Overview:

RUSH MH 7 Hybrid- Replacing Gobos

Replacing gobos

The rotating gobos supplied with the fixture can be replaced with custom glass or stainless steel gobos. See specifications below:

Interchangeable Gobos 

• Acceptable materials- Stainless steel or borosilicate glass with 450° C - high temperature resistant coating
• Diameter- 14 mm, +0/-0.2 mm (0.55 in., +0/-0.0079 in.)
• Max. Image diameter, glass- 8 mm (0.31 in.)
• Max. Image diameter, metal- 9.5 mm (0.37 in.)
• Thickness, glass- 1.1 mm, +0/-0.05 mm (0.045 in., +0/-0.002 in.)
• Thickness, metal- 0.2 mm (0.008 in.) nominal

​*Optical components have fragile coatings and are exposed to very high temperatures. Handle and store components with care. Wear cotton gloves while handling them. Keep them perfectly clean and free of oil and grease to reduce the risk of heat damage.*  

​To replace a rotating gobo: 

1.   Disconnect the fixture from power and allow it to cool for at least 60 minutes.

2.   Loosen the screws indicated with an M4 TORX screwdriver and remove the top head shell. (See illustration below.)

3.   The rotating gobos sit in gobo holders that slot into clips in the rotating gobo wheel. Find the gobo you want to replace. Pull its gobo holder away from the gobo wheel slightly, then lift the gobo holder out of its clip in the wheel.  

4.   The gobo is held by a retaining spring. Use needle-nose pliers or a flat-bladed screwdriver to release the end of the spring.

5.   Remove spring, retaining ring and gobo.

6.   Insert the new gobo in the holder with the reflective side facing down (facing towards the lamp) and the dark side facing up.  

7.   Insert the retaining ring, making sure the tab fits in the slot in the gobo holder.  

8.   Reinstall the retaining spring with the narrow end facing inwards, towards the retaining ring. Make sure that the outer end of the spring is held securely in place in the gobo holder.

9.   Reinstall the gobo holder in the gobo wheel, sliding the tab on the gobo holder under the clip on the gobo wheel and making sure that the teeth on the gobo holder engage in the teeth on the gobo wheel.

10. Reinstall the head cover and be ready for the head to move when you reapply power.