Source Technologies etc 405 User Manual

11

Step 1:

Remove the beam focus knob at the bottom of the barrel (see 

). Remove the lens 

tube from the barrel.

Step 2:

Use a Phillips screwdriver to remove the brackets that hold the lens in place. Remove the 

lens from the tube.

Step 3:

Dip the lens in a clean isopropyl alcohol/water mixture (9 parts water to 1 part isopropyl 

alcohol).

Step 4:

Use a soft moistened nylon bristle brush to wash the lens’ smooth side in a linear (non-

circular) motion.

Step 5:

Use the same brush to lightly wash the lens’ ridged side by following its ridges.

Step 6:

Dip the lens in a clean isopropyl alcohol/water mixture (9 parts water to 1 part isopropyl 

alcohol).

Step 7:

Dry the smooth and ridged surfaces with an air gun. Make sure the air flow moves liquid 

away from you.

Step 8:

Inspect the lens for dirt. Repeat steps 3-7 if necessary.

Step 9:

Set the lens back in the lens tube with the ridged side facing the front of the tube. Reinstall 

the lens brackets.

Step 10: Slide the lens tube back into the barrel with gel frame retainer on top. Reinstall beam 

focus knob.

To quickly clean the reflector, remove the lens tube and clean the dust from the reflector with a blast 

of oil-free air. You may also wipe the reflector with a clean lint-free cloth. If either method is not 

sufficient, follow these steps.

Step 1:

To protect the lamp housing during cleaning, remove the lamp housing by loosening the 

knurled bolt and pulling the housing straight out. See 

Step 2:

Remove the barrel rotation knob located at the bottom of the barrel (see 

). Use 

a Phillips screwdriver to remove the retainer bolt located on top of the reflector housing.

Step 3:

Rotate the barrel 45° in either direction. Carefully remove the barrel from the reflector 

housing.

Step 4:

Remove dust with a blast of oil-free air or wipe with a clean, lint-free cloth. Isopropyl 

alcohol, distilled water or a 50%-50% mixture of each can be used to clean the glass 

surface.

Step 5:

Insert the barrel into the reflector housing with the iris/gobo slot on top. Align the triangles 

on both parts.

Step 6:

While gently pressing in, rotate the barrel 45° clockwise until it sets into position, then 

rotate the barrel counterclockwise 45°. The barrel should be firmly attached and the 

triangles should be aligned.

Step 7:

Reinstall the barrel rotation knob and tighten the retainer bolt.

Step 8:

Reinstall the lamp housing and tighten the knurled bolt.