17
Light Focus Adjustments
Note: Focus adjustment should be checked each time a new bulb is installed.
1. Place a white paper or cardboard sheet in front of the light* 27 inches from the foremost surface of the
bulb shield (or turn the light toward wall at the same distance).
2. Turn the knob at the rear of the light frame as shown in gure 13.
*Adjustment may be made any distance from 24 to 39 inches if operator prefers a different focal distance.
3. Turn the knob clockwise or counter-clockwise until the sharpest pattern is obtained at the desired range.
Yoke Pivot Friction Adjustment
Vertical
Note: If the light head pivots too freely vertically, an adjustment can be made at the location shown above on
either side of the light.
1. Remove the yoke cap on both sides of the yoke by pulling them straight out.
2. Loosen the two set screws about 1-1/2 turns (one on each side) at the yoke pivot using a 1/16 hex head
wrench.
3. Use a common screwdriver to tighten the yoke pivot adjustments. Tighten each side equally. Do not over
tighten. Be careful not to damage the wires that come through the yoke pivot adjustment screws.
4. Retighten the set screw and replace the yoke caps.
Figure 13
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