VARILITE VL4 - Blue;Amber Bulkhead Worm Wheel Removal and Replacement

C
HAPTER
3. M
AINTENANCE
P
ROCEDURES
3-39
02.9628.0010 CONFIDENTIAL
7-Oct-97
3.3.1.4 Blue/Amber Bulkhead Worm Wheel Removal and
Replacement
Parts
:
1 EA WORM WHEEL, MOLDED 48P 40T 3/16F 1/4"BOR
(55.6570.0001) - Brown
Tools
:
Screwdriver, Phillips #1
Screwdriver, Phillips #2
Nutdriver, 5/16 inch
Diagonal cutters
Wrench, Allen 1/16 inch
Superbonder 498 (06.6007.0498)
Versilube
To remove and replace blue/amber bulkhead worm wheel:
Step 1. Remove power to luminaire.
Step 2. Remove 12, 6-32x5/16"PPB screws that secure head covers to
rails and remove both head covers (
Figure 3-1
).
Step 3. Remove motor worm wheel.
a. At motor mount, remove four 4-40 KEPS nuts that secure
mount to bulkhead and remove mount (
Figure 3-4
).
b. At damaged worm wheel, using 1/16 inch Allen wrench,
loosen setscrew in damaged worm wheel and remove worm
wheel from shaft.
4-40 KEPS NUT
MOTOR MOUNT
STEPPER MOTOR
1/16" ALLEN HEAD
SET SCREW
1 INCH CONTINUOUS
GROMMET (REFLECTOR SIDE)
APPLY SUPERBONDER 498
AROUND BEARINGS IF LOOSE
BATB1
Figure 3-4. Blue/Amber Bulkhead Worm Wheel Removal and Replacement