VARILITE VL4 - Lamp Mounting Assembly Actuator Motor Removal and Replacement (Shop Only)

C
HAPTER
3. M
AINTENANCE
P
ROCEDURES
3-69
02.9628.0010 CONFIDENTIAL
7-Oct-97
3.3.4.3 Lamp Mounting Assembly Actuator Motor Removal
and Replacement ( Shop Only )
Parts
:
1 EA MOTOR, LINEAR ACTUATOR 12V (44.5013.0001)
1 EA CONN HOUSING, MTA CLOSED END BLUE 8PIN
(52.6383.0001)
1 EA COVER, STRAIN RELIEF /8POS MTA (52.6424.0008)
Tools
:
Screwdriver, Phillips #1
Screwdriver, Phillips #2
Diagonal cutters
Wrench, 11/32 inch
MTA crimper
Nut driver, 3/16 inch
Permanent ink marker
To remove and replace lamp mounting assembly actuator motor:
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. At yoke termination board, disconnect 8-pin IDC connector
from header marked FOCUS.
Step 4. Remove lamp assembly.
a. At lamp assembly, turn 1/4-turn fasteners on rear of lamp
assembly and carefully slide out lamp assembly from
luminaire head (
Figure 3-19
).
b. At lamp assembly opening, remove one 4-40x5/16"PFB
screw and 4-40 KEPS nut that secures lamp assembly safety
tether to luminaire and remove lamp assembly.
c. At lamp mounting assembly, at safety tether, remove
4-40x3/8"PPB screw and 4-40 KEPS nut that secures cable
anchor and tether to lamp assembly.
CAUTION
: Do not touch glass envelope of lamp with bare fingers. Oils
on fingers will deteriorate glass when heated and may cause glass to
explode.
Step 5. At lamp carriage, squeeze and lift lamp retainer. Remove lamp
from carriage.