VARILITE VL4 - Diffuser Sensor Removal and Replacement

3-42
V
ARI
*L
ITE
®
-
VL4
W
ASH
L
UMINAIRE
S
ERVICE
M
ANUAL
CONFIDENTIAL 02.9628.0010
7-Oct-97
3.3.2.2 Diffuser Sensor Removal and Replacement
Parts
:
1 EA ASSY, MICROSWITCH WITH 24 AWG WIRES
(22.1023.0003)
1 EA CONN HOUSING, MTA CLOSED END NATURAL 4PIN
(52.6300.0001)
1 EA COVER, STRAIN RELIEF /4POS MTA (52.6424.0004)
Tools
:
Screwdriver, Phillips #1
Screwdriver, Phillips #2
Nutdriver, 1/4 inch
Permanent marker, fine
Diagonal cutters
MTA Crimper
Fine point permanent ink marker
To remove and replace diffuser assembly sensor:
Step 1. Remove power to luminaire.
Step 2. Remove diffuser mechanism (
Figure 3-5
).
Step 3. Remove diffuser sensor.
a. Fully close diffuser.
b. At stepper motor mounting plate, using diagonal cutters,
remove cable tie securing motor and sensor wires
(
Figure 3-6
).
LONG BELT
4-40 KEPS NUT
6-32 KEPS NUT
CABLE ANCHOR
4-40X1/4"PPB SCREW
MOTOR W/ PULLEY ASSY
MOTOR MOUNT
SHORT BELT
SENSOR
2-56 NYLON INSERT
STOP LOCK NUT
Figure 3-6. Diffuser Mechanism Motor and Sensor Removal and Replacement