C
HAPTER
3. M
AINTENANCE
P
ROCEDURES
3-41
02.9628.0010
CONFIDENTIAL
7-Oct-97
3.3.2
Diffuser Mechanism Maintenance
3.3.2.1
Diffuser Mechanism Removal and Replacement
Parts:
1 EA
ASSY, DIFFUSER MECHANISM (VL4) (22.4003.0001)
Tools:
Screwdriver, Phillips #2
Cutters, diagonal
To remove and replace diffuser mechanism:
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 diffuser connectors.
a. 4-pin connector from header marked YTB-P15.
b. 8-pin connector from header marked YTB-P14.
Step 4.
Remove diffuser mechanism.
a. At front aperture rails, remove four 6-32x5/16"PPB screws
that secure front aperture to rails (Figure 3-5).
b. Remove cable ties as necessary. Close diffuser.
c. Slide out front aperture plate with diffuser mechanism.
6-32X5/16"PPB SCREW
DIFFREMV
DIFFUSER MOTOR ON
SAME SIDE AS YOKE
TERMINATION BOARD
Figure 3-5. Diffuser Mechanism Removal and Replacement
Step 5.
Replace diffuser mechanism by doing Steps 2 thru 4 in reverse.
a. Ensure that diffuser mechanism is installed with motor and
sensor wires on same side as yoke termination board.
b. Fit motor and sensor wires of diffuser mechanism to notch
in dimmer/filter/douser bulkhead (adjacent to dimmer belt).
Содержание VL4
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