomb and dimmer cover plate (
Figure 3-13
).
a. With honeycomb facing up and belt facing you , move
dimmer to full open position by sliding actuator tab to right
as shown.
b. At standoffs 9, 10, 11, and 12, remove four 4-40x1/4"PPZ
screws and internal tooth lockwashers that secure
honeycomb and dimmer cover plate to bulkhead and remove
honeycomb.
c. Remove dimmer cover plate.