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C
HAPTER
3. M
AINTENANCE
P
ROCEDURES
3-45
02.9631.0010
CONFIDENTIAL
15 Jan 98
3.3.1.2
Brightness/Focus Bulkhead Brightness Iris Removal
and Replacement
Parts:
1 EA
ASSY, BRIGHTNESS IRIS (22.1011.0001)
Tools:
Screwdriver, Phillips #1
Screwdriver, Phillips #2
Spacer, 0.05 inch
Nutdriver, 3/16 inch
Nutdriver, 5/16 inch
Loctite 242
To remove and replace brightness/focus bulkhead brightness iris
assembly:
Step 1.
Remove power to luminaire.
Step 2.
Remove head assembly covers.
Step 3.
Remove brightness/focus bulkhead. Refer to Brightness/Filter
Bulkhead Maintenance paragraph.
Step 4.
Remove focus lens mounting tube from brightness/focus
bulkhead.
a. At linear actuator motor shaft, disconnect focus lens
mounting tube from linear actuator motor.
1. For VL2B luminaire, using 3/16 inch nut driver, remove
2-56 nut and #2 split flat washer from end of shaft
securing focus bearing tube to motor shaft (Figure 3-3).
2. For VL2C luminaire, using 5/16 inch nut driver, remove
4-40 KEPS nut from end of shaft securing focus bearing
tube to motor shaft