Code 3 MX 7000 - Manual (Page 16)

Maintenance for Upper and Lower Level Components
(including Flasher and Stingray Electronics)
Upper level components may be replaced by removing the appropriate fasteners attaching the
components as shown in Figure 19. Carefully pull the electrical leads up through the access hole in the
midplate and disconnect at the quickslide terminal. The midplate assembly can be removed entirely from
the light bar in Steps 1 and 2 below and serviced at a workbench. Reassemble as explained in Step 5.
To replace a lower level component, follow these steps:
1.)
Remove the Closeout plates by lifting the outer edge and sliding the tabs out of the midplate.
2.) Remove four 8-32 X 3/8" screws to detach the midplate (see Figure 15, the rotating reflector may
be moved for better access by turning the drive worm with thumb or forefinger.) Remove the
midplate by disconnecting the rotator electrical leads at their quick slide terminals.
3.) It is important that all lower level components are attached with fasteners that extend through the
locator strip and into the frame. Use #8 X 1/2" S.S. sheet metal screws for stationary reflectors
and #8 X 5/8" S.S. sheet metal screws for all other lower level components.
4.) Flasher and electronic boxes may be replaced at this step. They are attached using a 8-32 X 1"
S.S. machine screw.
5.)
Make sure that all components and electrical leads are attached before reassembly. The midplate
must be temporarily grounded to the frame if recommended electrical testing is done before
reassembly. (Rotators will not operate.) Reassemble in reverse order being careful not to pinch
the chassis wires.
Closeout Plate
Midplate
8-32X3/8"
Screw
Closeout Plate
Figure 16
Lower Unit Light
Figure 15
WARNING!
High voltage and/or temperatures are present inside the unit. Disconnect from
power and wait 10 minutes prior to servicing or troubleshooting. Using hand
and eye protection when changing halogen lamps or flashtubes.
!
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