Installing And Removing The Diffuser Front - Martin Professional Stagebar 54 User Manual

5. See Figure 4. If a cooling fan or grille requires more thorough cleaning, loosen the fan assembly
retaining screw (arrowed) slightly and slide the assembly out of the end cap for access. Do not strain the
wires to the fan. Brush dirt from the fan blades with a soft brush, preferably in conjunction with a vacuum
cleaner.
6. Avoid trapping wires while reinstalling the fan assembly.

Installing and removing the diffuser front

The diffuser front makes the individual LEDs invisible, giving a surface with smooth color. Before installing
it, remove the LED lenses as described on page 20, otherwise hot-spots will be visible on the diffuser
surface.
To install a diffuser front:
1. Isolate the fixture from power. If the fixture has been in use, allow it to cool for at least 10 minutes.
2. See Figure 5. Loosen the two captive screws (arrowed) on the end cap and swing the end cap open.
3. Slide the diffuser front into the slots provided in the front of the fixture.
4. Close and fasten the end cap before reapplying power.
To remove a diffuser front:
1. Isolate the fixture from power. If the fixture has been in use, allow it to cool for at least 10 minutes.
2. See Figure 5. Loosen the two captive screws (arrowed) on the end cap and swing the end cap open.
3. Slide the diffuser front out of the slots in the front of the fixture.
4. Reinstall the LED lens sheets as described on page 20.
5. Close and fasten the end cap before reapplying power.
Torx 20 Torx 20
Figure 4: Cooling fan removal
Figure 5: Installing and removing the diffuser front
Service and maintenance 19